Department of Orthopaedics, West Virginia University, Morgantown, West Virginia 26506-9196, USA.
J Arthroplasty. 2012 Jun;27(6):1166-70. doi: 10.1016/j.arth.2011.12.009. Epub 2012 Jan 27.
The purpose of this study was to determine if recent changes to the femoral component of a particular posterior-stabilized total knee prosthesis would affect the incidence of postoperative patellofemoral crepitance and patella clunk syndrome. One hundred eight total knee arthroplasties were performed with the conventional design; 136 were performed after the femoral component was changed. Complications were compared between the groups with an average follow-up of 17.7 months and 12.4 months, respectively. Thirteen knees with the conventional design (12%) were found to have patellofemoral complications; no complications were noted with the new design (P < .0001). Femoral components with a deep trochlear groove and smooth transition of the intercondylar box appear to better accommodate any peripatellar fibrous nodule that may form after total knee arthroplasty.
本研究旨在确定特定后稳定型全膝关节假体股骨部件的近期变化是否会影响术后髌股关节弹响和髌骨叩击综合征的发生率。108 例全膝关节置换术采用传统设计；136 例在股骨部件改变后进行。两组平均随访 17.7 个月和 12.4 个月，比较并发症。13 例采用传统设计的膝关节（12%）发现髌股关节并发症；新设计无并发症（P <.0001）。带深滑车沟和髁间盒平滑过渡的股骨部件似乎更能适应全膝关节置换术后可能形成的任何髌旁纤维结节。
