Mahaluxmivala J, Bankes M J, Nicolai P, Aldam C H, Allen P W
Princess Alexandra Hospital, Harlow, Essex, United Kingdom.
J Arthroplasty. 2001 Aug;16(5):635-40. doi: 10.1054/arth.2001.23569.
Component angles of 673 Press Fit Condylar (PFC) total knee arthroplasties were measured from standard short-leg radiographs. The femoral and tibial resections were performed with intramedullary and extramedullary instrumentation. The mean coronal tibial component angle was 88.59 degrees (SD, 2.28 degrees; range, 78-98 degrees ), with 17.1% having values <87 degrees and 1.9% having values >93 degrees. The mean coronal femoral component angle was 97.43 degrees (SD, 3.44 degrees; range, 84-115 degrees ), with 9.1% having values <94 degrees and 13.1% having values >100 degrees. An ideal tibiofemoral angle of 4 degrees to 10 degrees of valgus was achieved in 75.3% of patients, being <4 degrees in 18.6% and >10 degrees in 6.1%. Alignment was not significantly different between consultant and trainee surgeons. Although varus positioning of the tibial component was the commonest error, the wide range of femoral component angles signifies problems with standard intramedullary femoral guides.
从标准短腿X线片测量了673例压配型髁间（PFC）全膝关节置换术的假体角度。股骨和胫骨截骨采用髓内和髓外器械进行。胫骨假体冠状面平均角度为88.59度（标准差2.28度；范围78 - 98度），17.1%的值<87度，1.9%的值>93度。股骨假体冠状面平均角度为97.43度（标准差3.44度；范围84 - 115度），9.1%的值<94度，13.1%的值>100度。75.3%的患者实现了4度至10度的理想外翻胫股角，18.6%<4度，6.1%>10度。顾问医师和实习医师之间的对线情况无显著差异。虽然胫骨假体的内翻定位是最常见的错误，但股骨假体角度的广泛范围表明标准髓内股骨导向器存在问题。
