EP1.16 Outcome Following Hip Arthroscopy in Patients with Acetabular Retroversion: Preliminary results of a Retrospective Study

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ID: 330991
2026
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Abstract
Abstract Background Acetabular retroversion is a structural abnormality associated with femoroacetabular impingement, labral pathology, and early cartilage degeneration. While periacetabular osteotomy addresses acetabular orientation, hip arthroscopy is frequently performed as a less invasive option in patients with mild-to-moderate retroversion; however, its role remains controversial and patient selection criteria are not well defined. Purpose To evaluate patient-reported outcomes following hip arthroscopy in patients with acetabular retroversion and identify predictors of postoperative improvement. Methods: A retrospective review was conducted of prospectively collected data for patients undergoing hip arthroscopy between 2022 and 2025. Inclusion criteria were age 18–50 years, symptomatic acetabular retroversion <15° on CT, and available pre- and one-year postoperative patient-reported outcome measures (iHOT-12, VAS, mHHS). Exclusion criteria included advanced osteoarthritis (Tönnis ≥2), prior ipsilateral hip surgery, non-primary deformities, workers’ compensation cases, and neuropathic conditions. All procedures were performed by a single surgeon using standard arthroscopic techniques, including acetabuloplasty in all cases, with femoroplasty and labral repair as indicated. Results: Twenty-seven patients (63% male) with a mean age of 33.4 ± 9.0 years were included. Significant improvements were observed at one year across all PROMs: iHOT-12 improved from 39.2 to 65.1 (+25.9), VAS from 54.0 to 23.8 (+30.2), and mHHS from 51.3 to 70.4 (+19.1) (all p < 0.01). MCID achievement rates were 70.8% for iHOT-12, 84.0% for VAS, and 56.5% for mHHS, with 50.0% achieving MCID across all measures. Increasing degree of acetabular retroversion was associated with greater improvement in iHOT-12 (2.8 points per degree) and VAS (2.7 points per degree), both statistically significant. Age showed no significant correlation with outcome improvement. Conclusion Hip arthroscopy demonstrates significant short-term improvement in patients with acetabular retroversion; however, outcomes may be influenced by the degree of retroversion, and findings should be interpreted cautiously given the small sample size. Further studies are required to better define indications and optimize patient selection.
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Authors Mark Ibrahim, Batool Bosakhar, Hammad Khan, Tao Lim
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Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.200
URL
https://doi.org/10.1093/jhps/hnag043.200
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