Carlsson A S, Rydberg J, Onnerfält R
Department of Orthopedics, Malmö University Hospital, Sweden.
Acta Orthop Scand. 1995 Aug;66(4):339-42. doi: 10.3109/17453679508995557.
We evaluated the effect of a prosthetic collar on the proximal femoral bone in 204 hips without any signs of loosening after 5 years. The patients were operated on at 5 centers, using different prosthetic designs, but the same cementing technique. Resorption was more often found in cases with a true and large collar (Lubinus, HD2, Scanhip) than in cases with a flanged or tapered stem (Charnley, Exeter). The resorption was also more pronounced with the former designs. It was concluded that, in spite of theoretical advantages, a large collar is not only unnecessary but may also have negative long-term effects.
我们评估了假领对204例髋关节股骨近端骨的影响，这些髋关节在5年后无任何松动迹象。患者在5个中心接受手术，使用不同的假体设计，但采用相同的骨水泥技术。与有凸缘或锥形柄（Charnley、Exeter）的病例相比，在有真正大假领（Lubinus、HD2、Scanhip）的病例中更常发现骨吸收。在前一种设计中，骨吸收也更明显。得出的结论是，尽管有理论上的优势，但大假领不仅不必要，而且可能产生负面的长期影响。
