Tokgöz Mehmet Ali, Çavuşoğlu Ali Turgay, Ayanoğlu Tacettin, Elma Tarık, Vural Abdurrahman
Department of Orthopedics and Traumatology, Medical Faculty of Gazi University, 06500 Beşevler, Ankara, Turkey.
Eklem Hastalik Cerrahisi. 2017 Aug;28(2):128-31. doi: 10.5606/ehc.2017.54207.
Congenital dislocation of the patella is a disorder that presents with dysfunction in extensor mechanism. Although congenital dislocation of the patella mostly occurs in children with genetic disorders, it may also occur in totally healthy children, despite rarely. In this article, we report a 16-year-old male patient who referred to our clinic with complaints of gait disturbance, frequent falls, and muscular weakness in lower extremity. The patient had no complaints during walking, but had difficulty in running and walking up and down the stairs. It was observed that the range of motion of the knee joint was completely painless and the quadriceps muscle strength was evaluated as 3/5. An evaluation of computed tomography and magnetic resonance imaging results showed that the patella was dislocated. It became clear with magnetic resonance imaging that extensor mechanism was continuous but patellar tendon was not attached to its anatomical position. Surgical treatment was not planned because the patient did not describe any pain complaint and there was no limitation of joint movement, he could walk without support and without device and also refused to be operated. The choice of treatment should be based on the patient's preference, and pain and functional status.
先天性髌骨脱位是一种表现为伸肌机制功能障碍的疾病。虽然先天性髌骨脱位大多发生于患有遗传疾病的儿童，但也可能发生在完全健康的儿童身上，尽管这种情况很少见。在本文中，我们报告了一名16岁男性患者，他因步态障碍、频繁跌倒以及下肢肌肉无力前来我们诊所就诊。患者行走时无不适，但跑步及上下楼梯困难。观察发现膝关节活动范围完全无痛，股四头肌肌力评估为3/5。计算机断层扫描和磁共振成像结果评估显示髌骨脱位。磁共振成像显示伸肌机制连续，但髌腱未附着于其解剖位置。由于患者未描述任何疼痛症状，关节活动无受限，能无需支撑和辅助设备行走，且拒绝手术，因此未计划进行手术治疗。治疗方案的选择应基于患者的偏好、疼痛及功能状态。
