作者回顾复习50例经手术的股骨远端分离性骨软骨炎。术时所见各例不同,一般有三种型式:第一类22例,关节软骨碎片或关节软骨连同附着的软骨下骨位于髁缺损处(原位)而仅有部分连结;第二类为过渡期,7例,有部分附着的骨软骨碎片,但亦有游离体;第三类21例,具有游离体及一空虚的股骨髁缺损。47例有术前X线片。当分离性骨软 The authors reviewed review of 50 cases of isolated distal femoral osteochondritis. Different cases are seen during surgery, there are generally three types: the first class of 22 cases, articular cartilage fragments or articular cartilage with attached subchondral bone located at the ankle defect (in situ) and only part of the connection; the second category is the transition In 7 cases, there were some pieces of attached osteochondral fragments, but there were also free bodies; the third group consisted of 21 cases with free bodies and an empty femoral condyle defect. Forty-seven patients had preoperative radiographs. When isolated bone soft