Association of Emergency Department Evaluation With Public Insurance Use and Treatment Delays for ACL Injury.

Background: Utilization of an emergency department (ED) visit for anterior cruciate ligament (ACL) injury is associated with high cost and diagnostic unreliability. Hypothesis: Patients initially evaluated at an ED for an ACL injury would be more likely to be from a lower income quartile, use public insurance, and experience a delay in treatment. Study Design: Cohort study; Level of evidence, 3. Methods: Patients in the Rhode Island All Payers Claims Database who underwent ACL reconstruction (ACLR) between 2012 and 2021 were identified using the Current Procedure Terminology (CPT) code 29888. Patients were stratified into 2 cohorts based on CPT codes for ED or in-office services within 1 year of ACLR. A chi-square analysis was used to test for differences between cohorts in patient and surgical characteristics. Multivariable linear and logistic regression were used to determine how ED evaluation affected timing and outcome variables. Results: While adjusting for patient and operative characteristics, patients in the ED cohort were more likely to have Medicaid (29% vs 12.5%; P < .001) and be in the lowest income quartile (44.6% vs 32.1%; P < .001). ED visit and Medicaid status were associated with increased time to (1) diagnostic magnetic resonance imaging, adding 7.97 days on average (95% CI, 4.14-11.79 days; P < .001) and 8.40 days (95% CI, 3.44-13.37 days; P = .001), respectively; and (2) surgery, adding 20.30 days (95% CI, 14.10-26.49 days; P < .001) and 12.88 days (95% CI, 5.15-20.60 days; P = .001), respectively. Patients >40 years who were evaluated in the ED were 2.5 times more likely to require subsequent ACLR (odds ratio, 2.50 [95% CI, 1.01-6.21]; P = .049). Conclusion: In this study, patients who visited the ED within 1 year before ACLR were more likely to have a lower income, public insurance, increased time to diagnostic imaging, and increased time to surgery, as well as decreased postoperative physical therapy use and increased subsequent ACLR rates in the 40-49 years age-group.

The effect of pre-operative shoulder injections on post-operative opioid use, infection and revision following shoulder arthroplasty.

Background: Treatment of glenohumeral osteoarthritis (GHOA) may include conservative management with use of intraarticular injections, prior to considering total shoulder arthroplasty (TSA). The purpose of this study was to assess trends in the use of preoperative cortisone (CO) and hyaluronic acid (HA) injections, as well as investigate the relationship between injection use and infection or revision arthroplasty following TSA. Methods: Pearl Driver was used to identify all patients undergoing TSA for GHOA between 2010 and 2018. Patients were categorized based on the type and number of injections they received. Outcomes of interest included post-operative opioid use, post-operative infection, and risk of revision surgery within 1 year of the index procedure. Results: The incidence of patients receiving a CO or HA injections within 1 year of their TSA decreased by 83% and 54%, respectively. Patients who had received 1 or more steroid injections had higher odds of prolonged opiate use following surgery. Patients that received 1 or 2 CO injection prior to TSA had an increased risk of needing revision surgery. Discussion: Use of intraarticular injections for the management of GHOA has declined. Patients receiving preoperative injections had increased odds of prolonged opiate use and the need for revision surgery.

Trends in the surgical treatment of posterior shoulder instability in the United States from 2016 to 2020.

Background: The purpose of this study was to describe trends in the incidence of open versus arthroscopic management of posterior shoulder instability (PSI) as well as the patients undergoing these procedures in the United States over time. Methods: The PearlDiver Patient Records Database was utilized for this study. Cases of PSI and surgery were identified via the appropriate ICD-10-CM and CPT codes. Linear regression and two-sample Student's t-test were used to analyze incidence rates, procedure type, number of instability events, and patient age. Results: A total of 5655 patients were identified as having PSI, undergoing a total of 686 capsulorraphies. The incidence of PSI treated surgically increased across the years of the study at a rate of 0.0293 per 100,000 person-years with an incidence in 2019-2020 greater than in 2016-2018 (p = 0.0151). Patients undergoing arthroscopic capsulorrhaphy were on average younger than those undergoing open capsulorrhaphy (p = 0.0021). Patients experienced a higher number of posterior instability events before open surgery compared to arthroscopic (p = 0.0274). Discussion: The incidence of surgical treatment of PSI in the United States is steadily rising, with greater than 90% of cases being treated arthroscopically. Those undergoing arthroscopic posterior stabilization are both younger and face fewer instability events prior to surgery.

Lack of Consensus in Rehabilitation Protocols After Posterior Shoulder Stabilization.

Background: Posterior shoulder instability is being identified and treated more frequently by orthopaedic providers. After posterior shoulder stabilization, long-term outcomes in function and mobility are largely dependent on the postoperative rehabilitation period. Thus, it is important to assess the consistency between protocols at different institutions. Purpose/Hypothesis: The purpose of this study was to investigate the variability among rehabilitation protocols published by academic orthopaedic programs and their affiliates. It was hypothesized that there would be little consistency in the duration of immobilization, timing of functional milestones, and start dates of various exercises. Study Design: Cross-sectional study. Methods: Rehabilitation protocols after posterior shoulder stabilization that were published online from Accreditation Council for Graduate Medical Education (ACGME)-accredited orthopaedic surgery programs and their affiliates were evaluated for recommendations on immobilization, exercises, activities, range of motion (ROM), and return-to-sport goals. Results: Of the 204 ACGME-accredited orthopaedic surgery programs, 22 programs and 17 program affiliates had publicly available rehabilitation protocols that were included for review. There were 37 programs (94.9%) that recommended the use of sling immobilization for a mean of 4.7 ± 1.8 weeks postoperatively. Active ROM of the elbow, wrist, and hand was the most common early ROM exercise to be recommended (36 programs; 92.3%). The goal of 90° passive external rotation demonstrated the widest range of recommended start dates (0-12 weeks postoperatively). Late ROM exercises and start dates varied between protocols, with the largest standard deviation found in achieving full active ROM (13.5 ± 3.6 weeks). Resistance exercises showed a wide range of recommended start dates. Bench presses and push-ups began, on average, at 13.1 ± 3.4 and 15.3 ± 3.2 weeks, respectively. Return to sport was recommended at 21.7 ± 3.6 weeks. Conclusion: There was a high level of variability in postoperative rehabilitation protocols after posterior shoulder stabilization among orthopaedic programs and their affiliates, suggesting that a standard protocol for rehabilitation has yet to be established.

The Relationship Between Testosterone Therapy and Rotator Cuff Tears, Repairs, and Revision Repairs.

INTRODUCTION: The purpose of this study was to evaluate rates of rotator cuff tears (RCTs), repairs (RCRs), and revision RCR in patients who were prescribed testosterone replacement therapy (TRT) and compare these patients with a control group. METHODS: The PearlDiver database was queried for patients who were prescribed testosterone for at least 90 days between 2011 and 2018 to evaluate the incidence of RCTs in this population. A second analysis evaluated patients who sustained RCTs using International Classification of Diseases, 9th/10th codes to evaluate these patients for rates of RCR and revision RCR. Chi square analysis and multivariate regression analyses were used to compare rates of RCTs, RCR, and subsequent or revision RCR between the testosterone and control groups, with a P -value of 0.05 representing statistical significance. RESULTS: A total of 673,862 patients with RCT were included for analysis, and 9,168 of these patients were prescribed testosterone for at least 90 days before their RCT. The TRT group had a 3.6 times greater risk of sustaining an RCT (1.14% versus 0.19%; adjusted odds ratio (OR) 3.57; 95% confidence interval (CI) 3.57 to 3.96). A 1.6 times greater rate of RCR was observed in the TRT cohort (TRT, 46.4% RCR rate and control, 34.0% RCR rate; adjusted OR 1.60; 95% CI 1.54 to 1.67). The TRT cohort had a 26.7 times greater risk of undergoing a subsequent RCR, irrespective of laterality, within 1 year of undergoing a primary RCR when compared with the control group (TRT, 47.1% and control, 4.0%; adjusted OR 26.4; 95% CI 25.0 to 27.9, P < 0.001). CONCLUSIONS: There is increased risk of RCTs, RCRs, and subsequent RCRs in patients prescribed testosterone. This finding may represent a musculoskeletal consequence of TRT and is important for patients and clinicians to understand. Additional research into the science of tendon injury in the setting of exogenous anabolic steroids remains of interest. LEVEL OF EVIDENCE: Level Ⅲ, retrospective cohort study.

Public Insurance Is Associated With Decreased Rates of Surgical Management for Glenohumeral Instability: An Analysis of the Rhode Island All-Payers Claims Database.

Background: Socioeconomic status has been shown to influence patients' ability to access health care. Purpose: To evaluate the socioeconomic status and/or insurance provider of patients and to determine whether these differences influence the management of shoulder instability. Study Design: Descriptive epidemiology study. Methods: The Rhode Island All-Payers Claims Database (APCD) was used to identify all patients between the ages of 5 and 64 years who made an insurance claim related to a shoulder instability event between January 1, 2011, and December 31, 2019. Chi-square analysis and multivariate logistic regression were utilized to determine whether insurance status, social deprivation index (SDI), or median income by zip code were significant predictors of treatment methodology and recurrent instability. Kaplan-Meier failure analysis and Cox regression were used to assess for variation in the cumulative rates of surgical intervention and recurrent instability over 20-year age groups (5-24, 25-44, and 45-64 years). Results: There were 3310 patients from the APCD query included in the analysis. Bivariate analysis demonstrated significant variation in the rates of surgical stabilization between patients with public and commercial insurance providers (P < .001). Patients with public insurance received surgery 1.8% of the time compared with 5.8% of the time in patients with commercial insurance. After controlling for recurrent instability, age, instability type (subluxation or dislocation) and directionality, and sex, patients with public insurance were 79% less likely to receive surgery within 30 days (P = .035) and 64% less likely to receive surgery within 1 year (P = .002). This disparity was most notable in the 5- to 24-year (hazard ratio [HR] = 0.28; 95% CI, 0.13-0.61) and 25- to 44-year (HR = 0.26; 95% CI, 0.08-0.89) age groups. Neither SDI quartile nor income quartile based on patient primary zip code had a clinically significant influence on rates of surgery or recurrent instability. Conclusion: These data demonstrate that patients with public insurance have a decreased likelihood of undergoing surgical stabilization to address glenohumeral instability compared with patients with commercial insurance.

Increased Risk of Periprosthetic Fractures and Revision Arthroplasty in Patients Undergoing Shoulder Arthroplasty With a History of Prior Fragility Fractures: A Matched Cohort Analysis.

INTRODUCTION: As rates of anatomic and reverse total shoulder arthroplasty (SA) continue to grow, an increase in the number of osteoporotic patients undergoing SA, including those who have sustained prior fragility fractures, is expected. The purpose of this study was to examine short-term, implant-related complication rates and secondary fragility fractures after SA in patients with and without a history of fragility fractures. METHODS: A propensity score-matched retrospective cohort study was done using the PearlDiver database to characterize the effect of antecedent fragility fractures in short-term complications after SA. Rates of revision SA, periprosthetic fractures, infection, and postoperative fragility fractures were evaluated using multivariate logistic regression analysis. Risks of these complications were also studied in patients with and without preoperative osteoporosis treatment. Statistical significance was set at P < 0.05. RESULTS: A total of 91,212 SA patients were identified, with 13,050 (14.3%) experiencing a fragility fracture within the 3 years before SA. Two years after SA, there were increased odds of periprosthetic fracture (odds ratio [OR] 2.24, 95% confidence interval [CI] 1.68 to 2.99), fragility fracture (OR 9.11, 95% CI 8.43 to 9.85), deep infection (OR 1.68, 95% CI 1.34 to 2.12), and all-cause revision SA (OR 1.68, 95% CI 1.44 to 1.96) within those patients who had experienced a fragility fracture within 3 years before their SA. Patients who were treated for osteoporosis with bisphosphonates and/or vitamin D supplementation before their SA had similar rates of postoperative periprosthetic fractures, fragility fractures, and all-cause revision SA to those who did not receive pharmacologic treatment. CONCLUSION: Sustaining a fragility fracture before SA portends substantial postoperative risk of periprosthetic fractures, infection, subsequent fragility fractures, and all-cause revision SA at the 2-year postoperative period. Pharmacotherapy did not markedly decrease the rate of these complications. These results are important for surgeons counseling patients who have experienced prior fragility fractures on the risks of SA.

The Effect of Early versus Late Manipulation Under Anesthesia on Opioid Use, Surgical Complications, and Revision Following Total Knee Arthroplasty.

Previous studies of early versus late manipulation under anesthesia (MUA) do not report on postoperative opioid utilization or revisions and focused on small single-institution retrospective cohorts. The PearlDiver Research Program (www.pearldiverinc.com), which uses an all-inclusive insurance database, was used to identify patients undergoing primary total knee arthroplasty (TKA) who received (1) late MUA (>12 weeks), (2) early MUA (≤12 weeks), or (3) TKA only. To develop the control group cohort of TKA-only patients, 3:1 matching was conducted using 11 risk factor variables deemed significant by chi-squared analysis. Complications and opioid utilization were compared through multivariate regression analysis, controlling for age, gender, and Charlson Comorbidity Index. The risk of TKA revision was assessed through Cox-proportional hazards modeling and Kaplan-Meier survival analysis with log-rank test. Between 2011 and 2017, 2,062 TKA patients with early MUA, 1,112 TKA patients with late MUA, and a control cohort of 8,327 TKA-only patients were identified in the database. The percent of patients registering opioid use decreased from 54.6% 1 month pre-MUA to 4.6% (p < 0.0001) 1 month post-MUA following early MUA, whereas only from 32.6 to 10.4% (p < 0.0001) following late MUA. Late MUA was associated with higher risk of repeat MUA at 6 months (adjusted odds ratio [aOR] = 2.74, p < 0.0001), 1 year (aOR = 2.66, p < 0.0001), and 2 years (aOR = 2.63, p < 0.0001) following index MUA. Hazards modeling and survival analysis showed increased risk of TKA revision following late MUA (adjusted hazard ratio [aHR] = 3.50, 95% confidence interval [CI]: 2.77-4.43, p < 0.0001) compared to early MUA (aHR = 2.15, 95% CI: 1.72-2.70, p < 0.0001), with significant differences in survival to revision curves (p < 0.0001). When compared to early MUA at 1 year, late MUA was associated with a significantly increased risk of prosthesis explantation (aOR = 2.89, p = 0.0026 vs. aOR = 0.93, p = 0.8563). MUA within 12 weeks after index TKA had improved pain resolution and significant curtailing of opioid use. Furthermore, late MUA was associated with prolonged opioid use, increased risks of revision, as well as prosthesis explantation, supporting screening and early intervention in cases of slow progression and stiffness. The level of evidence of this study is III.

Do Patient Demographic and Socioeconomic Factors Influence Surgical Treatment Rates After ACL Injury?

INTRODUCTION: Anterior cruciate ligament (ACL) injuries may be managed nonoperatively in certain patients and injury patterns; however, complete ACL ruptures are commonly reconstructed to restore anterior and lateral rotatory stability of the knee. While ACL reconstruction is well-studied, the literature is sparse with regard to which socioeconomic patient factors are associated with patients undergoing ACL reconstruction rather than nonoperative management after diagnosis of an ACL injury. The current study seeks to evaluate this relationship between patient demographics as well as socioeconomic factors and the rate of surgery following ACL injuries. METHODS: Patients ≤65 years of age with a primary ACL injury between 2011 and 2018 were retrospectively identified in the New York Statewide Planning and Research Cooperative System database. International Classification of Disease 9/10 and Current Procedural Terminology codes were used to identify these patients and their subsequent ACL reconstructions. Logistic regression was performed to determine the effect of patient factors on the likelihood of having surgery after the diagnosis of an ACL injury. RESULTS: Compared to White patients, African American patients were significantly less likely to undergo ACL reconstruction following an ACL injury (OR=0.65, 95% CI, 0.573-0.726). Patients older than 35 had decreased odds of undergoing ACL reconstruction compared to younger patients, with patients 55-64 having the lowest odds (OR=0.166, 95% CI, 0.136-0.203). Patients with Medicaid (OR=0.84, 95% CI, 0.757-0.933) or self-pay insurance (OR=0.67, 95% CI, 0.565-0.793), and those with worker's compensation (OR=0.715, 95% CI, 0.621-0.823) had decreased odds of undergoing ACL reconstruction relative to patients with private insurance. Patients with higher Social Deprivation Index (SDI) were significantly more likely to be treated nonoperatively after ACL injuries compared to those with lower SDI (mean nonoperative SDI score, 61, operative SDI, 56, P<0.0001). DISCUSSION: In patients with ACL injuries, there are socioeconomic and patient-related factors that are associated with increased odds of undergoing ACL reconstruction. These factors are important to recognize as they represent a source of potential inequality in access to care and an area with potential for improvement.

Chronic Obstructive Pulmonary Disease Associated with Prolonged Opiate Use, Increased Short-Term Complications, and the Need for Revision Surgery following Total Knee Arthroplasty.

Chronic obstructive pulmonary disease (COPD) is a condition which causes a substantial burden to patients, physicians, and the health care system at large. Medical comorbidities are commonly associated with adverse health outcomes in the postoperative period. Here, we present a large database review of patients undergoing total knee arthroplasty (TKA) to determine the effect of COPD on patient outcomes. The PearlDiver database was queried for all patients who underwent TKA between 2007 and the first quarter of 2017. Medical complications, surgical complications, 30-day readmission rates, revision rates, and opioid utilization were assessed at various intervals following TKA among patients with and without COPD. Multivariable regression was used to calculate adjusted odds ratios controlling for age, sex, and medical comorbidities. A total of 46,769 TKA patients with COPD and 120,177 TKA patients without COPD were studied. TKA patients with COPD experienced increased risk of 30-day readmission (40.8% vs. 32.2%, p < 0.0001), 30-day total medical complications (10.2% vs. 7.0%, p < 0.0001), prosthesis explanation at 6 months (0.4% vs. 0.2, p = 0.0130), 1 year (0.6% vs. 0.3%, p = 0.0005), and 2 years (0.8% vs. 0.5%, p = 0.0003), as well as an increased rate of revision (p < 0.0046) compared to TKA patients without COPD. Opioid utilization of TKA patients with COPD was greater significantly than that of TKA patients without COPD at 3, 6, and 12 months. Patients with COPD have an increased risk for medical and surgical complications, readmission, and prolonged opioid use following TKA.

Short-term outcomes following open gluteus maximus transfer for the management of hip abductor tears.

Tears of the gluteus medius and minimus are an important cause of recalcitrant greater trochanteric pain syndrome. Although endoscopic and open abductor repairs have demonstrated promising outcomes, the success of these techniques is dependent on the size of the tear and the quality of the tissue. In patients presenting with abductor insufficiency and evidence of previous repair failure, large retracted tears, muscle atrophy and/or fatty infiltration, reconstruction/augmentation techniques should be considered. In the present study, we present a retrospective cohort study assessing patient outcomes following open gluteus maximus transfer for irreparable or severely retracted gluteus medius tears. Patients were included in the present study if they underwent open gluteus maximus transfer to address hip abductor tears that a senior surgeon deemed irreparable or at high risk for failure following isolated repair secondary to the following tear characteristics: large tears with >2 cm of retraction, the presence of extensive fatty infiltration (Goutallier Grade 3 or greater) and/or patients requiring revision abductor repair due to primary repair failure with associated pain and a Trendelenburg gait. Patients undergoing a concomitant, or those with a previous history of hip arthroplasty, were excluded from the study. All participants were prospectively enrolled in the study, and both pre- and post-operative patient-reported outcomes were collected at 6 months and 1 year including the modified Hip Harris Score, Visual Analog Score, Hip Outcomes Score of Activities Daily Living, Hip Outcomes Score for Sports-Related Activities and Overall Satisfaction with Hip. Pre-operative scores were compared with post-operative assessments using Student's t-test with a significance level of P < 0.05. Twenty-one patients and 22 hips were included. The average age was 69 (SD ±9.2) and 17 (81%) were females. The average body mass index was 30.0 (±6.2). The outcome scores at both 6 months and 1 year demonstrated significant improvements compared with pre-operative functional assessment. This article reports the utility of gluteus medius/minimus repair augmentation or reconstruction via gluteus maximus transfer demonstrating improvement in patient-reported outcomes at short-term follow-up.

Trends in operative duration of total shoulder arthroplasty from 2008 to 2018: a national database study.

Background: As total shoulder arthroplasty has emerged as the fastest growing joint replacement performed, optimizing surgical efficiency and patient outcomes is essential. The goals of the current study were to identify trends and factors affecting the operative time of total shoulder arthroplasty over a 10-year period. Methods: The National Surgical Quality Improvement Program database was analyzed to determine the operative time and 30-day complications of total shoulder arthroplasty from 2008 to 2018. Factors affecting total shoulder arthroplasty operative time were also assessed. Multivariable linear regression was used to analyze operative time over years studied while controlling for patient demographics and comorbidities. Results: A total of 20,587 total shoulder arthroplasty cases from 2008 to 2018 were included. Mean operative time in 2008 was 139.0 min, while in 2018, mean operative time decreased to 105.6 min (P < .001). Male sex, outpatient surgery, increased body mass index, and low preoperative hematocrit were associated with longer operative times, while elevated international normalized ratio, resident involvement, and elective surgeries were associated with decreased operative duration. Discussion: Operative time for total shoulder arthroplasty has decreased from 2008 to 2018. Patient factors and comorbidities are associated with operative time, and such factors are important to consider in operative planning to ensure appropriate patient and surgeon expectations.

Characterization of Shoulder Instability in Rhode Island: Incidence, Surgical Stabilization, and Recurrence.

PURPOSE: To characterize shoulder instability within the state of Rhode Island from 2011 to 2019. METHODS: The Rhode Island All-Payer Claims Database (APCD) was used to identify all patients that make an insurance claim related to a shoulder instability event. All patients in the APCD with an ICD-9 code of 718.31, 718.32, or 831.00 through 831.19 or an ICD-10 code of S43.001 through S43.086 or M24.41 through M25.319 between January 1, 2011 and December 31, 2019 were selected. Chi-square analysis was used to compare age- and sex-delimited subgroups; multivariate logistic regression was used to assess for factors influencing rates of surgical intervention and recurrent instability; and Kaplan-Meier failure and log-rank analyses was used to analyze variation in the time to surgery and recurrence between age-delimited subgroups. RESULTS: The incidence of overall shoulder instability (subluxations and dislocations) in Rhode Island was 62.20 instability events (95% CI, 60.61-63.78) per 100,000 person-years. The incidence of dislocations and subluxations were 49.46 injuries (95% CI, 48.05-50.88) and 12.73 injuries (95% CI, 12.02-13.45) per 100,000 person-years, respectively. Bivariate analysis demonstrated that male patients had significantly increased rates of surgical stabilization (6.36% vs. 2.80%) and recurrent instability (16.30% vs. 9.85%) compared to their female counterparts. However, after controlling for age at the primary instability event and the type and directionality of the instability, the difference in recurrence rates between males and females is no longer statistically significant (p = 0.326). Contrary to sex, age maintained its significance with those patients aged 20 and younger and 21-40 years at significantly increased odds of surgical stabilization (3.12 and 1.99, respectively) and experiencing a recurrent instability event (3.96 and 2.77, respectively). CONCLUSION: These data characterize the epidemiology of shoulder instability within the state of Rhode Island and demonstrate how increasing age at a primary instability event decreases the likelihood of both surgical stabilization and rates of recurrence.

Successful Fracture Healing for Femoral Neck Nonunion with Bone Marrow Aspirate Concentrate.

INTRODUCTION: Femoral neck fractures in the young patient require prompt anatomic reduction and stabilization to preserve the vascular supply to the femoral head and minimize future need for arthroplasty. Secondary to unique biomechanical and vascular considerations, these injuries are prone to nonunion. CASE REPORT: A 29-year-old male with a chronic femoral neck fracture nonunion who experienced successful fracture healing and symptom resolution following Bone Marrow Aspirate Concentrate (BMAC) administration. DISCUSSION: Femoral neck nonunion in young patients is a challenging problem with treatment strategies aimed at improving the biological and biomechanical fracture environment. While the use of both vascularized and nonvascularized bone grafting has shown promising results, they have high complication rates and substantial donor site morbidity. BMAC has demonstrated multiple uses throughout orthopedic surgery and may result in an improved fracture healing environment with minimal patient morbidity. CONCLUSION: The success of the BMAC procedure for this patient is promising and may be considered in similar patients, with or without revision internal fixation methods.

Uncemented Collared Femoral Stems in Total Hip Arthroplasty.

The procedure of total hip arthroplasty (THA) is rapidly evolving. Patients undergoing THA are younger and more active, and they demand an earlier return to their daily activities. All of these factors increase both the early forces on uncemented femoral stems and the risk for complications. Consequently, surgeons must choose implants that provide immediate primary stability. This has led to renewed interest in the use of uncemented collared stems, which have benefits including increased primary stability, decreased risk of subsidence and periprosthetic fracture, and improved load transfer to the proximal femur. [Orthopedics. 2022;45(3):e122-e126.].

Outpatient Operative Management of Pediatric Supracondylar Humerus Fractures: An Analysis of Frequency, Complications, and Cost From 2009 to 2018.

BACKGROUND: In an effort to increase the value of health care in the United States, there has been increased focus on shifting certain procedures to an outpatient setting. While pediatric supracondylar humerus fractures (SCHFs) have traditionally been treated in an inpatient setting, recent studies have investigated the safety and efficiency of outpatient surgery for these injuries. This retrospective study aims to examine ongoing trends of outpatient surgical care for SCHFs, examine the safety and complication rates of these procedures, and investigate the potential cost-savings from this shift in care. METHODS: Pediatric patients less than 13 years old who underwent surgery for closed SCHF from 2009 to 2018 were identified using International Classification of Diseases-9/10 Clinical Modification and Procedural Classification System codes in the New York Statewide Planning and Research Cooperative System (SPARCS) database. Linear regression was used to assess the shift in proportion of outpatient surgical management of these injuries over time. Multivariable Cox proportional hazards regression was used to compare return to emergency department (ED) visit, readmission, reoperation, and other adverse events. A 2-sample t test was performed on the average charge amount per claim for inpatient versus outpatient surgery. RESULTS: A total of 8488 patients were included in the analysis showing there was a statistically significant shift towards outpatient management between 2009 (23% outpatient) and 2018 (59% outpatient) (P<0.0001). Relative to inpatient surgical management, outpatient surgical management had lower rates of return ED visits at 1 month (hazard ratio: 0.744, P=0.048). All other adverse events compared across inpatient and outpatient surgical management were not significantly different. The median amount billed per claim for inpatient surgeries was significantly higher than for outpatient surgeries ($16,097 vs. $9,752, P<0.0001). White race, female sex, and weekday ED visit were associated with increased rate of outpatient management. CONCLUSIONS: This study demonstrates the trend of increasing outpatient surgical management of pediatric SCHF from 2009 to 2018. The increased rate of outpatient management has not been associated with elevated complication rates but is associated with significantly reduced health care charges. LEVEL OF EVIDENCE: Level III-retrospective cohort.

Predictors of Surgery and Cost of Care Associated with Patellar Instability in the Pediatric and Young Adult Population.

PURPOSE: To determine how patient demographics, socioeconomic status, history of recurrence, and initial point of presentation for health care influenced the decision for surgical treatment following a patellar instability episode. METHODS: The New York SPARCS database from 2016 to 2018 was queried for patients aged 21 and younger who were diagnosed with a patellar instability episode. These were linked to later surgeries with Current Procedural Terminology (CPT) codes 27405 (MPFL repair), 27418 (tibial tubercle osteotomy), 27420 (dislocating patella reconstruction), 27422 (Campbell/Roux-Goldthwait procedure), and 27427 (extra-articular knee ligamentous reconstruction). χ2-analysis and binary logistic regression were used to assess demographic and injury-specific variables for association with operative management. A generalized linear model was used to estimate charges associated with patellar instability. RESULTS: There were 2,557 patients with patellar instability, 134 (5.2%) of whom underwent surgery. Patients with recurrent instability had 1.875 times higher odds of undergoing surgery (P = .017). Compared to white patients, black patients had 0.428 times the odds of surgery (P = .004). None of the patients without insurance had surgery. In the cost model, an initial visit to an outpatient office was associated with $1,994 lower charges compared to an emergency department (ED) visit (P < .001). Black patients had $566 more in charges than White patients (P = .009). Compared with nonoperative treatment, surgeries with CPT 27405 added $13,124, CPT 27418 added $10,749, CPT 27422 added $18,981, CPT 27420 added $23,700, and CPT 27427 added $25,032 (all P < .001). CONCLUSIONS: Patients with recurrent instability had higher odds of surgery, while Black and uninsured patients had lower odds of surgery. ED visits were associated with significantly higher charges compared to office visits, and Black patients had higher charges than white patients. Minority and uninsured patients may face barriers in access to orthopedic care. LEVEL OF EVIDENCE: Level III, retrospective cohort study.

Total Hip Arthroplasty After Hip Arthroscopy Has Increased Complications and Revision Risk.

BACKGROUND: There has been an increase in hip arthroscopy (HA) over the last decade. After HA, some patients may ultimately require a total hip arthroplasty (THA). However, there is a scarcity of research investigating the outcomes in patients undergoing THA with a history of ipsilateral HA. METHODS: The PearlDiver research program (www.pearldiverinc.com) was queried to capture all patients undergoing THA between 2015 and 2020. Propensity matching was performed to match patients undergoing THA with and without a history of ipsilateral THA. Rates of 30-day medical complications, 1-year surgical complications, and THA revision were compared using multivariate logistic regression. Kaplan-Meier analysis was conducted to estimate survival probabilities of each of the groups with patients undergoing THA . RESULTS: After propensity matching, cohorts of 1940 patients undergoing THA without prior HA and 1940 patients undergoing a THA with prior HA were isolated for analysis. The mean time from HA to THA was 1127 days (standard deviation 858). Patients with a history of ipsilateral HA had an increased risk for dislocation (odds ratio [OR] 1.56, P = .03) and overall decreased implant survival within 4 years of undergoing THA (OR 1.53; P = .05). Furthermore, our data demonstrate the timing of previous HA to be associated with the risk of complications, as illustrated by the increased risk for dislocation (OR 1.75, P = .03), aseptic loosening (OR 2.18, P = .03), and revision surgery at 2 (OR 1.92, P = .02) and 4 years (OR 2.05, P = .01) in patients undergoing THA within 1 year of HA compared twitho patients undergoing THA more than 1 year after HA or with no previous history of HA. CONCLUSION: Patients undergoing THA after HA are at an increased risk for surgical complications, as well as the need for revision surgery.

Risk Factors for Failure After Anterior Cruciate Ligament Reconstruction in a Pediatric Population: A Prediction Algorithm.

BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) in pediatric patients is becoming increasingly common. There is growing yet limited literature on the risk factors for revision in this demographic. PURPOSE: To (1) determine the rate of pediatric revision ACLR in a nationally representative sample, (2) ascertain the associated patient- and injury-specific risk factors for revision ACLR, and (3) examine the differences in the rate and risks of revision ACLR between pediatric and adult patients. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: The PearlDiver patient record database was used to identify adult patients (age ≥20 years) and pediatric patients (age <20 years) who underwent primary ACLR between 2010 and 2015. At 5 years postoperatively, the risk of revision ACLR was compared between the adult and pediatric groups. ACLR to the contralateral side was also compared. Multivariate logistic regression was used to determine the significant risk factors for revision ACLR and the overall reoperation rates in pediatric and adult patients; from these risk factors, an algorithm was developed to predict the risk of revision ACLR in pediatric patients. RESULTS: Included were 2055 pediatric patients, 1778 adult patients aged 20 to 29 years, and 1646 adult patients aged 30 to 39 years who underwent ACLR. At 5 years postoperatively, pediatric patients faced a higher risk of revision surgery when compared with adults (18.0 % vs 9.2% [adults 20-29 years] and 7.1% [adults 30-39 years]; P < .0001), with significantly decreased survivorship of the index ACLR (P < .0001; log-rank test). Pediatric patients were also at higher risk of undergoing contralateral ACLR as compared with adults (5.8% vs 1.6% [adults 20-29 years] and 1.9% [adults 30-39 years]; P < .0001). Among the pediatric cohort, boys (odds ratio [OR], 0.78; 95% CI, 0.63-0.96; P = .0204) and patients >14 years old (OR, 0.62; 95% CI, 0.45-0.86; P = .0035) had a decreased risk of overall reoperation; patients undergoing concurrent meniscal repair (OR, 1.84; 95% CI, 1.43-2.38; P < .0001) or meniscectomy (OR, 2.20; 95% CI, 1.72-2.82; P < .0001) had an increased risk of revision surgery. According to the risk algorithm, the highest probability for revision ACLR was in girls <15 years old with concomitant meniscal and medial collateral ligament injury (36% risk of revision). CONCLUSION: As compared with adults, pediatric patients had an increased likelihood of revision ACLR, contralateral ACLR, and meniscal reoperation within 5 years of an index ACLR. Families of pediatric patients-especially female patients, younger patients, and those with concomitant medial collateral ligament and meniscal injuries-should be counseled on such risks.

Socioeconomic and Demographic Disparities in Early Surgical Stabilization Following Emergency Department Presentation for Shoulder Instability.

PURPOSE: To describe which patients are the most likely to undergo surgical management within the same calendar year as their emergency department visit for anterior shoulder instability. METHODS: The State Emergency Department Databases and State Ambulatory Surgery and Services Databases from Florida were used. All patients presenting to the emergency department for anterior shoulder subluxation or dislocation between January 1 and September 30, 2017, were selected. Bivariate analysis was performed for associations with demographic variables. A binary logistic regression was performed with all significant factors to assess which were predictors of undergoing surgery the same calendar year. RESULTS: While controlling for all significant factors, we found that patients with recurrent dislocations were 3.14 times more likely to have surgery within the same year (P = .037). Patients younger than 40 years were also 2.04 times more likely to have surgery than those aged 40 years or older (P < .001). White patients were 2.47 times more likely to have surgery than black patients (P < .001). On bivariate analysis, there was an association between greater income quartile and higher odds of undergoing surgery within 30 days. CONCLUSIONS: Following an emergency department visit for acute shoulder instability, the following variables were associated with undergoing surgical stabilization within the same calendar year: previous dislocation, age younger than 40, and white race. Patients living in the greatest income quartile of patients had a significantly greater percentage of patients having surgery within 30 days. This demonstrates that disparities and barriers to care may exist for patients with shoulder instability. LEVEL OF EVIDENCE: Level III, Retrospective Comparative Study.