Christie Michael, Brinson Martha F
Southern Joint Replacement Institute, Nashville, Tenn, USA.
Orthopedics. 2005 Sep;28(9 Suppl):s1033-6. doi: 10.3928/0147-7447-20050902-05.
Femoral deformity in primary total hip arthroplasty can make restoration of joint biomechanics difficult. The S-ROM (DePuy Orthopaedics Inc., Warsaw, Ind) prosthesis' modular design allows for independent matching of diaphyseal and metaphyseal anatomy. Corrective osteotomy may also be performed because the stem achieves both proximal and distal stability, which resists the micromotion and torsional loads that would otherwise prevent ingrowth. Seventy-three hips were reviewed at a minimum of 10 years' follow-up. Osteolysis was common, occurring in 55% of hips, but no osteolysis distal to the stem/sleeve junction was present. At mean 12 years' follow-up, the stem remains stable and no failures of the modular junction have been reported.
初次全髋关节置换术中的股骨畸形会使关节生物力学的恢复变得困难。S-ROM（美国印第安纳州华沙市的DePuy骨科公司）假体的模块化设计允许对骨干和干骺端解剖结构进行独立匹配。也可进行截骨矫正，因为假体柄能实现近端和远端的稳定，可抵抗微动和扭转负荷，否则这些负荷会阻碍骨长入。对73例髋关节进行了至少10年的随访。骨溶解很常见，55%的髋关节出现骨溶解，但在假体柄/套筒连接处远端未出现骨溶解。平均随访12年时，假体柄仍保持稳定，且未报告模块化连接处出现故障。
