Rand J A, Coventry M B
J Bone Joint Surg Am. 1980 Mar;62(2):226-33.
Fifteen patients sustained fractures of the tibia after geometric and polycentric total knee arthroplasty. The mean follow-up after arthroplasty was 45.1 months. The chief causes for the stress fractures were axial malalignment and improper component orientation. All fifteen patients experienced loosening of the prosthesis and required revision arthroplasty for a satisfactory result. Revision at the time of diagnosis of the fracture did not adversely affect fracture healing.
15名患者在接受几何型和多中心全膝关节置换术后发生胫骨骨折。置换术后的平均随访时间为45.1个月。应力性骨折的主要原因是轴向排列不齐和假体组件定位不当。所有15名患者均出现假体松动，需要进行翻修置换术以获得满意效果。在骨折诊断时进行翻修对骨折愈合没有不利影响。
