Billy I. Kim

Jack C. Casey, BS, Seong J. Jang, MD, Billy I. Kim, MD, Kyle N. Kunze, MD, Chris Anderson, MD, David J. Mayman, MD, Seth A. Jerabek, MD, Jonathan M. Vigdorchik, MD, Peter K. Sculco, MD. Hip Pelvis 2026;38:234-41. https://doi.org/10.5371/hp.2026.38.3.234

Purpose: To estimate the number, risk factors, and types of basketball‐related injuries in pediatric patients who presented to United States emergency departments between 2019 and 2023, as estimated by the National Electronic Injury Surveillance System (NEISS). Methods: Pediatric patients (P = .044) compared with adolescents, whereas men were at an increased risk of hospitalization (OR: 2.01, 95% CI: 1.54‐2.67, P < .001) compared with women. Patients who presented to small hospitals (OR: .28, 95% CI: .17‐.43, P < .001) and medium hospitals (OR: .16, 95% CI: .07‐.32, P < .001) were significantly less likely to be admitted compared with those who presented to large, very large, and children's hospitals. Conclusions: The number of estimated basketball‐related injuries for children and adolescents substantially increased between 2020 and 2023, where strains and sprains represented the most common injury types. Risk factors for hospital admission included older age at the time of presentation, male sex, fractures, dislocations, and larger hospital size. Level of Evidence: Level IV, retrospective case series.

Psychological distress and musculoskeletal pain are interconnected with poor functional outcomes. This study sought to classify common phenotypes of psychological distress in an orthopaedic sports population and assess differences in functional outcomes using the Prediction of Referral and Outcome (OSPRO-YF) tool. This was a cross-sectional study on 411 operative patients from a single sports surgeon’s clinical practice with completed OSPRO-YF questionnaires. Latent class analysis was employed to construct distress phenotypes based on binary measures for 11 single-construct psychological questionnaires, spanning two negative and one positive domains of pain-associated psychological distress. Functional outcome measures, including numerical pain scores, the Patient-Reported Outcomes Measurement Information System (PROMIS), the Single Assessment Numeric Evaluation (SANE) American Shoulder and Elbow Surgeons Score (ASES), and the International Knee Documentation Committee Subjective Knee Form (IKDC), were compared. Four psychological distress clusters were derived: low distress (LD-1; n = 111), low self-efficacy (LS-2; n = 101), negative pain coping, low self-efficacy (NP-3; n = 99), and high distress (HD-4; n = 100), with increasing yellow flags proceeding from LD-1 to HD-4. The mean numerical pain scores were highest in HD-4 and lowest in LD-1 and LS-2 (4.6 vs. 2.7 and 2.0, respectively; p < 0.001). The PROMIS depression scores were highest in HD-4 compared to NP-3, LS-2, and LD-1 (57.0 vs. 48.9 vs. 45.6 vs. 46.0; p < 0.001). Phenotyping patients based on OSPRO-YF distress indicators provides an initial framework of the psychological distress burdening the average orthopaedic sports surgical patient population and may aid in targeted psychological treatments.

(1) Background: Pain experiences are shaped by both physical injury and psychological distress, posing challenges for orthopedic care. While surgery may alleviate injury-related distress, the extent of psychological improvement post surgery remains unclear. Thus, the purpose of this study was to evaluate changes in general and pain-specific psychological distress after surgical intervention for musculoskeletal injury. (2) Methods: A retrospective review was conducted on 133 patients who underwent musculoskeletal surgery between February 2020 and August 2022 by a single sports medicine fellowship-trained surgeon. Psychological distress was assessed using the Optimal Screening for Prediction of Referral and Outcome Yellow-Flag (OSPRO-YF) tool, both before and at least six months after surgery. Pre- and postoperative scores were compared using paired t-tests, and clinically meaningful changes were evaluated using a distribution-based minimal clinically important difference (MCID) threshold. (3) Results: Significant reductions were found in total OSPRO-YF scores and several subdomains including fear avoidance (physical activity and work), kinesiophobia, and pain anxiety. However, 88% of patients showed no meaningful change in overall psychological distress. In patients with high baseline distress, over 20% showed meaningful improvement in six subdomains. (4) Conclusions: Psychological distress often persists after musculoskeletal surgery. Targeted psychological interventions may benefit patients with high preoperative distress.

Background: For patients with rheumatoid arthritis (RA) undergoing total ankle arthroplasty (TAA), conflicting data have been reported regarding complications and patient-reported outcome (PRO) improvement when compared with patients with osteoarthritis (OA). The purpose of this study was to compare complication rates and PROs among patients with RA, primary OA, or posttraumatic arthritis. Methods: This was a retrospective study of 1,071 primary TAAs performed at a single institution between March 2000 and October 2020. Minimum follow-up was 2 years. Patients were stratified by indication for TAA (OA, n = 372; posttraumatic arthritis, n = 642; RA, n = 57). Patient demographics, intraoperative variables, postoperative complications, and PRO measures were compared among the groups using univariable statistics. Cox regression was performed to assess the risk of implant failure. The overall cohort had a mean age of 63.4 years, 51.3% were male, and 94.8% were White. The mean duration of follow-up (and standard deviation) was 5.7 ± 3.1 years. Results: Compared with the OA and posttraumatic arthritis groups, the RA cohort had the lowest mean age (p < 0.001), lowest percentage of males (p < 0.001), and highest American Society of Anesthesiologists (ASA) score (p < 0.001). Univariable analysis showed no significant difference in the infection rate among the groups (p = 1.0). The RA cohort had the highest rate of heterotopic ossification postoperatively (2 of 57, 3.5%; p < 0.040). Cox regression analysis showed no increased risk of implant failure for the RA cohort (p = 0.08 versus the OA cohort, 0.14 versus the posttraumatic arthritis cohort). For the Short Musculoskeletal Function Assessment (SMFA), Short Form (SF)-36, Foot and Ankle Outcome Score (FAOS)-symptoms subscale, and FAOS-activities of daily living subscale, the RA group reported significantly worse scores in the postoperative period (p < 0.001). However, the RA cohort demonstrated improvements in all PROs. Conclusions: In the largest single-institution study to date, patients with RA reported poorer PRO scores compared with the OA and posttraumatic arthritis groups but experienced functional outcome improvement from the preoperative baseline. Level of Evidence: Therapeutic Level III . See Instructions for Authors for a complete description of levels of evidence.

Background: Weight optimization methods in morbidly obese patients with a body mass index (BMI) of ≥40 kg/m² undergoing total knee arthroplasty (TKA) have shown mixed results. The purpose of this study was to evaluate the effect of perioperative use of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) in patients with a BMI of ≥40 kg/m² undergoing primary TKA. Methods: Using an administrative claims database, patients with morbid obesity undergoing primary TKA were stratified into GLP-1 RA use for 3 months before and after the surgical procedure (treatment group) and GLP-1 RA non-use (control group), and were matched on the basis of patient age, gender, diagnosis of type-2 diabetes mellitus, and Charlson Comorbidity Index (CCI). In addition, these groups were compared with a contemporaneous cohort of patients undergoing TKA with a BMI of 35.0 to 39.9 kg/m². Outcomes including infection, complications, revision, and readmission were compared between the matched cohorts. Results: There were significant decreases in the rates of 90-day periprosthetic joint infection (PJI) (1.0% compared with 1.8%; p = 0.037), any medical complications (10.6% compared with 12.7%; p = 0.033), pulmonary embolism (2 who were taking GLP-1 RA versus the control group who were not. There were no differences in the 2-year rates of surgical complications (p > 0.05) between these groups. Compared with obese patients (BMI of 35.0 to 39.9 kg/m²), patients who had a BMI of ≥40 kg/m² and were taking a GLP-1 RA did not have increased rates of infection or 90-day or 2-year complications (p > 0.05). Conclusions: GLP-1 RA administration for at least 90 days prior to and after primary TKA in patients with a BMI of ≥40 kg/m² was associated with reductions in the risks of 90-day PJI, any medical complications, and readmission. Additionally, the reduced complication rate that was achieved was similar to that of obese patients with a BMI of 35.0 to 39.9 kg/m² undergoing TKA. Randomized clinical trials are needed to define the true effect of these agents on clinical outcomes following TKA. Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Introduction: Launched in 2018 for revision total ankle arthroplasty (rTAA), the INVISION talar component addresses subsidence when poor talar bone stock is present. Due to the recency of the market-availability of the INVISION, studies evaluating its efficacy are lacking. This study presents the first analysis of early-term outcomes of patients undergoing rTAA with the INVISION talar component. Methods: This was a single-center, retrospective review of 28 patients undergoing rTAA with the INVISION talar component and INBONE II tibial component performed between 2018 and 2022. Data on preoperative characteristics, postoperative complications, secondary procedures, and survivorship were collected. The primary outcome measures were rates of major complications, re-operation, and implant failure. Secondary outcomes included post-operative changes in varus and valgus alignment of the tibia and talus. Results: The most common secondary procedures performed with rTAA were medial malleolus fixation (n = 22, 78.6%) and gastrocnemius recession (n = 14, 50%). Overall, 10.7% (n = 3) of patients underwent reoperation and 14.3% (n = 4) suffered major complications. Incidence of implant failure was 10.7% (n = 3). All reoperations were caused by infection. Mean varus alignment of the tibia and talus improved from 4.07 degrees and 4.83 degrees to 1.67 degrees and 1.23 degrees, respectively. Mean valgus alignment of the tibia and talus improved from 3.67 degrees and 4.22 degrees to 2.00 degrees and 2.32 degrees, respectively. Conclusions: In a series of 28 patients undergoing rTAA with the INVISION talar component, we discovered comparatively low rates of reoperation, major complication, and implant failure (10.7%, 14.3%, and 10.7%). The INVISION system appears to have a reasonable safety profile, but further studies evaluating long-term outcomes are required to assess the efficacy of the INVISION system.