Female patients have greater improvement in pain symptoms and physical activity after fasciotomy for treatment of chronic exertional compartment syndrome of the lower leg.

PURPOSE: The purpose of this study was to identify sex differences in postoperative outcomes and return-to-sport rates after fasciotomy for treatment of chronic exertional compartment syndrome (CECS) of the lower leg. It was hypothesised that male CECS patients would have a higher rate of return to sport than female CECS patients. METHODS: A retrospective cohort study was conducted involving patients who underwent primary fasciotomy of one to four leg compartments for treatment of CECS at a single centre from 2010 to 2020. Each affected leg was treated as a separate subject. Postoperative outcomes included CECS pain frequency and severity, return to sport and Tegner activity level. Multivariable regression was used to determine if sex was an independent predictor of outcomes after adjusting for demographic and clinical covariates. p < 0.05 were considered significant. RESULTS: Eighty-one legs (44 M, 37 F) of 47 unique patients (34 of whom had bilateral symptoms) were included with a mean follow-up time of 51.5 ± 31.4 months. Male subjects were older (p < 0.001) and had higher body mass index (p < 0.001) compared to female subjects. Most subjects (84.0%) underwent two- or four-compartment fasciotomies. Female sex was found to be predictive of lower overall postoperative pain severity (p = 0.007), higher odds of return to sport (p = 0.04) and higher postoperative Tegner score (p = 0.005). However, female sex was not predictive of postoperative pain frequency, odds of reoperation or odds of return to sport to at least the presymptomatic level (all p < 0.05). CONCLUSION: Female sex is independently predictive of reduced overall pain severity, higher odds of return to sport and higher postoperative improvement in Tegner score following fasciotomy for treatment of lower-limb CECS. LEVEL OF EVIDENCE: III.

Glenohumeral morphological predictors of recurrent shoulder instability following arthroscopic Bankart repair.

PURPOSE: The purpose of this study was to evaluate glenohumeral morphological features on a magnetic resonance arthrogram (MRA) to determine risk factors for recurrence of anterior shoulder instability following arthroscopic Bankart repair (ABR). METHODS: A retrospective review of patients who underwent ABR between 2012 and 2017 was performed to identify patients who had recurrence of instability following stabilisation (Group 1). These were pair-matched in a 2:1 ratio for age, gender and sport with a control (Group 2) who underwent ABR without recurrence. Preoperative MRAs were evaluated for risk factors for recurrence, with glenoid bone loss and Hill-Sachs lesions also measured. Multilinear and multilogistic regression models were used to evaluate factors affecting recurrence. RESULTS: Overall, 72 patients were included in this study, including 48 patients without recurrence and 24 patients with recurrent instability. There was a significant difference between the two groups in mean glenoid bone loss (Group 1: 7.3% vs. Group 2: 5.7%, p < 0.0001) and the rate of off-track Hill-Sachs lesions (Group 1: 20.8% vs. Group 2: 0%, p = 0.0003). Of the variables analysed in logistic regression, increased glenoid anteversion (p = 0.02), acromioclavicular (AC) degeneration (p = 0.03) and increased Hill-Sachs width were associated with increased risk of failure. Increased chondral version (p = 0.01) and humeral head diameter in the anteriorposterior view were found to be protective and associated with a greater likelihood of success. CONCLUSION: Glenoid anteversion was a risk factor for recurrent instability, whereas increased chondral version and humeral head diameter were associated with higher rates of success following ABR. Glenoid bone loss, presence of an off-track Hill-Sachs lesion, increased Hill-Sachs width and AC degeneration were also associated with failure. These findings should be used by surgeons to stratify risk for recurrence following ABR. LEVEL OF EVIDENCE: Level III.

No difference in clinical outcomes between operative and nonoperative management of minimally retracted proximal hamstring ruptures.

PURPOSE: The indications for surgical treatment of proximal hamstring ruptures are continuing to be refined. The purpose of this study was to compare patient-reported outcomes (PROs) between patients who underwent operative or nonoperative management of proximal hamstring ruptures. METHODS: A retrospective review of the electronic medical record identified all patients who were treated for a proximal hamstring rupture at our institution from 2013 to 2020. Patients were stratified into two groups, nonoperative or operative management, which were matched in a 2:1 ratio based on demographics (age, gender, and body mass index), chronicity of the injury, tendon retraction, and number of tendons torn. All patients completed a series of PROs including the Perth Hamstring Assessment Tool (PHAT), Visual Analogue Scale for pain (VAS), and the Tegner Activity Scale. Statistical analysis was performed using multi-variable linear regression and Mann-Whitney testing to compare nonparametric groups. RESULTS: Fifty-four patients (mean age = 49.6 ± 12.9 years; median: 49.1; range: 19-73) with proximal hamstring ruptures treated nonoperatively were successfully matched 2:1 to 27 patients who had underwent primary surgical repair. There were no differences in PROs between the nonoperative and operative cohorts (n.s.). Chronicity of the injury and older age correlated with significantly worse PROs across the entire cohort (p < 0.05). CONCLUSIONS: In this cohort of primarily middle-aged patients with proximal hamstring ruptures with less than three centimeters of tendon retraction, there was no difference in patient-reported outcome scores between matched cohorts of operatively and nonoperatively managed injuries. LEVEL OF EVIDENCE: Level III.

The Majority of Sports Medicine and Arthroscopy-Related Randomized Controlled Trials Reporting Nonsignificant Results Are Statistically Fragile.

PURPOSE: To evaluate the robustness of sports medicine and arthroscopy related randomized controlled trials (RCTs) reporting nonsignificant results by calculating the reverse fragility index (RFI) and reverse fragility quotient (RFQ). METHODS: All sports medicine and arthroscopic-related RCTs from January 1, 2010, through August 3, 2021, were identified. Randomized-controlled trials comparing dichotomous variables with a reported P value ≥ .05 were included. Study characteristics, such as publication year and sample size, as well as loss to follow-up and number of outcome events were recorded. The RFI at a threshold of P < .05 and respective RFQ were calculated for each study. Coefficients of determination were calculated to determine the relationships between RFI and the number of outcome events, sample size, and number of patients lost to follow-up. The number of RCTs in which the loss to follow-up was greater than the RFI was determined. RESULTS: Fifty-four studies and 4,638 patients were included in this analysis. The mean sample size and loss to follow-up were 85.9 patients and 12.5 patients, respectively. The mean RFI was 3.7, signifying that a change of 3.7 events in one arm was needed to flip the results of the study from non-significant to significant (P < .05). Of the 54 studies investigated, 33 (61%) had a loss to follow-up greater than their calculated RFI. The mean RFQ was 0.05. A significant correlation between RFI with sample size (R2 = 0.10, P = .02) and the total number of observed events (R2 = 0.13, P < .01) was found. No significant correlation existed between RFI and loss to follow-up in the lesser arm (R2 = 0.01, P = .41). CONCLUSIONS: The RFI and RFQ are statistical tools that allow the fragility of studies reporting nonsignificant results to be appraised. Using this methodology, we found that the majority of sports medicine and arthroscopy-related RCTs reporting nonsignificant results are fragile. CLINICAL RELEVANCE: RFI and RFQ serve as tools that can be used to assess the validity of RCT results and provide additional context for appropriate conclusions.

Elbow Ulnar Collateral Ligament Tears: A Modified Consensus Statement.

PURPOSE: To establish consensus statements on the treatment of ulnar collateral ligament (UCL) injuries and to investigate whether consensus on these distinct topics could be reached. METHODS: A modified consensus technique was conducted among 26 elbow surgeons and 3 physical therapists/athletic trainers. Strong consensus was defined as 90% to 99% agreement. RESULTS: Of the 19 total questions and consensus statements 4 achieved unanimous consensus, 13 achieved strong consensus, and 2 did not achieve consensus. CONCLUSIONS: There was unanimous agreement that the risk factors include overuse, high velocity, poor mechanics, and previous injury. There was unanimous agreement that advanced imaging in the form of either magnetic resonance imaging or magnetic resonance arthroscopy should be performed in a patient presenting with suspected/known UCL tear that plans to continue to play an overhead sport, or if the imaging study could change the management of the patient. There was unanimous agreement regarding lack of evidence for the use of orthobiologics in the treatment of UCL tears as well as the areas pitchers should focus on when attempting a course of nonoperative management. The statements that reached unanimous agreement for operative management were regarding operative indications and contraindications for UCL tears, prognostic factors that should be taken into consideration in when performing UCL surgery, how to deal with the flexor-pronator mass during UCL surgery, and use of an internal brace with UCL repairs. Statements that reached unanimous agreement for return to sport (RTS) were regarding portions of the physical examination should be considered when determining whether to allow a player to RTS; unclear how velocity, accuracy, and spin rate should be factored into the decision of when players can RTS and sports psychology testing should be used to determine whether a player is ready to RTS. LEVEL OF EVIDENCE: V, expert opinion.

The Reverse Fragility Index: Interpreting the Current Literature on Long-Term Survivorship of Computer-Navigated Versus Conventional TKA: A Systematic Review and Cross-Sectional Study of Randomized Controlled Trials.

BACKGROUND: Despite the most recent American Academy of Orthopaedic Surgeons clinical practice guideline making a "strong" recommendation against the use of intraoperative navigation in total knee arthroplasty (TKA), its use is increasing. We utilized the concept of the reverse fragility index (RFI) to assess the strength of neutrality of the randomized controlled trials (RCTs) comparing the long-term survivorship of computer-navigated and conventional TKA. METHODS: A systematic review was performed including all RCTs through August 3, 2021, comparing the long-term outcomes of computer-navigated and conventional TKA. Randomized trials with mean follow-up of >8 years and survivorship with revision as the end point were included. The RFI quantifies the strength of a study's neutrality by calculating the minimum number of events necessary to flip the result from nonsignificant to significant. The RFI at a threshold of p < 0.05 was calculated for each study reporting nonsignificant results. The reverse fragility quotient (RFQ) was calculated by dividing the RFI by the study sample size. RESULTS: Ten clinical trials with 2,518 patients and 38 all-cause revisions were analyzed. All 10 studies reported nonsignificant results. The median RFI at the p < 0.05 threshold was 4, meaning that a median of 4 events would be needed to change the results from nonsignificant to significant. The median RFQ was 0.029, indicating that the nonsignificance of the results was contingent on only 2.9 events per 100 participants. The median loss to follow-up was 27 patients. In all studies, the number of patients lost to follow-up was greater than the RFI. CONCLUSIONS: The equipoise in long-term survivorship between computer-navigated and conventional TKA rests on fragile studies, as their statistical nonsignificance could be reversed by changing the outcome status of only a handful of patients--a number that was always smaller than the number lost to follow-up. Routine reporting of the RFI in trials with nonsignificant findings may provide readers with a measure of confidence in the neutrality of the results. LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.

Increased time from injury to surgical repair in patients with proximal hamstring ruptures is associated with worse clinical outcomes at mid-term follow-up.

INTRODUCTION: Prior studies of hamstring tendon tears have reported varied findings on whether increased delay from injury to surgery is associated with worse outcomes. The purpose of this study was to determine whether increased time from injury to surgical repair is associated with worse clinical outcomes in patients with proximal hamstring ruptures. MATERIALS AND METHODS: Patients who underwent surgical repair of a proximal hamstring rupture from 2010 to 2019 were followed for a minimum of 24 months from surgery. A cutoff of 6 weeks from injury to the time of surgery was used to distinguish between acute and chronic ruptures. All patients completed patient-reported outcome measures (PROs) at the final follow-up. Multiple factors were analyzed for their effects on PROs including time to surgery, amount of tendon retraction, and demographics such as sex and age. RESULTS: Complete data sets were obtained for 38 patients at a mean follow-up of 4.9 years. All data is reported as a mean ± standard deviation. Patients who underwent acute repair of proximal hamstring ruptures had significantly greater Perth Hamstring Assessment Tool (PHAT) scores than those who underwent chronic repair (76.9 ± 18.8 vs 60.6 ± 18.2, p = 0.01). Increased time to surgery was significantly correlated with worse PHAT scores (ρ = - 0.47, p = 0.003). There was no difference in PROs based on the amount of tendon retraction, number of tendons torn, sex, smoking status, or BMI. CONCLUSIONS: This study found that acute repair performed within 6 weeks of injury appears to yield improved PROs compared to chronic repair. These data highlight the importance of timely and accurate diagnosis of proximal hamstring ruptures and early operative intervention for surgical candidates.

Return to Work After Primary Hip Arthroscopy: A Systematic Review and Meta-analysis.

BACKGROUND: Hip arthroscopy is a procedure commonly performed to correct various hip pathologies such as femoroacetabular impingement and labral tears. These hip pathologies commonly affect young, otherwise healthy patients. The recovery after hip arthroscopy can prevent patients from returning to work and impair performance levels, having significant economic repercussions. To date, there has been no cumulative analysis of the existing literature on return to work after hip arthroscopy. PURPOSE: The purpose of this study was to perform a systematic review of the existing literature regarding return to work after hip arthroscopy and analysis of factors associated with the ability to return to work and time to return to work. STUDY DESIGN: Systematic review and meta-analysis; Level of evidence, 4. METHODS: A literature search of the MEDLINE, EMBASE, and Cochrane Library databases was performed based on the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Studies assessing functional outcomes and return to work, including return to military duty, after hip arthroscopy were included. Patients' ability to return to work, as well as time to return, was compared between selected studies. Where available, workers' compensation status as well as type of work was compared. All statistical analysis was performed using SPSS, Version 22. P < .05 was considered statistically significant. RESULTS: Twelve studies with 1124 patients were included. Patients were followed for an average of 17.6 months. Using weighted means, the average rate of return to work was 71.35%, while full return to previous work duties was achieved at a rate of 50.89%. Modification to work duties was required at a rate of 15.48%. On average, the time to return to work was 115 days (range, 17-219 days). Rate of return by patients with workers' compensation status was found to be 85.15% at an average of 132 days (range, 37-211 days). Rate of return to work in workers performing professions reported as strenuous vs light (ie, mostly sedentary) jobs showed a statistically higher return to work in light professions (risk ratio, 0.53; 95% CI, 0.41-0.69). CONCLUSION: After hip arthroscopy, there is a high rate of return to work at an average of 115 days after surgery. However, full return to work was achieved by only half of patients upon final follow-up.

The tension of the iliopsoas tendon more than doubles during extension of the dysplastic hip in open reduction.

The role of the iliopsoas as an obstructing and re-dislocating factor in developmentally dislocated hips is unclear. The purpose of this article is to determine the change in the iliopsoas' tension during flexion and extension when performing an open reduction. We evaluated 34 hips undergoing an anterior open reduction for a developmental dislocation. At the time of surgery, we identified the iliopsoas, and before sectioning it as part of the open reduction, we measured the tension while cycling the reduced hip through flexion and extension. We performed statistical analysis using Pearson and Spearman correlation tests. We created an initial tension artificially at 20 N with the hip held in 90º of flexion, which then doubled to a mean of 42 N when placed in extension. We found a significant increase in tension when the hip went below 20º of flexion. We also found the correlation between the angle of the hip and the force of tension to be statistically significant ( P = 0.003). This study provides quantitative support that the tension of the iliopsoas tendon increases significantly in extension when performing an open reduction of a developmentally dislocated hip.

Characterization of pincer-type Hip impingement in professional women's ice hockey players.

OBJECTIVE: Femoroacetabular impingement (FAI) appears common in ice hockey, but there is a lack of data examining pincer-type impingement in women's ice hockey athletes. The objective of this study was to assess the prevalence of pincer-type impingement in National Women's Hockey League (NWHL) athletes. Our hypothesis was that there would be an increased prevalence of pincer impingement in these athletes. METHODS: Data were gathered for a team of NWHL players, and age, gender, and body mass index (BMI) matched controls were also retrospectively collected. All subjects were above 18 years of age. Control patients were excluded if they had undergone prior hip surgery, were greater than age 30, or had BMI greater than 35. Radiographs of both groups were assessed for lateral center edge angle (LCEA), Tönnis angle, and crossover sign. Tönnis angle <0 or LCEA >40 degrees was considered pincer morphology. An alpha angle >55 degrees was considered cam morphology. RESULTS: Thirty-seven NWHL players and 37 female controls were included. Overall 32% of the players had a pincer lesion in either hip based on LCEA, 8% had a Tönnis angle <0, and 22% had a crossover sign in either hip compared to 9%, 19%, and 13% for the controls, respectively. None of these findings were significantly different between the groups (p > 0.05). An alpha angle ≥55 degrees in either hip was found in 84% of players, but lateral Dunn images for alpha angle measurements were not available for the control group. CONCLUSIONS: Pincer-type morphology and crossover signs were present in a larger portion of NWHL players than has been reported in the general population, but these findings were not statistically different than in the control group. Cam-type morphology was even more prevalent in these athletes and may be related to age at menarche due impingement at the physis prior to closure.

Concentration of synovial fluid biomarkers on the day of anterior cruciate ligament (ACL)-reconstruction predict size and depth of cartilage lesions on 5-year follow-up.

PURPOSE: The current investigation evaluated the relationship between the synovial fluid cytokine microenvironment at the time of isolated anterior cruciate ligament (ACL) reconstruction and the presence of subsequent chondral wear and radiologic evidence of osteoarthritis (OA) on cartilage-specific MRI sequences at a minimum of 5-year follow-up. METHODS: Patients who underwent primary ACL reconstruction with no baseline concomitant cartilage or meniscal defects and had synovial fluid samples obtained at the time of surgery were retrospectively identified. Patients with a minimum of 5 years of postoperative follow-up were contacted and asked to complete patient-reported outcome (PRO) measures including Visual Analog Scale (VAS) for pain, Lysholm Scale, Knee Injury and Osteoarthritis Outcome Score (KOOS), and Tegner Activity Scale, along with postoperative magnetic resonance imaging (MRI). The concentration of ten biomarkers that have previously been suggested to play a role in cartilage degradation and inflammation in the joint space was measured. Linear regression controlling for age, sex, and body mass index (BMI) was performed to create a model using the synovial fluid concentrations at the time of surgery to predict postoperative semiquantitative cartilage lesion size and depth on MRI at a minimum of 5 years follow up. RESULTS: The patients were comprised of eight males (44.4%) and ten females (55.6%) with a mean age at the time of surgery of 30.8 ± 8.7 years (range 18.2-44.5 years). The mean follow-up time was 7.8 ± 1.5 years post-operatively (range 5.7-9.7 years). MCP-1, VEGF, and IL-1Ra were found to have significant associations with the presence of postoperative cartilage wear (p < 0.05). No correlations were demonstrated among the biomarker concentrations at the time of injury with PRO scores at final follow-up (NS). CONCLUSION: Synovial fluid inflammatory biomarker concentrations at the time of injury can predict progression of early-stage post-traumatic osteoarthritis at a mean of almost 8 years post-operatively. Findings from this study may help identify treatment targets to alter the natural history of cartilage loss following anterior cruciate ligament injury. LEVEL OF EVIDENCE: Level III, retrospective cohort study.

Poorer functional Outcomes in Patients with Multi-Ligamentous Knee Injury with Concomitant Patellar Tendon Ruptures at 5 years Follow-Up.

PURPOSE: Multi-ligamentous knee injuries (MLKIs) are high-energy injuries that may infrequently present with concomitant patellar tendon rupture. There is limited information in the literature regarding these rare presentations, with even less information regarding clinical outcomes. Using propensity-score matching, the purpose of this study was to compare the outcomes of MLKIs with and without patellar tendon ruptures and to investigate the overall predictors of these outcomes. METHODS: Twelve patients who underwent surgical repair for combined MLKI and patellar tendon rupture from 2011 to 2020 with minimum 1-year follow-up data were identified from two separate institutions. Patients were propensity-score matched with a 1:1 ratio with controls based on age, body mass index (BMI), gender, and time from surgery. Patient-reported outcomes included International Knee Documentation Committee (IKDC) Subjective Knee Form, Lysholm and Tegner scores. RESULTS: Twelve MLKIs with concomitant patellar tendon injuries were identified out of a multicenter cohort of 237 (5%) patients sustaining MLKI and were case matched 1:1 with 12 MLKIs without extensor mechanism injuries. The average follow-up was 5.5 ± 2.6 years. There were no differences in Schenck Classification injury patterns. There were significant differences found across IKDC (Patellar Tendon mean: 53.1 ± 24.3, MLKI mean 79.3 ± 19.6, P < 0.001) and Lysholm scores (Patellar Tendon mean: 63.6 ± 22.3, MLKI mean 86.3 ± 10.7, P < 0.001) between the two, illustrating poorer outcomes for patients with concomitant patellar tendon ruptures. CONCLUSION: In the setting of MLKI, patients who have a concomitant patellar tendon rupture have worse functional outcomes compared to those without. This information will be important for patient counseling and might be considered to be added to Schenck classification, reflecting its prognostic value. LEVEL OF EVIDENCE: Level IV.

Risk of Postoperative Stiffness Following Multiligamentous Knee Injury Surgery Is Not Affected by Obesity: A Multicenter Study.

PURPOSE: The purpose of this study was to examine the relationship between obesity and postoperative stiffness following surgical management of multiligamentous knee injuries (MLKIs) using a large two-center cohort, by both 1) using binary cutoffs at various body mass indexes (BMIs) and 2) a linear regression model. METHODS: 190 consecutive patients who underwent surgical management of MLKIs between January 2001 and March 2020 were reviewed at two level 1 academic trauma centers. Patient demographics, surgical characteristics, and manipulation under anesthesia (MUA)/lysis of adhesions (LOA) were reviewed. Patients were stratified by obesity grades: grade 1 (BMI 30 to <35) grade 2 (BMI 35 to <40); grade 3 (BMI >40), and compared with a nonobese comparison group with BMI <30. Multivariate logistic regressions were performed, including the covariates of age, gender, BMI, acute versus chronic injury, external fixator, vascular injury, knee dislocation, and Schenck Classification. Fisher's exact test was used to compare rate of MUA between grades of obesity. Analyses were performed with R. Statistical significance was set at P < .05. RESULTS: The mean BMI of the cohort was 29.2 kg/m2. The mean overall follow-up was 27.2 ± 7.2 months (range: 14-142 months). There were 55 (29.1%) MUA procedures observed at a mean 3.77 ± 2.18 months (range: 1.8-9.7 months) after final MLKI surgery. No significant difference was found in BMI of patients who underwent a MUA compared to patients who did not (30.2 vs 28.8; P = .67). There was no significant difference in rate or time to MUA following MLKI surgery between groups, with logistic regression demonstrating no significance (P = .144). Use of external fixation at the index surgery (OR = 3.3 [95% CI: 2.2, 4.7; P < .0001]) and vascular injury (OR = 6.2 [95% CI: 1.8, 24.5; P = .005]) were found to be independent predictors for need for MUA. CONCLUSION: No difference in risk for postoperative stiffness requiring MUA following surgery for MLKI was found based on BMI. At all BMI levels, there were no significant increase in need for postoperative MUA, suggesting at minimum a neutralizing effect of obesity on postoperative stiffness. In addition, patients with external fixator use and vascular injury at index surgery were found to be at significantly higher risk for postoperative stiffness requiring MUA following surgery for MLKI. Surgeons should be aware of the risk factors for arthrofibrosis when proceeding with surgical repair or reconstruction of two or more ligaments of the knee. LEVEL OF EVIDENCE: III, multicenter retrospective cohort study.

Posterior tibial tubercle measured by the sagittal TT-TG distance correlates with increased risk for patellofemoral chondral lesions.

PURPOSE: To evaluate the variation in tibial tubercle sagittal alignment in patients with and without patellofemoral (PF) cartilage wear. METHODS: This was a single-centre, retrospective review of patients that underwent a cartilage restoration procedure for isolated PF cartilage wear from 2014 to 2020. Patients were matched in a 1:2 ratio for age, sex and BMI to partial meniscectomy patients as controls. The sagittal TT-TG (sTT-TG) distance was measured on preoperative axial T2 magnetic resonance imaging (MRI) and was defined as the distance between a point at the nadir of the trochlear cartilage and the most anterior point of the tibial tubercle. RESULTS: One hundred and forty patients (47 cartilage restoration, 94 meniscectomy) were included. Mean age, BMI, and height for the total cohort were 34.01 ± 8.7, 26.6 ± 6.4, and 173.0 ± 17.7 respectively, with 78 males (55%) and 63 females (45%). There were no significant differences between groups for age, BMI or sex (n.s). The cartilage restoration group (- 2.5 mm ± 5.9) was found to have a significantly more posterior (negative) sTT-TG compared to the meniscectomy group (1.72 mm ± 6.7) (p < 0.001). Interrater reliability was excellent (ICC = 0.931, p < 0.001). Patients with less than - 3.4 mm sTT-TG were 2.74 times more likely to have a cartilage restoration procedure compared to those with greater than - 3.4 mm (OR 2.7, 95% CI 1.3-5.85). Patients with < - 10 mm posterior translation were 13.7× (CI 1.6-111.1) more likely to have a cartilage restoration procedure. CONCLUSION: Patients that underwent isolated cartilage restoration procedures had a significantly more posterior tibial tubercle than partial meniscectomy controls based on the sagittal TT-TG. The more posterior the tubercle, the more likely the patient had a cartilage restoration procedure. Surgeons should consider the sTT-TG measurement in patients presenting with anterior knee pain, particularly patellofemoral lesions. LEVEL OF EVIDENCE: III.

Acute Well-Leg Compartment Syndrome After Meniscal Allograft Transplantation and Revision ACL Reconstruction: A Case Report.

CASE: A 17-year-old adolescent boy presented with continued knee pain, swelling, and mechanical symptoms after anterior cruciate ligament (ACL) reconstruction with partial meniscectomy. The patient eventually underwent ACL revision surgery that was without complications. Postoperatively, the well leg grew firm with associated neurological deficits, and physical examination confirmed compartment syndrome of the lower leg compartments that resolved with emergency fasciotomy. The patient proceeded on normal postoperative course. CONCLUSION: Compartment syndrome of the well leg is a rare complication in the field of sports medicine, owing to the relatively healthy and young demographic, but providers should nonetheless be vigilant to prevent disastrous sequalae.

Female Gender Is Associated with Lower Satisfaction with Postoperative Telemedicine Visits in Sports Medicine.

Introduction: Telemedicine is a relatively new adjunct in orthopedic care but it has emerged from the periphery, driven in part by the COVID-19 pandemic. Although it has drastically increased in use, little is known of the factors that drive satisfaction with telemedicine. The purpose of the current study was to evaluate the patient's satisfaction with postoperative telemedicine visits in those undergoing knee or shoulder arthroscopy, and to analyze the factors associated with satisfaction with telemedicine. Methods: A prospective study was performed to evaluate satisfaction comparing postoperative telemedicine and in-office visits, in those undergoing shoulder and knee arthroscopy. Multiple factors were analyzed for correlation with satisfaction via multi-linear regression, including demographics such as gender, education, age, and race. Patients were also evaluated for preference for future visits with reference to the group in which they were placed. Results: Overall, 215 patients were included with a subgroup analysis of 93 patients receiving telemedicine visits. Patients reported overall similar satisfaction with telemedicine visits after shoulder and knee arthroscopy, with a high level of satisfaction seen in both. Female sex was found to be associated with decreasing satisfaction with telemedicine visits (p = 0.036). In addition, as a whole, the cohort was found to prefer future visits to be the same as the group they were placed in, but females statistically did not have this preference for their familiar group and were skewed toward the preference of in-person visits (p = 0.377). Conclusions: Our study found that female patients were less likely to be satisfied with postoperative telemedicine visits after knee or shoulder arthroscopy. Further, females were also less likely to indicate preference for future telemedicine visits. In contrast, education, history of prior surgery, age, and race were not associated with postoperative satisfaction.

Joint Hypermobility Is Associated With Increased Risk of Postoperative Iliopsoas Tendinitis After Hip Arthroscopy for Femoroacetabular Impingement.

PURPOSE: To determine whether increased joint hypermobility, quantified by the Beighton score, is associated with a greater incidence of iliopsoas tendinitis (IPT) in postoperative hip arthroscopy patients treated for femoroacetabular impingement (FAI). METHODS: We conducted a retrospective chart review of patients who underwent hip arthroscopy for labral repair and FAI from 2016 to 2020 for whom at least 12 months of follow-up data were available. The Beighton score was measured by a blinded, independent reviewer. IPT was clinically diagnosed by a sports medicine fellowship-trained orthopaedic surgeon through physical examination. Patients with a diagnosis of IPT were matched at a 1:1 ratio to controls based on age, sex, and body mass index. Demographic characteristics, radiographs and advanced imaging, surgical characteristics, and corticosteroid injection therapy data were obtained via chart review. Statistical analysis was conducted using Mann-Whitney testing and binary logistic regression. RESULTS: Forty patients in whom postoperative IPT developed were identified and matched to 40 control patients in whom postoperative tendinitis did not develop. Increased joint hypermobility, quantified by the Beighton score, was associated with an increased risk of IPT. For each 1-point increase in the Beighton score, there was a 1.69 (95% confidence interval, 1.25-2.29; P < .001) increased odds of IPT development postoperatively. A high (≥4) versus low (<4) Beighton score was associated with an increased likelihood of tendinitis (odds ratio, 9.82; 95% confidence interval, 2.79-34.58; P < .001). However, there was no association between greater Beighton scores and patients' likelihood of receiving a corticosteroid injection (P = .173). CONCLUSIONS: Increased joint hypermobility, quantified by the Beighton score, is associated with an increased risk of IPT developing in the hip arthroscopy postoperative period in patients treated for FAI and labral pathology. LEVEL OF EVIDENCE: Level III, retrospective cohort study.

High Rate of Satisfaction and Return to Play at 5-Year Follow-Up After Arthroscopic Superior-Labrum Anterior-Posterior Repairs.

PURPOSE: The purpose of this study was to evaluate the outcomes of patients 5 years postoperatively following arthroscopic SLAP repair, and to evaluate factors associated with satisfaction. METHODS: A retrospective review of patients who underwent SLAP repair with a minimum of 5-year follow-up was performed. Recurrence, visual analog scale (VAS) score, Subjective Shoulder Value (SSV), American Shoulder & Elbow Surgeons (ASES) score, satisfaction, whether they would undergo the same surgery again, and the rate, level and timing of return to play (RTP) were evaluated. Multilinear regression models were used to evaluate factors affecting postoperative satisfaction. RESULTS: Overall, 122 patients who underwent SLAP repair were included, with a mean age of 33.4 years. 81% were males, and 58.2% were participating in sport preoperatively. The mean follow-up was 86.4 ± 14.4 months. At final follow up, the mean satisfaction was 87.7%, and the mean SSV was 82.9. Overall, the rate of RTP was 85.9%, with 64.8% returning at the same level at a mean of 10.5 ± 8 months. Ultimately, 13 (10.7%) patients had a further surgery, including 10 (8.2%) patients that had a biceps tenodesis. VAS during sport (P = .025), SSV (P < .001), and time to RTP (P = .0056), were associated with higher satisfaction. CONCLUSION: There was a high rate of satisfaction at 5-year follow-up, with excellent patient-reported outcomes but with one-tenth of patients requiring revision surgeries. Additionally, while there was an overall high rate of RTP, there was only a modest rate of RTP at their preinjury level, and overhead athletes took longer to RTP. LEVEL OF EVIDENCE: IV, case series.

Analysis of Athletes Who Did Not Return to Play After Open Latarjet.

BACKGROUND: The Latarjet procedure is indicated in patients with risk factors for postoperative recurrence, including collision and competitive athletes. However, the factors that prevent athletes from being able return to play (RTP) after the open Latarjet procedure are still unclear and have not been fully elucidated in the literature. PURPOSE: To evaluate patient-reported outcomes and psychological and psychosocial factors associated with athletes who did not RTP after the open Latarjet procedure compared with patients who did RTP. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: We conducted a retrospective review of athletes who underwent the open Latarjet procedure and subsequently did not RTP after a minimum of 12 months. These patients were pair matched in a 2:1 ratio for age, sex, sport, and level of preoperative play with a control group who returned to play. Patients were evaluated for their psychological readiness to return to sport using the Shoulder Instability-Return to Sport after Injury (SIRSI); other measures included the visual analog scale (VAS) for pain and Subjective Shoulder Value (SSV). Multivariate regression models were used to evaluate factors affecting RTP. RESULTS: Included were 35 patients in the no-RTP group and 70 patients in the RTP group. In the no-RTP group, 7 patients (20%) passed the SIRSI benchmark of 56, with a mean overall score of 41.5 ± 21.9; in the RTP group, 57 patients (81.4%) passed the SIRSI benchmark, with a mean overall score of 74.5 ± 19.8 (P < .0001 for both). Patients in the RTP group had better SSV (88.0 vs 75.7; P <.0001) and VAS pain (1.7 vs 2.9; P = .0046) scores. Of the athletes who did not return, 18 felt persistent pain/apprehension and 17 felt that it was a natural end to their career or that their lifestyle had changed. Multiple logistic regression revealed that thoughts of having to go through surgery and rehabilitation again was significantly associated with lower RTP (P < .05). CONCLUSION: Patients who did not RTP after open Latarjet exhibited poor psychological readiness to RTP and worse pain VAS and SSV scores compared with patients who did RTP.

Estimated Time to Maximum Medical Improvement of Intra-articular Injections in the Treatment of Knee Osteoarthritis-A Systematic Review.

PURPOSE: The purpose of the current study is to perform a systematic review of the literature and evaluate maximum medical improvement and minimal clinically important difference (MCID) of different injectables in the treatment of symptomatic knee osteoarthritis. METHODS: A systematic review was performed to evaluate maximum medical improvement and MCID in patients undergoing injections of different modalities for knee osteoarthritis. Demographic factors of the patients being reviewed were analyzed, with patient-reported outcomes as reported by visual analog scale (VAS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) being used to evaluate the clinical trajectory of patients receiving intra-articular injections. RESULTS: Overall, 79 (level of evidence I: 79) studies met inclusion criteria, with 8761 patients. Corticosteroid (CS) injections, middle molecular weight hyaluronic acid (MMW-HA), and leukocyte-rich platelet rich plasma (LR-PRP) injections reached their maximum pain control at 4 to 6 weeks after injection, as measured by VAS. The lowest VAS scores were reached for low molecular weight hyaluronic acid (LMW-HA), high molecular weight hyaluronic acid (HMW-HA), and leukocyte-poor platelet rich plasma (LP-PRP) by 3 months after injection. Similarly, the WOMAC scores were lowest at 4 to 6 weeks after CS and MMW-HA injections, and at 3 months after HMW-HA and LP-PRP injections. LR-PRP demonstrated the most prolonged pain relief relative to the other injection types, with the lowest VAS score of all groups measured at final follow-up. LP-PRP showed the lowest WOMAC scores at final follow-up, one year post-injection. CONCLUSION: PRP injections provide continued pain relief at up to 1 year after injection. Corticosteroids and hyaluronic acid have good efficacy and are suitable for many patients but lack this longevity. LEVEL OF EVIDENCE: Level I, a systematic review of Level I studies.