ArticleArchives of orthopaedic and trauma surgery2026
Gait speed recovery after iliofemoral ligament-preserving hip arthroscopy for femoroacetabular impingement: associations with early postoperative gait kinematics.
Article in Archives of orthopaedic and trauma surgery, 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
introductionWhether iliofemoral ligament-preserving hip arthroscopy facilitates recovery of gait speed-an indicator of functional recovery following hip arthroscopy in patients with femoroacetabular impingement-remains unclear. We investigated whether gait speed improved after iliofemoral ligament-preserving hip arthroscopy and examined whether pelvic jerk, defined as the time derivative of acceleration and assessed using inertial sensors at 1 month postoperatively (1M), was associated with gait speed at 6 months (6M). MATERIALS AND
methodsEighteen patients who underwent primary hip arthroscopy for femoroacetabular impingement were included. Gait speed and pelvic jerk were assessed during a 10-m walk at a self-selected speed, using an inertial sensor positioned at the third lumbar level. Peak pelvic jerks during the 1st and 2nd halves of the stance phase (1st - and 2nd -peak pelvic jerks) were calculated. Measurements were obtained preoperatively and at 1M and 6M. Gait parameters were compared across time points using a linear mixed model. Bayesian regression was used to compare the observed change in gait speed from preoperatively to 6M with previously reported values. Associations between gait variables at 1M and gait speed at 6M were also examined.
resultsGait speed was significantly higher at 6M than that pre surgery (preoperative, 1.15 [95% confidence interval, 1.08-1.21] m/s, 6M, 1.24 [95% confidence interval, 1.17-1.30] m/s, P = 0.013). Bayesian analysis indicated that the improved gait speed (posterior mean, 0.09 m/s; 95% credible interval, 0.04-0.14) was comparable with previously reported values. The 2nd -peak pelvic jerk at 1M was significantly associated with gait speed at 6M (β = 0.63, P = 0.02).
conclusionsIliofemoral ligament-preserving hip arthroscopy was associated with a significant improvement in gait speed at 6M. Early postoperative gait kinematics during the latter half of the stance phase, reflected by the 2nd -peak pelvic jerk, may be associated with subsequent gait speed recovery.
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