FP5.5 Predictors of Clinically Significant Outcomes at 2-years Following Hip Arthroscopy for Femoroacetabular Impingement Syndrome Utilizing Periportal Capsulotomy

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ID: 331224
2026
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Abstract
Abstract ICLB05 - The Art of Navigation: Foundations of Efficient and Complication-Free Hip Arthroscopy, Session Room 6 (BMCC Level 3), October 8, 2026, 14:00 - 16:00 Purpose To assess predictors for achieving clinically significant outcomes (CSO) improvement including minimally clinically important difference (MCID), Patient Acceptable Symptom State (PASS), and Substantial Clinical Benefit (SCB), after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) utilizing conservative capsule management with periportal capsulotomy. Methods A retrospective analysis of a prospectively collected single institutional database of primary hip arthroscopy for FAIS patients utilizing periportal capsulotomy between 2015-2023 was conducted. Exclusion criteria included hip osteoarthritis, dysplasia, and insufficient 2-year follow-up. Patients completed patient-reported outcomes (PROs) including the Hip Disability and Osteoarthritis Outcomes Score (HOOS), 12-Item Short-Form Health Survey (SF-12) Physical Component Summary (PCS), and visual analog scale (VAS) surveys at baseline and 2-years postoperatively. CSO attainment was calculated for each PRO and adjusted multivariable regression analysis was conducted to identify factors associated with CSO attainment. Results 463 cases were included (age: 34.0±10.7 years, BMI: 24.2±3.8 kg/m2, 55.1% female). 94.2%, 76.7%, and 75.4% of patients achieved CSO for HOOS, SF-12 PCS and VAS, respectively. On multivariate analysis, higher pre-operative alpha angle was associated with lower odds of attaining all HOOS and VAS CSOs as well as SF-12 PCS SCB and PASS (OR: 0.92–0.96; P<.05). Higher Tönnis grade was associated with lower odds of attaining HOOS MCID (OR:0.35; P=.043) as well as VAS SCB (OR:0.54; P=.011) and PASS (OR:0.54; P=.011). Older age was associated with lower odds of attaining SF-12 PCS SCB (OR:0.98; P=.024) and PASS (OR:0.98; P=.021). Male sex was associated with higher odds of attaining HOOS SCB (OR:2.29; P=.001) and PASS (OR:2.40; P=.002) as well as SF-12 PCS SCB (OR:1.73; P=.016) and PASS (OR:1.68; P=.021). Conclusion A high percentage of FAIS patients undergoing hip arthroscopy with periportal capsulotomy achieved CSO improvement at 2 years with younger age, lower Tönnis grade, lower alpha angle and male sex demonstrated as positive predictors.
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Authors Zachary Brumm, Kevin Chen, Lejla Pepic, Kyla A. Petrie, Nyaluma Wagala, Alan Zhang
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Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.037
URL
https://doi.org/10.1093/jhps/hnag043.037
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