Yamanaka Hajime, Goto Ken-Ichiro, Murata Yasuaki, Miyamoto Kazutoshi
Department of Orthopaedic Surgery, National Hospital Organization, Shimoshizu Hospital, 934-5 Shikawatashi, Yotsukaido, 284-0003, Japan.
Mod Rheumatol. 2006;16(2):105-8. doi: 10.1007/s10165-006-0463-9.
We report an 80-year-old woman with rheumatoid arthritis (RA) who was found to have subchondral insufficiency fracture of the right femoral head after total knee arthroplasty (TKA). Initially, plain radiographs showed no obvious changes, but magnetic resonance imaging (MRI) revealed an irregular, discontinuous, low-intensity band on T1-weighted images of the right hip. She underwent hemiarthroplasty of the hip. This report describes a rare case of subchondral insufficiency fracture of the femoral head after TKA in a patient with RA.
我们报告了一名80岁的类风湿性关节炎（RA）女性患者，该患者在全膝关节置换术（TKA）后被发现存在右股骨头软骨下不全骨折。最初，X线平片未显示明显变化，但磁共振成像（MRI）显示右髋T1加权图像上有一条不规则、不连续的低强度带。她接受了髋关节半关节置换术。本报告描述了一例类风湿性关节炎患者全膝关节置换术后罕见的股骨头软骨下不全骨折病例。
