why choose us

300×250 Ad Slot

Research Article: V-shaped capsular plication for treating cam-type femoroacetabular impingement with hip instability in borderline dysplastic hips: a retrospective cohort study

Date Published: 2026-06-08

Abstract:
Purpose Patients with cam-type femoroacetabular impingement (FAI) frequently present with concomitant borderline developmental dysplasia of the hip (BDDH), a critical instability risk factor. Capsular plication may contribute to improved stability through the screw-home mechanism. This study evaluates the clinical outcomes of arthroscopic T-capsulotomy combined with V-shaped capsular plication for managing cam-type FAI in BDDH-associated instability and confirms its short-term efficacy. This retrospective cohort study included 15 patients diagnosed with symptomatic cam-type FAI and concomitant BDDH (LCEA: 20°-25°) between July 2019 and July 2023. All patients underwent arthroscopic labral repair, femoroacetabular osteoplasty, and T-capsulotomy with V-shaped capsular plication. Clinical outcomes were assessed using the Visual Analog Scale (VAS) for pain, Modified Harris Hip Score (mHHS), Hip Outcome Score-Activities of Daily Living (HOS-ADL), and Hip Outcome Score Sport-Specific Subscale (HOS-SSS) preoperatively and postoperatively. Statistical analysis employed paired t-tests for intra-group comparisons. All 15 patients completed follow-up with a minimum duration of 12 months (mean 18.2 months, range 12–24). No major complications occurred. Significant improvements were observed in all outcome measures at final follow-up: mHHS improved from 57.33?±?5.34 to 86.07?±?2.67 ( P <?0.01); VAS decreased from 5.73?±?0.57 to 1.07?±?0.57 ( P <?0.001); HOS-ADL improved from 50.09?±?5.02 to 89.31?±?2.43; HOS-SSS improved from 41.66?±?5.08 to 85.92?±?4.70 (both P <?0.01). The described arthroscopic technique, adapting principles from pediatric DDH surgery, appears to be a promising approach for addressing cam-type FAI in BDDH patients with instability risk factors, demonstrating short-term clinical outcomes. But, further studies with larger cohorts and longer follow-up are warranted.

Introduction:
Purpose Patients with cam-type femoroacetabular impingement (FAI) frequently present with concomitant borderline developmental dysplasia of the hip (BDDH), a critical instability risk factor. Capsular plication may contribute to improved stability through the screw-home mechanism. This study evaluates the clinical outcomes of arthroscopic T-capsulotomy combined with V-shaped capsular plication for managing cam-type FAI in BDDH-associated instability and confirms its short-term efficacy.

Read more

300×250 Ad Slot