Chen S C, Sarkar S, Pell L H
Injury. 1980 Nov;12(3):243-9. doi: 10.1016/0020-1383(80)90015-7.
Following replacement of the femoral head with the Monk hard-top 'duo-pleet' prosthesis, radiological studies show that movement of the replaced hip takes place between the acetabulum and the metal shell and between the high density polyethylene cup and metal ball. Movements improve with the passage of time. The two sites of movement may contribute to a greater range of hip movement, a better safeguard against loosening and possibly less medial migration of the prosthesis than solid metal prostheses like the Thompson and Austin Moore types.
在用蒙克硬顶“双瓣”假体置换股骨头后，放射学研究表明，置换后的髋关节在髋臼与金属外壳之间以及高密度聚乙烯杯与金属球之间发生活动。随着时间推移，活动情况有所改善。与汤普森和奥斯汀·摩尔等实心金属假体相比，这两个活动部位可能有助于实现更大范围的髋关节活动，更好地防止松动，并且可能减少假体的内侧移位。
