Cameron H U
Departments of Surgery, Pathology, and Engineering, University of Toronto, Canada.
Contemp Orthop. 1992 Mar;24(3):326-30.
A prospective, nonrandomized study was conducted in an attempt to determine if the addition of a stem to the tibial component in noncemented total knee replacement reduces the incidence of sinkage. A stemmed tibial component was used in 125 cases and an identical artificial knee without a stem was used in 307 cases. Follow-up was two to six years. Sinkage occurred in 0.8% of the cases with stemmed tibial components and in 3.5% of the nonstemmed tibial components, among which two (0.8%) required revision. The clinical results for both groups were similar. A small group of 34 patients who had a stemmed tibial component on one side and a nonstemmed component on the other also were examined. Fifty percent of these patients preferred the stemmed component knee. The results of these studies suggest that the addition of a stem to the tibial component in noncemented total knee replacement is of value in preventing tibial sinkage.
开展了一项前瞻性非随机研究，旨在确定在非骨水泥型全膝关节置换术中，给胫骨假体增加一个柄是否能降低下沉发生率。125例患者使用了带柄的胫骨假体，307例患者使用了相同的无柄人工膝关节。随访时间为2至6年。带柄胫骨假体组有0.8%的病例出现下沉，无柄胫骨假体组有3.5%的病例出现下沉，其中2例（0.8%）需要翻修。两组的临床结果相似。还对一小群34例患者进行了检查，这些患者一侧使用带柄胫骨假体，另一侧使用无柄假体。这些患者中有50%更喜欢带柄假体的膝关节。这些研究结果表明，在非骨水泥型全膝关节置换术中给胫骨假体增加一个柄，对于预防胫骨下沉是有价值的。
