Nadaud Matthew C, Fehring Thomas K, Fehring Keith
Charlotte Orthopedic Research Institute, NC, USA.
J Arthroplasty. 2004 Jan;19(1):110-5. doi: 10.1016/j.arth.2003.08.005.
Periprosthetic osteolysis in total knee arthroplasty (TKA) has become a significant problem. Routine surveillance is warranted to detect problems that may not be symptomatic. The goal of these radiographs is to detect arthroplasty-related bone loss at an early stage to implement strategies to limit its extension. The purpose of this study was to show the extent to which condylar osteolysis can be underestimated on routine radiographs. Two cadaveric femurs were prepared to receive a posterior stabilized (PS) femoral component. A simulated osteolytic lesion was created using acetabular reamers. Lesions of 36 mm not easily discernible on standard anteroposterior and lateral images were easily recognized on oblique films. The oblique radiographs described can help with the early recognition of retrofemoral osteolysis about a posterior-stabilized implant.
全膝关节置换术（TKA）中的假体周围骨溶解已成为一个重大问题。有必要进行常规监测以发现可能无症状的问题。这些X线片的目的是在早期检测与关节置换相关的骨质流失，以便实施限制其发展的策略。本研究的目的是表明在常规X线片上髁间骨溶解被低估的程度。准备了两具尸体股骨以植入后稳定型（PS）股骨假体。使用髋臼扩孔钻创建模拟骨溶解病变。在标准前后位和侧位图像上不易辨别的36毫米病变在斜位片上很容易识别。所描述的斜位X线片有助于早期识别后稳定型植入物周围的股骨后髁骨溶解。
