Ritter M A, Campbell E D
Clin Orthop Relat Res. 1986 Jun(207):77-82.
Six simultaneous bilateral total hip arthroplasties were performed with an ingrowth prosthesis in one hip and a conventional cemented prosthesis in the contralateral hip. Clinical and radiographic examinations of the patients were obtained for a maximum of three years for an early comparison of the two prostheses. Although no functional difference was established between the two arthroplasties, all patients preferred the cemented hip because of less pain and no limp. Range of motion and functional ability of the hips were identical in all evaluations. Pain was slightly higher in the hip incorporating the ingrowth prosthesis, and walking ability was better with the cemented hip. No radiolucency was evident around the cemented femoral component or around either acetabulum in any of the patients. Half of the patients encountered initial subsidence of the ingrowth prosthesis, which later stabilized and proved to be insignificant. Ectopic bone formed on the posterior femoral neck of all the ingrowth hips. Sclerotic lines were observed in four of these patients but showed no correlation to the physical ability of the patients. Therefore, the ingrowth or uncemented hip arthroplasty appears to be functionally equivalent to the cemented hip arthroplasty and more symptomatic.
同时进行了6例双侧全髋关节置换术，一侧髋关节使用骨长入型假体，对侧髋关节使用传统骨水泥固定假体。对患者进行了最长三年的临床和影像学检查，以便早期比较这两种假体。尽管两种关节置换术之间未发现功能差异，但所有患者都因疼痛较轻且无跛行而更喜欢骨水泥固定的髋关节。在所有评估中，髋关节的活动范围和功能能力相同。植入骨长入型假体的髋关节疼痛略高，而骨水泥固定髋关节的行走能力更好。在任何患者中，骨水泥固定的股骨部件周围或髋臼周围均未发现明显的透光线。一半的患者出现了骨长入型假体最初的下沉，随后稳定下来且证明无明显影响。所有骨长入型髋关节的股骨后颈均形成了异位骨。在其中4例患者中观察到硬化线，但与患者的身体能力无关。因此，骨长入型或非骨水泥型髋关节置换术在功能上似乎与骨水泥型髋关节置换术相当，但症状更多。
