ArticleInternational orthopaedics2026
High pelvic incidence is associated with inferior one-year outcomes after hip arthroscopy for femoroacetabular impingement: a multicentre study with spinopelvic analysis.
Article in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe influence of pelvic incidence (PI) on outcomes after hip arthroscopy for femoroacetabular impingement remains uncertain. This study evaluated whether PI was associated with one-year outcomes, pain, satisfaction, and willingness to repeat surgery.
methodsThis retrospective multicentre cohort included 200 consecutive hips treated with hip arthroscopy for symptomatic femoroacetabular impingement and available standing EOS imaging. Hips were classified as low PI (≤ 40°), normal PI (40° < PI < 65°), or high PI (≥ 65°). Outcome analyses included 178 hips with available one-year Non-Arthritic Hip Score. Multivariable models adjusted for baseline outcome scores and prespecified covariates.
resultsBaseline characteristics did not differ significantly between PI groups. At one year, high PI was associated with lower Non-Arthritic Hip Score, modified Harris Hip Score, and International Hip Outcome Tool-12 scores, greater residual hip and low-back pain, lower satisfaction, and reduced willingness to repeat surgery. Improvement from baseline in Non-Arthritic Hip Score and International Hip Outcome Tool-12 did not differ significantly between groups. After adjustment, high PI remained associated with lower hip-specific scores, greater residual hip and low-back pain, lower global and activity-related satisfaction, lower odds of International Hip Outcome Tool-12 minimal clinically important difference achievement, and lower odds of answering "absolutely yes" to repeat surgery. Low PI was not significantly associated with adjusted outcomes.
conclusionHigh PI was associated with inferior one-year postoperative status after hip arthroscopy for femoroacetabular impingement. However, most patients achieved clinically meaningful improvement, suggesting that high PI should guide counselling and risk stratification rather than contraindicate arthroscopy.
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