Arthroscopy. 2023 Mar;39(3):670-672. doi: 10.1016/j.arthro.2022.12.006.
Patella instability and dislocation are common in younger patients, and 1 in 5 patients are at risk of recurrent dislocations. Conservative treatment should be considered for first dislocations unless other concomitant injuries are present. Historically, lateral patella release and medial plication techniques were used for repair but have been superseded by medial patellofemoral ligament reconstruction. Overconstraint is a potential problem and often related to nonanatomic femoral tunnel position and graft tension, which could result in increased patellar contact pressures and graft failure. The medial quadriceps tendon-femoral ligament reconstruction technique (MQTFL) avoids patellar tunnels without the risk of patella fracture. When comparing medial patellofemoral ligament, MQTFL, and the combination of both techniques in a cadaver model, MQTFL resulted in less constraint with no differences for patellar contact pressures. Medial quadriceps tendon femoral ligament reconstruction is the most anatomic repair.
髌骨不稳定和脱位在年轻患者中较为常见,1/5 的患者存在复发性脱位的风险。初次脱位时应考虑保守治疗,除非存在其他伴随损伤。传统上,外侧髌骨松解和内侧紧缩技术用于修复,但已被内侧髌股韧带重建所取代。过度约束是一个潜在的问题,通常与非解剖股骨隧道位置和移植物张力有关,这可能导致髌骨接触压力增加和移植物失败。内侧股四头肌肌腱-股韧带重建技术(MQTFL)避免了髌骨隧道,不存在髌骨骨折的风险。在尸体模型中比较内侧髌股韧带、MQTFL 和两种技术结合的效果时,MQTFL 约束更小,髌骨接触压力没有差异。内侧股四头肌肌腱-股韧带重建是最符合解剖学的修复方法。