Joint Replacement Center of Korea, Ewha Womans University School of Medicine, Seoul, Korea.
J Arthroplasty. 2012 Apr;27(4):559-63. doi: 10.1016/j.arth.2011.06.020. Epub 2011 Aug 19.
We compared the clinical and radiologic results in 55 patients (110 hips) associated with proximally porous-coated titanium stems that were identical in geometry but differed with regard to proximal surface treatment (with or without hydroxyapatite coating). The mean age at the time of the operation was 46.3 years (27-63 years), and mean length of follow-up was 15.6 years (15-16 years). The mean Harris hip score in both groups improved from 39 points and 41 points, respectively, to 93 and 91 points, respectively, at the last follow-up. After 16 years, the cumulative survival for the stem was 100% in both groups and for the cup was 89% in both groups. After long-term follow-up, hydroxyapatite coating on the porous surfaces did not improve or diminish the results of total hip arthroplasty.
我们比较了 55 例（110 髋）与近端多孔涂层钛柄相关的临床和影像学结果，这些柄在几何形状上完全相同，但在近端表面处理（有无羟基磷灰石涂层）方面有所不同。手术时的平均年龄为 46.3 岁（27-63 岁），平均随访时间为 15.6 年（15-16 年）。两组的平均 Harris 髋关节评分分别从 39 分和 41 分提高到最后随访时的 93 分和 91 分。16 年后，两组的柄的累计生存率均为 100%，杯的累计生存率均为 89%。长期随访后，多孔表面的羟基磷灰石涂层并未改善或降低全髋关节置换术的效果。
