Tanaka Miho J, Cosgarea Andrew J
Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD.
Am J Orthop (Belle Mead NJ). 2017 May/Jun;46(3):148-151.
Assessment of malalignment is an important factor in determining surgical treatment options for patellar instability. Measurement of tibial tubercle-trochlear groove (TT-TG) distance is valuable in planning surgical treatment for patellar instability, because it quantifies a component of malalignment and aids in deciding whether to perform tibial tuberosity osteotomy. In this paper we review how TT-TG distance should be understood in the context of many measurement factors to allow for an individualized procedure that addresses the specific contributors to patellar instability in each patient. Understanding the limitations of and variability in radiographic assessments of TT and TG positions can help in deciding whether to perform TT osteotomy for patellar instability.
评估力线不正情况是确定髌骨不稳定手术治疗方案的一个重要因素。测量胫骨结节-滑车沟（TT-TG）距离对于规划髌骨不稳定的手术治疗很有价值，因为它量化了力线不正的一个组成部分，并有助于决定是否进行胫骨结节截骨术。在本文中，我们回顾了在众多测量因素的背景下应如何理解TT-TG距离，以便实施个体化手术，解决每位患者髌骨不稳定的具体成因。了解TT和TG位置的影像学评估的局限性和变异性有助于决定是否对髌骨不稳定进行TT截骨术。
