Comparison of Clinical and Radiological Outcomes With Body Mass Index After Medial Patellofemoral Ligament Reconstruction

作者：Hongwei Zhan, Jinmin Liu, Xiaoyun Sheng, Zhi Yi, Zhiwei Feng, Qian Wang, Jialai Zhou, Zhongjie Wen, Bin Geng, Xin Kang, Yayi Xia, Jin Jiang · 发表于：Orthopaedic Journal of Sports Medicine · 年份：2024 · DOI：10.1177/23259671241270358 · 被引用次数：4 · 研究领域：Lower Extremity Biomechanics and Pathologies、Knee injuries and reconstruction techniques、Total Knee Arthroplasty Outcomes

Background: Medial patellofemoral ligament (MPFL) reconstruction is a commonly employed surgical approach for recurrent patellar dislocation. However, the impact of elevated body mass index (BMI) on postoperative complication rates remains controversial. Purpose: To compare the clinical, radiographic, and functional outcomes of patients with normal BMI (18.5-24.9 kg/m 2 ) and those with elevated BMI (≥25 kg/m 2 ) who underwent MPFL reconstruction for recurrent acquired lateral traumatic patellar dislocation. Study Design: Cohort Study; Level of evidence, 3. Methods: A total of 70 patients who underwent MPFL reconstruction for recurrent patellar dislocation were included in this study. Patients with recurrent patellar dislocation were categorized into 2 groups based on their BMI: the normal BMI group and the elevated BMI group. Functional scores (Lysholm, International Knee Documentation Committee [IKDC], Tegner, and Kujala scores) and radiological measurements (patellar tilt angle, patellofemoral trochlear congruence, lateral patellofemoral angle, and lateral patellar displacement) were evaluated both preoperatively and at the last follow-up. The occurrence of postoperative complications at the last follow-up was also recorded. Differences in functional scores and radiological parameters before and after surgery were analyzed with paired-samples t tests or Wilcoxon signed-rank tests. Comparisons between groups were conducted using independent-samples t tests or the Kolmogorov...