MPFL 重建纠正髌骨高位：一项队列研究。
MPFL reconstruction corrects patella alta: a cohort study.
机构信息
Department of Orthopaedic Surgery, Changi General Hospital, Singapore, Singapore.
Division of Sports Medicine and Surgery, Department of Orthopaedic Surgery, National University Hospital, Singapore, Singapore.
出版信息
Eur J Orthop Surg Traumatol. 2022 Jul;32(5):883-889. doi: 10.1007/s00590-021-03056-3. Epub 2021 Jun 22.
PURPOSE
Patella alta is an established risk factor for recurrent lateral patella dislocations. Medial patellofemoral ligament (MPFL) reconstruction has been shown to reduce patella height. Our hypothesis is that isolated MPFL reconstruction corrects patella alta, thereby reducing the risk of recurrent patella dislocation.
METHODS
A prospective cohort study of 33 knees which underwent MPFL reconstruction for recurrent patella dislocation. The pre-operative and post-operative patella height and Kujala knee outcome scores, as well as tibial tuberosity-trochlear groove (TT-TG) distance, and the grade of trochlear dysplasia were recorded.
RESULTS
The mean age was 21.5 years (16-34 years). There was significant reduction in patella height in all patients (p < 0.001), a 67% normalisation of patella alta (CD ≥ 1.2) (p < 0.004), and improvement in the Kujala scores 57.1 (pre-operatively) to 94.8 (post-operatively, p < 0.0001). The recurrent dislocation rate was 3%.
CONCLUSION
MPFL reconstruction alone results in correction in patella alta and improvement in clinical outcomes.
目的
髌骨高位是复发性外侧髌骨脱位的既定危险因素。内侧髌股韧带（MPFL）重建已被证明可降低髌骨高度。我们的假设是，孤立的 MPFL 重建可纠正髌骨高位，从而降低复发性髌骨脱位的风险。
方法
前瞻性队列研究了 33 例因复发性髌骨脱位而行 MPFL 重建的膝关节。记录术前和术后髌骨高度、Kujala 膝关节评分，以及胫骨结节-滑车沟（TT-TG）距离和滑车发育不良程度。
结果
平均年龄为 21.5 岁（16-34 岁）。所有患者的髌骨高度均显著降低（p<0.001），髌骨高位（CD≥1.2）的正常化率为 67%（p<0.004），Kujala 评分从术前的 57.1 分提高至术后的 94.8 分（p<0.0001）。复发性脱位率为 3%。
结论
单独进行 MPFL 重建可纠正髌骨高位并改善临床结果。
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