Suganthy J, Rassau Marina, Koshi Rachel, Battacharjee Suranjan
Department of Anatomy, Christian Medical College, Vellore, India.
Clin Anat. 2007 May;20(4):460-4. doi: 10.1002/ca.20407.
Congenital absence of tibia is a rare anomaly. We report a case of bilateral tibial hemimelia born to phenotypically normal parents. The two amputated legs with tibial dysplasia obtained from a 3-year-old boy were studied by radiography and anatomical dissection. The radiological evaluation revealed a normal hip joint. The lower end of femur was normal without any bifurcation, shortening or bowing. Fibula was present on both legs and there was no sign of bowing or doubling. Both right and left tibiae were absent. In addition, on the right side, five tarsal bones, two metatarsals and the corresponding digital rays were absent. On the left side, three tarsal bones were absent. Dissection of the amputated segments showed the presence of extensor digitorum longus, peroneus tertius, peroneus longus and brevis, gastrocnemius, and soleus. Following bilateral knee disarticulation the patient was fitted with prosthesis and is doing well.
先天性胫骨缺如是一种罕见的畸形。我们报告一例双侧胫骨半肢畸形患儿，其父母表型正常。对一名3岁男孩的两条因胫骨发育不良而截肢的腿进行了影像学检查和解剖学研究。影像学评估显示髋关节正常。股骨下端正常，无分叉、缩短或弯曲。双腿均有腓骨，无弯曲或重复迹象。双侧胫骨均缺如。此外，右侧缺如5块跗骨、2块跖骨及相应的趾骨。左侧缺如3块跗骨。对截肢段进行解剖显示有趾长伸肌、第三腓骨肌、腓骨长肌和短肌、腓肠肌和比目鱼肌。双侧膝关节离断术后，患者安装了假肢，情况良好。
