Cooke T D, Saunders G, Siu D, Yoshioka Y, Wevers H
J Biomed Eng. 1985 Jan;7(1):45-50. doi: 10.1016/0141-5425(85)90008-1.
Since malplacement contributes most to loosening of total knee replacements (TKR), a jig was devised, aligned to and mounted on the tibia, with a 3 degrees of freedom sliding saw. A central distractor, attached to the jig, positions and aligns the knee at 0 degrees or 90 degrees. The femur is then rigidly linked to the jig for bone cutting. Resurfacing designs (Cloutier and Townley) have been regularly implanted, aligned +/- 1 degree. This precision should minimize loosening and improve function.
由于位置不当是导致全膝关节置换术(TKR)松动的主要原因,因此设计了一种夹具,该夹具与胫骨对齐并安装在胫骨上,带有一个三自由度的滑动锯。一个中央撑开器连接到夹具上,可将膝关节定位并调整到0度或90度。然后将股骨与夹具牢固连接以进行截骨。已常规植入重新表面化设计(Cloutier和Townley),其对齐精度为正负1度。这种精度应能最大程度减少松动并改善功能。