Post-Traumatic Stress Disorder Is Associated With Increased Emergency Department Services and Similar Rates of Opioid Prescriptions Following Primary Total Hip Arthroplasty: A Propensity Matched Analysis.

BACKGROUND: There is a paucity of literature regarding patients who have post-traumatic stress disorder (PTSD) following primary total hip arthroplasty (THA). The purpose of this study was to compare the rates of postoperative complications, prescriptions, health care utilization, and revision arthroplasty of patients who had PTSD undergoing primary THA against a propensity matched control group of patients who did not have PTSD (NPTSD). METHODS: The TriNetX database was queried to identify PTSD patients undergoing primary THA. Patients were then propensity matched in a 1:1 ratio based on twelve preoperative characteristics to a cohort of NPTSD patients. Postoperative prescriptions and rates of health care utilization were analyzed within 5 days, 14 days, and 1 month postoperatively. Complications were analyzed within one month. Revision arthroplasty rates were analyzed within 1 year and 2 years. RESULTS: A total of 198,560 patients undergoing primary THA were identified. Ultimately, 1,310 PTSD patients were successfully propensity matched to a cohort of 1,310 NPTSD patients. Patients who have PTSD presented to the emergency department at significantly higher rates than NPTSD patients within 14 days and 1 month postoperatively. Within 1 month postoperatively, cohorts were prescribed opioid analgesics at similar rates (P = .709). Patients who had PTSD received more prescriptions per patient compared to NPTSD patients. Patients who had PTSD were also found to have a higher number of total complications per person within 1 month (P = .022). Within 2 years postoperatively, rates of revision hip arthroplasty were comparable between cohorts (P = .912). CONCLUSIONS: Patients who have PTSD experience similar rates of revision hip arthroplasty and opioid prescribing compared to NPTSD patients following primary THA; however, within 1 month postoperatively, emergency department visits were greater in PTSD patients. These findings can help delineate early postoperative education and expectations for patients who have PTSD in contrast to other psychiatric diagnoses.

Corticosteroid Injections Administered Within 4 Weeks Prior to Hip Arthroscopy Are Associated With Higher Rates of Postoperative Infection.

PURPOSE: To evaluate the association between the timing of intra-articular hip corticosteroid injections and the risk of postoperative infection in patients undergoing hip arthroscopy. METHODS: The 2010-2021 PearlDiver M157 administrative claims database was queried for patients who underwent hip arthroscopy. Patients who received intra-articular corticosteroid injections within 12 weeks prior to arthroscopy were matched 1:1 to patients who did not receive such injections based on age, sex, and Elixhauser Comorbidity Index, as well as the presence of diabetes mellitus, hypertension, obesity, and tobacco use. Those with injections prior to arthroscopy were subdivided based on having received injections within 12 weeks prior to surgery. To verify that the corticosteroid injections and surgical procedures were conducted in the hip joint, Current Procedural Terminology codes were used. By use of Current Procedural Terminology and International Classification of Diseases (ninth revision and tenth revision) coding, postoperative surgical-site infection after corticosteroid injection was evaluated. The impact of the timing of preoperative corticosteroid injections on the incidence of postoperative infection was evaluated using multivariable logistic regression analysis. RESULTS: A total of 12,390 hip arthroscopy cases were identified, including 3,579 patients who received corticosteroid injections 0 to 4 weeks prior to surgery; 4,759, within 4 to 8 weeks prior to surgery; and 4,052, within 8 to 12 weeks prior to surgery. Compared with controls, patients who received corticosteroid injections within 0 to 4 weeks preoperatively had a significantly higher rate of surgical-site infection (odds ratio, 2.43; P = .0001). No significant differences in infection rates were observed at the later time intervals (4-8 weeks or 8-12 weeks). Furthermore, in comparison to controls, patients who received corticosteroid injections had a significantly higher rate of wound dehiscence (odds ratio, 1.84; P = .0007). CONCLUSIONS: Intra-articular corticosteroid injections within 4 weeks prior to hip arthroscopy were significantly associated with increased surgical-site infection rates after hip arthroscopy surgery. LEVEL OF EVIDENCE: Level III, retrospective comparative study.

Preoperative Antidepressant Prescriptions Are Associated With Increased Opioid Prescriptions and Health Care Use but Similar Rates of Secondary Surgery Following Primary Anterior Cruciate Ligament Reconstruction in a Young Adult Population.

PURPOSE: To compare adverse events, postoperative opioid-prescribing patterns, health care use, and secondary anterior cruciate ligament reconstruction (ACLR) surgery rates of patients undergoing primary ACLR with a preoperative antidepressant prescription (ADP) against a propensity-matched group with no preoperative antidepressant prescription (NADP) using the TriNetX Diamond Network. METHODS: Patients undergoing primary ACLR between ages 18 and 35 years of age were queried from the database using International Classification of Diseases, Tenth Revision/Current Procedural Terminology codes. Patients with an ADP were propensity matched in a 1:1 ratio to patients with NADP based on 11 patient characteristics. Postoperative rates of adverse events, emergency department (ED) visits, in-patient hospitalizations, outpatient services, physical therapy evaluations, postoperative opioid prescriptions, and secondary ACLR were compared at various time points. RESULTS: In total, 3,736 patients with an ADP with an average age of 21.4 ± 4.5 years undergoing primary ACLR were propensity matched to patients with NADP. A significantly greater percentage of patients with an ADP received opioid prescriptions at 2 weeks (ADP 21%, NADP 11.3%, odds ratio [OR] 2.08), 6 weeks (ADP 25.5%, NADP 13.9%, OR 2.13), 3 months (ADP 27.6%, NADP 15.6%, OR 2.07), 6 months (ADP 30.5%, NADP 17.2%, OR 2.1), and 1 year (ADP 35.3%, NADP 20.2%, OR 2.16) postoperatively (P <.0001 for each time point). Patients with ADP had greater rates of ED visits (ADP 9.7%, NADP 7.1%, P < .0001, OR 1.39) and outpatient appointments (ADP 28.3%, NADP 21.8%) P < .0001, OR 1.42) at 3 months' postoperatively. Secondary surgery rates at 1 and 2 years were nonsignificant (P = .381 and P = .062, respectively). CONCLUSIONS: Following ACLR, patients with ADP had a significant increase in postoperative opioid prescriptions at all time points and used more ED resources and outpatient services compared with patients with NADP at 3 months' postoperatively. Thirty-day postoperative adverse events and both 1- and 2-year secondary ACL surgery rates demonstrated no significant differences between the groups. LEVEL OF EVIDENCE: Level III, retrospective comparative case series.

Prior Diagnosis of Opioid-Related Disorder Is Associated With Higher Medical Resource Utilization Following Primary Hip Arthroscopy: A National Database Study.

PURPOSE: To compare adverse events, medical resource utilization, prescribing patterns, and revision surgery rates of patients with opioid-related disorders (ORDs) undergoing primary hip arthroscopy against a propensity-matched group with no opioid-related disorders (NORDs). METHODS: The TriNetX database was queried between January 2015 and December 2020 using International Classification of Diseases, 10th Revision and Current Procedural Terminology codes to identify patients undergoing primary hip arthroscopy between ages 18 and 70 years. The ORD cohort was propensity matched in a 1:1 ratio to NORD patients based on age, sex, alcohol-related disorders, heart disease, hypertension, metabolic disorders, anxiety disorders, major depressive disorder, diabetes mellitus, and antidepressant prescriptions. Postoperative rates of adverse events and medical resources were compared within 90 days of procedure, prescriptions were compared within 1 year, and revision surgery was compared within 2 years. RESULTS: A total of 809 ORD patients were propensity matched in a 1:1 ratio to NORD patients. Postoperative adverse events were similar between groups (P = .693). Rates of revision arthroscopy were also similar for both ORD (9.3%) and NORD (8.0%) cohorts (odds ratio [OR], 1.17; 95% confidence interval [CI], 0.83-1.66; P = .377). ORD patients received care from the emergency department, inpatient admission, outpatient visit, and physical therapy evaluations at higher rates. The ORD cohort received a greater amount of new opioid (OR, 2.66; 95% CI, 2.17-3.26; P < .0001) and antidepressant prescriptions (OR, 1.58; 95% CI, 1.26-1.97; P < .0001) compared to NORD patients within 1 year of surgery. CONCLUSIONS: ORD patients demonstrated similar rates of adverse events and revision surgery when compared to a propensity-matched group of NORD patients undergoing primary hip arthroscopy. However, ORD patients experienced increased rates of emergency department visits and hospitalizations and were prescribed higher rates of opioid and antidepressant prescriptions. LEVEL OF EVIDENCE: Level III, cohort study.

Venous thromboembolism prophylaxis in shoulder surgery: a break-even cost-effectiveness study.

BACKGROUND: Venous thromboembolism (VTE) is a serious complication following orthopedic shoulder surgery; however, research is limited involving the break-even cost-effectiveness of VTE prophylaxis. The purpose of this study was to determine whether the cost of aspirin and enoxaparin would break even for VTE prevention in patients following shoulder surgery. METHODS: A drug retail database was used to obtain the lowest price for a course of aspirin (81 mg) and enoxaparin (40 mg) to perform a break-even cost analysis. Our institutional purchasing records were then searched to estimate the cost of treating a symptomatic VTE. The TriNetX national database was queried to establish a rate of VTE after shoulder surgery. A break-even cost analysis was performed by determining the absolute risk reduction (ARR). This value was used to calculate the number of patients who are treated to prevent a single VTE while breaking even on cost. Sensitivity analyses were performed for drugs that did not break even at the database-derived VTE rates. RESULTS: Full medication courses of aspirin and enoxaparin were found to cost $1.18 and $125.37, respectively. The cost of treating a symptomatic VTE was determined to be $9407.00. Data from the TriNetX database showed rates of symptomatic VTE following shoulder arthroplasty, hemiarthroplasty, and arthroscopic rotator cuff repair of 1.60%, 1.50%, and 0.68%, respectively. Aspirin broke even on cost for all procedures if the initial rate decreased by an ARR of 0.01% (number needed to treat, 7972). Similarly, enoxaparin broke even for shoulder arthroplasty and hemiarthroplasty if the initial rate of VTE decreased by an ARR of 1.33% (number needed to treat, 75). Enoxaparin did not break even at the initial VTE rate for arthroscopic rotator cuff repair; however, sensitivity analysis found enoxaparin would break even if the drug could be obtained at a cost of ≤$60.00. Enoxaparin broke even if the cost of treating a symptomatic VTE was ≥$20,000.00. CONCLUSIONS: The cost of a 3-week course of twice-daily aspirin or once-daily enoxaparin breaks even for VTE prophylaxis following shoulder arthroplasty and hemiarthroplasty if these drugs reduce the VTE rate by a calculated ARR. Given the lower rate of VTE observed for patients undergoing arthroscopic rotator cuff repair, only the 3-week course of aspirin broke even under these conditions. Once-daily enoxaparin did not break even at current market rate. Further research is needed to help determine optimal VTE prophylaxis after shoulder surgery.

Ten-Year Survivorship, Outcomes, and Sports Participation in Athletes After Primary Hip Arthroscopy for Femoroacetabular Impingement Syndrome.

BACKGROUND: Hip arthroscopy is an effective treatment tool for athletes with femoroacetabular impingement (FAI) syndrome. However, long-term data are scarce. PURPOSE: To assess survivorship, minimum 10-year patient-reported outcome measures (PROMs), and sports participation after primary hip arthroscopy for FAI syndrome in athletes and to perform a propensity-matched comparison between patients undergoing labral debridement and labral repair. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Athletes who underwent hip arthroscopy for FAI syndrome between February 2008 and December 2010 were eligible. Exclusion criteria were other ipsilateral hip condition, Tönnis grade ≥2, or no baseline PROMs. Survivorship was defined as no conversion to total hip arthroplasty. The Patient Acceptable Symptom State (PASS), minimal clinically important difference (MCID), maximum outcome improvement (MOI) satisfaction threshold, and sports participation were reported. A propensity-matched comparison between labral debridement and labral repair was performed. Two additional propensity-matched subanalyses were performed for capsular management and cartilage damage. RESULTS: In total, 189 hips (177 patients) were included. The mean ± SD follow-up was 127.2 ± 6.0 months. Survivorship was 85.7%. Significant improvement in all PROMs was reported (P < .001). A total of 46 athletes with labral repair were propensity matched to 46 athletes with labral debridement. This subanalysis demonstrated significant and comparable improvement in all PROMs at minimum 10-year follow-up (P < .001). For the labral repair group, the PASS achievement rates were 88.9% for the modified Harris Hip Score (mHHS) and 80% for the Hip Outcome Score-Sport Specific Subscale (HOS-SSS); the MCID achievement rates were 80.6% for the mHHS and 84% for HOS-SSS; and for the MOI satisfaction threshold, rates were 77.8%, 80.6%, and 55.6% for the mHHS, Nonarthritic Hip Score, and visual analog scale, respectively. For the labral debridement group, the PASS achievement rates were 85.3% for the mHHS and 70.4% for the HOS-SSS; the MCID achievement rates were 81.8% for the mHHS and 74.1% for HOS-SSS; and for the MOI satisfaction threshold, rates were 72.7%, 81.8%, and 66.7% for the mHHS, Nonarthritic Hip Score, and visual analog scale. Total hip arthroplasty conversions occurred significantly sooner with labral debridement than labral repair (P = .048). Age was identified as a significant predictor of achieving the PASS. CONCLUSION: Primary hip arthroscopy for FAI syndrome in athletes results in 85.7% survivorship and sustained PROM improvement at a minimum 10-year follow-up. A significant time delay to total hip arthroplasty conversion at 10-year follow-up was reported with labral repair over debridement, although this should be interpreted with caution, as the total number of conversions was small.

Mid- and Long-Term Outcomes Are Favorable for Patients With Borderline Dysplasia Undergoing Primary Hip Arthroscopy: A Systematic Review.

PURPOSE: To evaluate midterm outcomes, long-term outcomes, and survivorship in the borderline dysplastic population after primary hip arthroscopy. METHODS: A systematic review of current literature was performed with the following key words: "hip, "arthroscopy," "borderline dysplasia," "borderline hip dysplasia," "developmental dysplasia," "ten-year," "survivorship," "10-year," "5-year," "five year," "mid-term," "long-term," "outcomes," "arthroscopic," and "femoroacetabular impingement" in PubMed, Cochrane, and Scopus in March 2022 using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. The following information was recorded: title, author, publication date, study design, demographic, number of hips, follow-up time, study period, indications for hip arthroscopy, patient-reported outcomes (PROs), characteristics of patients converting to total hip arthroplasty (THA), and rates of secondary surgeries and conversion to THA were recorded. Survivorship was defined as not converting to THA. Kappa values for the title/abstract and full-text screening were calculated. Forest plots were created for PROs that were included in 3 or more studies. RESULTS: Six articles comprising 413 hips were included in the study. Three studies were Level III evidence, and 3 studies were Level IV evidence. Average follow-up ranged from 5.7 to 12.2 years. One study defined borderline hip dysplasia as lateral center-edge angle 18-25° and 5 defined it as lateral center-edge angle 20-25°. All studies included PROs and reported significant improvement after surgery in at least one PRO. Three studies reported clinical benefit and across the studies at least 70% of patients achieved minimum clinically important difference in at least one PRO. Rates of undergoing revision hip arthroscopy and THA ranged from 2.1% to 7% and 0% to 24%, respectively. Tönnis grade 2, Tönnis angle >15, and Outerbridge Grade IV cartilage damage were identified as predictors of conversion to THA. CONCLUSIONS: Patients with borderline hip dysplasia undergoing primary hip arthroscopy demonstrated significant improvement in PROs at midterm and long-term follow-up. Survivorship at midterm follow-up was 98.2% (328/334 hips) and 76.3% (29/38 hips) at long-term follow-up. LEVEL OF EVIDENCE: Level IV, systematic review of Level III and Level IV studies.

Patients Undergoing Primary Hip Arthroscopy Report Favorable Outcomes at Minimum 10 Year Follow-Up: A Systematic Review.

PURPOSE: (1) To evaluate minimum 10-year PROs (patient-reported outcomes) and survivorship after primary hip arthroscopy and (2) to identify predictors of failure for secondary arthroscopy and conversion to total hip arthroplasty (THA). METHODS: A systematic review of the literature was conducted with the following key words: "hip arthroscopy," "long-term," "outcomes," "ten-year," "survivorship," "10-year," "15-year," "fifteen-year," 20-year," "twenty-year," and "femoroacetabular impingement" in PubMed and Embase in March 2022 using the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Level I to Level IV evidence was included and reported on minimum 10-year outcomes or greater after primary hip arthroscopy. Long-term studies were defined as minimum 10-year follow-up in accordance with established standards in the literature. Case reports, review articles, technique articles, and opinion articles were excluded. Articles not in English were excluded. Title, author, publication date, study design, demographic, number of hips, follow-up time, study period, indications for hip arthroscopy, PROs, predictors of failure for THA, and rates of secondary surgeries were recorded. Survivorship was defined as a nonconversion to THA. P < .05 was defined as statistical significance. RESULTS: Twelve studies met the inclusion criteria. In total, 4 studies were Level III, and 8 studies were Level IV. A total of 1,344 hips were included, and follow-up ranged from 10 to 20 years. Femoroacetabular impingement syndrome was the most common indication for hip arthroscopy. Ten of the 12 studies reported on PROs, and 8 studies reported significant improvement after hip arthroscopy at long-term follow-up. The remaining 2 studies reported favorable outcomes that satisfied clinical benefit thresholds at minimum 10-year follow-up. Five studies reported clinical benefit where each patient cohort achieved 80% minimal clinically important difference and 75% patient acceptable symptomatic state for at least one PRO. Rates of secondary arthroscopy ranged from 4.5% to 24%, and rates of conversion to THA varied from 0% to 44.1%. Older age and chondral damage were the most commonly cited predictors for conversion to THA. CONCLUSIONS: At long-term follow-up, patients who underwent primary hip arthroscopy demonstrated favorable outcomes and variable rates of secondary surgeries. Patients undergoing hip arthroscopy within the last 20 years with Tönnis grade <1 and labral repair experienced greater than 90% survivorship. Chondral damage and older age were the most cited predictors for conversion to THA. LEVEL OF EVIDENCE: Level IV, systematic review of Level III and Level IV studies.

Simplified biplanar classification for heterotopic ossification is more predictive of patient-reported outcomes than the Brooker classification after anterior total hip arthroplasty.

BACKGROUND: Heterotopic ossification (HO) commonly occurs after total hip arthroplasty (THA) and can adversely impact clinical outcomes. The purpose of this study is to propose a more reliable HO grading method that is better predictive of patient-reported outcomes (PROs) after THA than the Brooker classification. METHODS: 513 THAs (62 ± 10 years old) were reviewed. The incidence and grade of HO was evaluated using the Brooker grading system and a simplified biplanar classification system (grade 1: ⩾1 cm between bone on both anteroposterior and lateral views, grade 2: <1 cm between bone on either view). The modified Harris Hip Score (mHHS), Forgotten Joint Score (FJS), and visual analogue scale (VAS) for pain were collected at minimum of 2 years after surgery and were compared between HO grades using multiple regression models. RESULTS: The incidence of HO varied by Brooker grade (grade 1, 23.4%; grade 2, 22.4%; grade 3, 7.2%; grade 4, 0%) and biplanar grade (grade 1: 45.6%; grade 2: 7.4%). The biplanar classification demonstrated higher interobserver reliability than the Brooker classification (κ = 0.95 and 0.91, respectively). Brooker grade 3 HO decreased the mHHS by 6.5 (standard error: 2.7) but did not have a significant effect on FJS or VAS. Biplanar grade 2 HO decreased the mHHS by 9.9 (standard error: 2.7), the FJS by 12.9 (standard error: 4.51) and increased the VAS pain score by 0.81 (standard error: 0.35). The Cox test was used to compare the fit of regression models and determined the biplanar classification was a significantly better predictor than the Brooker classification (p < 0.001). CONCLUSIONS: Biplanar grade 2 HO had a significant negative influence on PROs. Contrary to previous literature, these results show clinical significance of non-bridging HO. Compared with the Brooker classification, the biplanar classification has greater interobserver reliability and is more predictive of outcomes after THA.

High-Level Athletes With Borderline Hip Dysplasia Achieve Favorable Outcomes and Return to Sport Rates Following Primary Hip Arthroscopy: Minimum 5-Year Outcomes Comparison to a Propensity-Matched Control Group.

PURPOSE: (1) To report minimum 5-year patient-reported outcomes (PROs) and return to sport (RTS) rates in high-level athletes with borderline hip dysplasia (BHD) following primary hip arthroscopy for labral pathology and femoroacetabular impingement syndrome and (2) to compare results to a propensity-matched control group of athletes with normal acetabular coverage. METHODS: Data were reviewed for surgeries performed between February 2009 and February 2016. Patients were eligible if they underwent primary hip arthroscopy in the setting of BHD (lateral center-edge angle [LCEA] 18-25°) and competed in professional, collegiate, or high school sports. Inclusion criteria were preoperative and minimum 5-year follow-up scores for the modified Harris Hip Score (mHHS), Non-Arthritis Hip Score, Hip Outcome Score-Sport Specific Subscale (HOS-SSS), and visual analog scale for pain. Rates of achieving the minimal clinically importance difference (MCID), patient acceptable symptomatic state (PASS), and maximum outcome improvement satisfaction threshold (MOIST) were recorded in addition to RTS. BHD athletes were matched by age at the time of surgery, sex, body mass index, Tönnis grade, follow-up time, sport type, and competition level to a control group of 58 athletes with normal acetabular coverage (LCEA 25°-40°) for comparison. RESULTS: A total of 34 BHD athletes were included with a mean follow-up of 73.6 ± 10.7 months. BHD athletes showed significant improvements in all PROs, demonstrated high RTS rates (90.0%), and achieved PASS/MCID/MOIST for mHHS (MCID: 80.0%, PASS: 93.3%, MOIST: 80.0%) and HOS-SSS (MCID: 76.7%, PASS: 73.3%) at high rates. When compared to a propensity-matched group with normal acetabular coverage, BHD athletes demonstrated similar postoperative PROs, rates of achieving psychometric thresholds, and RTS rates (P > .05). Additionally, by the latest follow-up, no athlete in either group required conversion to total hip arthroplasty. CONCLUSIONS: High-level athletes with BHD undergoing primary hip arthroscopy for labral pathology and femoroacetabular impingement syndrome may expect favorable midterm outcomes and high RTS rates. These results were comparable to a control group of athletes with normal coverage. LEVEL OF EVIDENCE: Level III, retrospective cohort study.

Outcomes After Primary Hip Arthroscopy in Athletes Older Than 40 Years Compared With Nonathletes.

BACKGROUND: Master athletes (MAs), or athletes older than 40 years, make up a patient population whose outcomes after primary arthroscopic hip surgery are largely unknown. PURPOSE: To report minimum 2-year outcomes of MAs after primary hip arthroscopy and compare their results to a propensity-matched nonathlete (NA) control group. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were prospectively collected between February 2008 and April 2019 and retrospectively reviewed for all patients who underwent primary hip arthroscopy. Patients were included if they were older than 40 years and had preoperative data for the modified Harris Hip Score, Nonarthritic Hip Score, Hip Outcome Score-Sports Specific Subscale, and visual analog scale score for pain. MAs reported participating in organized sports competition within 1 year before surgery and were propensity matched to a control group of patients who did not report participating in organized sports competition (NAs). Patient characteristics, radiographic and intraoperative findings, surgical procedures performed, and patient-reported outcome measures (PROMs) were reported and compared between the groups. The rates of achieving the minimal clinically important difference and maximum outcome improvement satisfaction threshold were recorded. RESULTS: A total of 366 hips were eligible; 328 (89.6%) had adequate follow-up data. 328 patients met inclusion criteria but 88 were not included due to the restrictions of the propensity score match ratio. Of these, 80 hips (76 patients) were classified as MAs (mean age, 48.9 ± 6.2 years) and were propensity matched 1:2 to an NA control group. Groups were comparable for baseline demographic and radiographic parameters, intraoperative findings, and procedures performed. MAs had significantly better baseline and minimum 2-year PROM scores (P < .05), higher satisfaction (P = .01), and higher rates of achieving clinically meaningful improvement across all the outcome tools used (P < .05). MAs, when compared with NAs, had lower rates of secondary arthroscopy (0% vs 7.5%, respectively; P = .001) and conversion to total hip arthroplasty (12.5% vs 26.9%, respectively; P = .011). CONCLUSION: MAs demonstrated favorable outcomes after primary hip arthroscopy. When compared with a propensity score-matched control group of NA patients, MAs demonstrated better preoperative and postoperative PROMs, higher rates of clinically meaningful improvement, and lower rates of secondary arthroscopy and conversion to total hip arthroplasty. Absolute improvements in PROM scores were similar between the groups.

Workers' Compensation Patients Improved After Hip Arthroscopy for Labral Tears: A 5-Year Outcome Propensity Score-Matched Study.

BACKGROUND: The workers' compensation (WC) status has been associated with inferior outcomes in orthopaedic procedures and is usually excluded from clinical outcome studies. Therefore, comparative studies based on WC status are scarce. PURPOSE: (1) To determine outcomes of patients with WC claims treated with hip arthroscopy for labral tears at a minimum 5-year follow-up and (2) to compare these findings with a propensity score-matched control group without WC claims. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Patients were propensity score matched to a control group without WC claims. Data were prospectively collected for all patients undergoing hip arthroscopy. Patients were included if they received primary hip arthroscopy for labral tears in the setting of femoroacetabular impingement, had a WC claim, and had preoperative and minimum 5-year follow-up patient-reported outcomes ([PROs]; modified Harris Hip Score [mHHS], Non-Arthritic Hip Score [NAHS], Hip Outcome Score-Sports Specific Subscale [HOS-SSS], and visual analog scale [VAS] for pain). Clinical outcomes were measured using the Patient Acceptable Symptom State (PASS), minimal clinically important difference (MCID), and maximum outcome improvement satisfaction threshold (MOI). RESULTS: A total of 111 from 132 (84.1%) eligible WC patients met the inclusion criteria with an average follow-up time of 80.3 ± 37.3 months. WC cases demonstrated significant improvement from preoperatively to a minimum 5-year follow-up for mHHS, NAHS, HOS-SSS, and VAS for pain (P < .05). WC patients returned to work at a 66% rate, with an average clearance time of 4.7 months to light duty and 9.5 months to heavy duty. When compared with the control group, the WC group demonstrated lower pre- and postoperative PROs (P < .05); however, WC cases had a greater magnitude of improvement (ΔmHHS [P = .0012], ΔNAHS [P < .001], and ΔHOS-SSS [P = .012]). Rates of achieving MCID and MOI were similar in both groups (P > .05). The WC group went on to receive a future arthroscopy in 19 cases (17.1%), while 10 cases (4.5%) in the control group required revision arthroscopy (P < .001). Patients in both the WC and the control groups converted to total hip arthroplasty at similar rates (13.3% and 15.4%, respectively; P > .05). CONCLUSION: Patients with WC claims treated with hip arthroscopic surgery showed significant improvement and high rates of returning to work at a minimum 5-year follow-up. Although having lower scores in PROs and achieving PASS rates, no differences were found in MCID and MOI rates. Furthermore, WC patients had a greater magnitude of improvement from preoperatively to a minimum 5-year follow-up after hip arthroscopy. Therefore, even though more studies are needed to determine the causes of inconsistent outcomes in the WC population, hip arthroscopy can effectively treat labral tears in the setting of femoroacetabular impingement, regardless of the WC status.

Pathologic Findings on Hip Arthroscopy in High-Level Athletes Competing in Flexibility Sports.

BACKGROUND: Athletes who compete in flexibility sports (FS) place unique demands on their hip joints because of the supraphysiologic range of motion required. PURPOSE: To compare the pathologic features, outcomes, and return-to-sports (RTS) rates of high-level athletes participating in FS who underwent hip arthroscopy for femoroacetabular impingement syndrome (FAIS) and labral tear against a propensity score-matched cohort of high-level athletes participating in non-flexibility sports (NFS). STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were prospectively collected and retrospectively reviewed for high-level athletes who underwent primary hip arthroscopy for FAIS from April 2008 to December 2018. Patients who participated in FS such as dancing, gymnastics, martial arts, figure skating, and cheerleading were propensity score matched by body mass index, age at time of surgery, sex, sports competition level, and labral treatment to a cohort of high-level athletes participating in all other sports, such as distance running, soccer, volleyball, and softball. Baseline patient characteristics, intraoperative findings, and surgical procedures were compared. Minimum 2-year patient-reported outcome measures were compared for the modified Harris Hip Score, Nonarthritic Hip Score, Hip Outcome Score-Sport Specific Subscale, and visual analog scale for pain and satisfaction. Rates of secondary surgery and RTS were compared. RESULTS: A total of 47 patients (50 hips) who participated in FS were included and propensity score matched to 130 patients (150 hips) who participated in NFS. Follow-up time was 37.5 ± 10.4 months (mean ± SD). Most patients (96.0%) were female with a mean age of 19.5 ± 7.3 years. FS athletes had significantly higher rates of femoral head cartilage lesions (Outerbridge ≥2; 12.0% vs 2.0%; P = .008) and ligamentum teres tears (48% vs 26%; P = .003). FS and NFS athletes demonstrated significant clinical improvements after surgery for all patient-reported outcome measures. Of the patients who attempted, 34 (75.6%) participating in FS were able to RTS while 11 (24.4%) were not because of ongoing hip issues. This was not significantly different than the NFS group (P = .073). CONCLUSION: High-level athletes who participated in FS and were treated for FAIS with hip arthroscopy exhibited higher rates of femoral head cartilage lesions and ligamentum teres tears requiring debridement when compared with a benchmark group of athletes who participated in other sports. Despite this, both groups demonstrated similar improvements in outcome scores and comparable rates of RTS at minimum 2-year follow-up.

High Body Mass Index Does Not Adversely Affect Outcomes in High-Level Athletes Undergoing Primary Hip Arthroscopy: A Propensity-Matched Comparison With Minimum 2-Year Follow-up.

BACKGROUND: The effect of high body mass index (BMI) on outcomes in athletes has not been established. PURPOSE: (1) To report minimum 2-year patient-reported outcome (PRO) scores and return to sports (RTS) for high-level athletes with high BMI undergoing hip arthroscopy for femoroacetabular impingement syndrome (FAIS) and (2) to compare results with a propensity-matched control group of high-level athletes with a normal BMI. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were collected on all professional, collegiate, and high school athletes who had a high BMI (>30) and who had undergone primary hip arthroscopy for FAIS between January 2010 and December 2018. RTS status and minimum 2-year PROs were collected for the modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), Hip Outcome Score-Sports Specific Subscale (HOS-SSS), and visual analog scale (VAS) for pain. The percentage of patients achieving the minimal clinically important difference (MCID) and Patient Acceptable Symptom State (PASS) were also recorded. These patients were propensity matched in a 1:3 ratio to high-level athletes with a normal BMI for comparison. RESULTS: A total of 30 high-level athletes with a high BMI were included with a mean follow-up of 49.4 ± 29.5 months. They demonstrated significant improvement from preoperatively to latest follow-up for mHHS, NAHS, HOS-SSS, and VAS (P < .001). When outcomes were compared with a propensity-matched control group of 90 athletes with a normal BMI, athletes with a high BMI had worse acetabular cartilage injury and were more likely to undergo acetabular microfracture (P < .001). Athletes with a high BMI demonstrated lower postoperative scores for NAHS when compared with athletes with a normal BMI (88.06 ± 9.37 [range, 60-100] and 90.25 ± 10.79 [range, 48.75-100], respectively; P = .049). Athletes with a high BMI also demonstrated worse postoperative scores for HOS-SSS when compared with athletes with a normal BMI (77.22 ± 18.31 [range, 22.22-100] and 82.38 ± 22.79 [range, 2.78-100], respectively; P = .038). Rates of achieving MCID for the high-BMI and normal-BMI groups were comparable in mHHS (90.0% and 77.8%, respectively; P = .185) and HOS-SSS (90.0% and 82.2%, respectively; P = .397). PASS rates were also comparable between the high- and normal-BMI groups for mHHS (90.0% and 87.8%, respectively; P > .999) and HOS-SSS (70.0% and 71.1%, respectively; P = .908). Athletes with a high BMI also returned to sports at a lower rate compared with athletes with a normal BMI, but this did not reach statistical significance (P = .479). CONCLUSION: Athletes with a high BMI undergoing primary hip arthroscopy for FAIS demonstrated significant improvement in PROs and favorable rates achieving clinically meaningful improvement. When compared with a control group of high-level athletes with a normal BMI, they exhibited similar rates of achieving psychometric thresholds and RTS rates. At short-term follow-up, high BMI did not adversely affect outcomes of high-level athletes undergoing primary hip arthroscopy.

Postoperative Alpha Angle Is Predictive of Return to Sport in Athletes Undergoing Hip Arthroscopy for Femoroacetabular Impingement.

PURPOSE: To identify clinical and radiographic factors that predict return to sport in athletes undergoing hip arthroscopy and to determine thresholds for significant predictors. METHODS: Data were reviewed on all patients who underwent primary hip arthroscopy between November 2008 and August 2018. Patients were included if they played professional, college, or high school sports within 1 year before surgery and had preoperative, 3-month, 1-year, and 2-year postoperative patient-reported outcome scores for modified Harris Hip Score, Hip Outcome Score-Sport Specific-Subscale, and Nonarthritic Hip Score. Rates of achieving the minimal clinically important difference also were evaluated. Patients were divided into groups based on whether they returned to sport at the same or greater level. Multivariate logistic regression and receiver operator characteristic analysis were used to evaluate the correlation between significant variables and return to sport. RESULTS: A total of 136 patients with a mean age of 20.8 ± 7.07 years were included. Among athletes who attempted to return, professional and collegiate athletes returned to sport at any level at a rate of 85.0% (51/60), and high-school athletes returned at a rate of 88.1% (52/59). Competition level, postoperative alpha angle, change in alpha angle, and postoperative patient-reported outcomes were significantly different between groups. Athletes who returned to sport achieved the minimal clinically important difference for Hip Outcome Score-Sport Specific-Subscale at significantly higher rates than athletes who did not return to sport (91.6% vs 71.7%, P = .002, S = 8.97). The multivariate logistic regression model identified postoperative alpha angle as a statistically significant predictor of return to sport (P < .001, S > 9.97 [odds ratio 0.85, 95% confidence interval 0.79-0.91]). The receiver operator characteristic curve for postoperative alpha angle demonstrated acceptable discrimination between patients returning to sport and patients not returning to sport with an area under the curve of 0.71 and a threshold value of 46°. Athletes with a postoperative alpha angle ≤46° returned to sport at significantly higher rates than those with a postoperative alpha angle >46° [(P < .001, S > 9.97 [odds ratio 6.3, 95% confidence interval 2.6-15.2]). CONCLUSIONS: Postoperative alpha angle was identified as a predictor of return to sport in athletes. The odds of returning to sport were 6.3 times greater in athletes with postoperative alpha angles ≤46° compared with athletes with angles >46°. LEVEL OF EVIDENCE: III, retrospective cohort study.

Clinical Outcomes and Reoperation Rates After Hip Arthroscopy in Female Athletes With Low Versus Normal Body Mass Index: A Propensity-Matched Comparison With Minimum 2-Year Follow-up.

BACKGROUND: The effect of low body mass index (BMI) on outcomes in female athletes is unknown. PURPOSE: (1) To report minimum 2-year patient-reported outcomes and return to sports for high-level female athletes with low BMI undergoing hip arthroscopy for femoroacetabular impingement syndrome and (2) to compare results with those of a propensity-matched control group of high-level female athletes with a normal BMI. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were collected on all professional, collegiate, and high school female athletes who had a low BMI and underwent primary hip arthroscopy between September 2009 and March 2017 at our institute. Return-to-sports status and minimum 2-year patient-reported outcomes were collected for the modified Harris Hip Score (mHHS), Nonarthritic Hip Score, Hip Outcome Score-Sport Specific Subscale, and visual analog scale (VAS) for pain. The percentage of patients achieving the minimal clinically important difference (MCID), Patient Acceptable Symptom State (PASS), and maximum outcome improvement satisfaction threshold (MOIST) was also recorded. These patients were propensity matched to high-level female athletes with a normal BMI for comparison. RESULTS: A total of 21 high-level female athletes (25 hips) with a mean ± SD follow-up of 58.9 ± 31.5 months were included. They demonstrated significant improvement from preoperatively to latest follow-up for the mHHS, Nonarthritic Hip Score, Hip Outcome Score-Sport Specific Subscale, and VAS (P < .001). When outcomes were compared with those of the control group, female athletes with low BMI demonstrated lower rates of achieving the MCID for the mHHS (54.5% vs 77.4%; P = .041), PASS for the International Hip Outcome Tool-12 (45.5% vs 72.6%; P = .022), and MOIST for the VAS (31.8% vs 56.5%; P = .047). There were no other significant differences in the rate of achieving the MCID, PASS, or MOIST between the groups (P > .05). Female athletes with low BMI also had higher rates of revision when compared with the control group (27.2% vs 10.6%; P = .049), but there were comparable return-to-sports rates (75.0% vs 74.5%; P > .05). CONCLUSION: High-level female athletes with low BMI undergoing primary hip arthroscopy for femoroacetabular impingement syndrome demonstrated significant improvement in patient-reported outcomes and acceptable rates of return to play. When compared with a control group with normal BMI, they exhibited higher rates of revision and lower rates of achieving the MCID for the mHHS, PASS for the International Hip Outcome Tool-12, and MOIST for the VAS.

Return to Sports and Minimum 2-Year Outcomes of Hip Arthroscopy in Elite Athletes With and Without Coexisting Low Back Pain: A Propensity-Matched Comparison.

BACKGROUND: Patient-reported outcomes (PROs) and return to sports (RTS) after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) have not been established in elite athletes with coexisting low back pain (LBP). PURPOSE: (1) To report minimum 2-year PROs and RTS rates after primary hip arthroscopy for FAIS in elite athletes with coexisting LBP and (2) to compare clinical results with a propensity-matched control group of elite athletes without back pain. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were reviewed for elite athletes (college and professional) who underwent hip arthroscopy for FAIS and had coexisting LBP between October 2009 and October 2018. Inclusion criteria were preoperative and minimum 2-year follow-up for the modified Harris Hip Score, Nonarthritic Hip Score, Hip Outcome Score-Sports Specific Subscale (HOS-SSS), and visual analog scale for pain. Exclusion criteria were Tönnis grade >1, hip dysplasia (lateral center-edge angle <18°), and previous ipsilateral hip or spine surgery or conditions. Rates of achieving the minimal clinically importance difference (MCID), patient acceptable symptomatic state (PASS), and maximum outcome improvement satisfaction threshold were recorded in addition to RTS. For the subanalysis, the elite athlete study group was propensity matched to an elite athlete control group without back pain. RESULTS: A total of 48 elite athletes with LBP who underwent primary hip arthroscopy met inclusion criteria, and follow-up was available for 42 (87.5%) at 53.2 ± 31.6 months (mean ± SD). Elite athletes with coexisting LBP demonstrated significant improvements in all recorded PROs and achieved the MCID and PASS for the HOS-SSS at rates of 82.5% and 67.5%, respectively. They also returned to sports at a high rate (75.8%), and 79% of them did not report LBP postoperatively. PROs, rates of achieving the MCID and PASS for the HOS-SSS, and RTS rates were similar between the study group and propensity-matched control group. CONCLUSION: Elite athletes with coexisting LBP who undergo primary hip arthroscopy for FAIS may expect favorable PROs, rates of achieving the MCID and PASS for the HOS-SSS, and RTS rates at minimum 2-year follow-up. These results were comparable to those of a propensity-matched control group of elite athletes without back pain. In athletes with hip-spine syndrome, successful treatment of their hip pathology may help resolve their back pain.

Earlier Treatment Yields Superior Outcomes in Competitive Athletes Undergoing Primary Hip Arthroscopy.

PURPOSE: To report minimum 2-year patient-reported outcome scores (PROs) and return to sport (RTS) for competitive athletes undergoing primary hip arthroscopy for femoroacetabular impingement syndrome within 1 year of symptom onset and to compare these results with a propensity-matched control group of competitive athletes with symptoms for over 1 year. METHODS: Data on professional, collegiate, high-school, and organized amateur athletes who underwent primary hip arthroscopy within 1 year of symptom onset between April 2008 and November 2017 were collected. RTS and minimum 2-year PROs were collected for the modified Harris Hip Score (mHHS), Non-arthritic Hip Score (NAHS), Hip Outcome Score-Sport Specific Subscale (HOS-SSS), International Hip Outcome Tool (iHOT-12), and visual analog pain scale (VAS). Rates of achieving minimal clinically important difference (MCID) were also evaluated. These patients were propensity-matched to a control group of competitive athletes with symptoms for over one year for comparison. RESULTS: Fifty competitive athletes (51 hips, 54.9% female) were included in the study group with a mean follow-up of 70.9 ± 29.1 months and age of 23.6 ± 11.3 years. They demonstrated significant improvement from preoperative to latest follow-up for all recorded PROs (P < .001) and RTS at a rate of 72.9%. When outcomes were compared to the control group, the study group demonstrated similar preoperative scores for all PROs but significantly better minimum 2-year postoperative scores for NAHS (93.8 vs 85.1, P = .0001), HOS-SSS (89.1 vs 77.2, P = .001), iHOT-12 (87.7 vs 76.4, P = 0.011), and VAS (1.5 vs 2.4, P = 0.027). Rates of achieving MCID for HOS-SSS and mHHS were comparable between groups. Further, RTS rates were similar between groups (P = .301). CONCLUSION: Competitive athletes undergoing primary hip arthroscopy with symptoms for less than 1 year demonstrated superior 2-year PROs compared to a propensity-matched control group with symptoms for over 1 year, but the rates achieving MCID and RTS were similar between groups. LEVEL OF EVIDENCE: Level III, retrospective comparative study.

High-Level Athletes Who Did Not Return to Sport for Reasons Unrelated to Their Hip Achieve Successful Midterm Outcomes With a Benchmarking Against High-Level Athletes Who Returned to Sport.

PURPOSE: 1) To report minimum 2- and 5-year outcomes of high-level athletes who did not return to sport (RTS) after hip arthroscopy for reasons unrelated to their hip (T athletes) and 2) to benchmark these findings against a propensity-matched control group of high-level athletes who returned to sport (RTS athletes). METHODS: Data were prospectively collected and retrospectively reviewed for professional, collegiate, and high school athletes between April 2008 and October 2015, who underwent primary hip arthroscopy. Athletes were considered eligible if they did not return to sport for reasons unrelated to their hip such as loss of interest, graduation, or a lifestyle transition (T athletes). Inclusion criteria were preoperative and minimum 5-year postoperative patient-reported outcomes (PROs) for the modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), Hip Outcome Score-Sports Specific Subscale (HOS-SSS), and the visual analog scale (VAS) for pain. Clinical outcomes were assessed using the minimal clinically important difference (MCID) and maximum outcome improvement satisfaction threshold (MOIST). T athletes were then propensity-matched to a control group of high-level athletes who returned to sport after hip arthroscopy (RTS athletes) for comparison. RESULTS: Twenty-seven T hips (25 patients) were included in the analysis with a mean follow-up time of 38.9 ± 16.8 and 72.1 ± 16.8 months for minimum 2- and 5-year outcomes, respectively. They demonstrated significant improvement in all measured PROs. When compared to a propensity-matched control group of RTS athletes, T athletes demonstrated similar improvement in PROs (mHHS, NAHS, and HOS-SSS) and achieved MCID at similar rates for NAHS (T: 77.8% vs RTS: 68.8%; P = .570) and HOS-SSS (T: 70.3% vs RTS: 76.6%, P = .824) compared to RTS athletes; however T athletes demonstrated higher rates of achieving MCID for mHHS (T: 88.9% vs RTS: 72.9% P = .033). CONCLUSION: Athletes who did not return to sport for reasons unrelated to their hip demonstrated favorable outcomes at minimum 2- and 5-year follow-up. They had similar PROs and rates of achieving MCID for HOS-SSS compared to a propensity-matched control group of high-level athletes who returned to sport. Return to sport status may not necessarily be correlated to the patient's perception of their own outcome. LEVEL OF EVIDENCE: III, retrospective cohort study.

Return to Sports and Minimum 2-Year Outcomes of Bilateral Hip Arthroscopy in High-Level Athletes With a Propensity-Matched Benchmarking Against a Unilateral Control Group.

BACKGROUND: Return to sports (RTS) and patient-reported outcomes (PROs) for high-level athletes after bilateral hip arthroscopy have not been well established. PURPOSE: (1) To report minimum 2-year PROs and RTS rates in high-level athletes who underwent staged bilateral primary hip arthroscopies and (2) to compare clinical results against a propensity-matched control group of high-level athletes who underwent unilateral primary hip arthroscopy. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Data were prospectively collected and retrospectively reviewed for high-level athletes (professional, college, or high school) who underwent staged bilateral hip arthroscopy for femoroacetabular impingement syndrome between September 2009 and October 2018. Inclusion criteria were preoperative and minimum 2-year follow-up for modified Harris Hip Score, Non-arthritic Hip Score, Hip Outcome Score-Sports Specific Subscale (HOS-SSS), and visual analog scale for pain. Exclusion criteria were Tönnis grade >1, hip dysplasia (lateral center-edge angle <18°), and previous ipsilateral hip surgery/conditions. Rates of achieving the minimal clinically important difference (MCID), patient acceptable symptomatic state (PASS), and maximum outcome improvement satisfaction threshold were recorded in addition to RTS. These athletes were then propensity matched in a 1:3 ratio to high-level athletes who underwent unilateral arthroscopy for comparison. Outcomes were compared among the first hip of the study group, the second hip of the study group, and the control group. RESULTS: A total of 74 high-level athletes who underwent bilateral hip arthroscopy met the inclusion criteria, and follow-up was available for 68 (91.9%) at 58.9 ± 24.5 months (mean ± SD). Athletes undergoing bilateral hip arthroscopy returned to sports at a high rate (81.7%), demonstrated significant improvements in all recorded PROs, and achieved the MCID and PASS for the HOS-SSS at rates of 80.9% and 64.7%, respectively. PROs, RTS rate, and rates of achieving the MCID and PASS for the HOS-SSS were similar when the bilateral study group was compared with the unilateral control group (P > .05). CONCLUSION: High-level athletes who undergo staged bilateral primary hip arthroscopy for femoroacetabular impingement syndrome may expect favorable PROs and RTS rates at minimum 2-year follow-up. These results were comparable with those of a propensity-matched control group of high-level athletes who underwent unilateral primary hip arthroscopy.