研究背景：为了减少磨损产物，在全髋置换和后来的全椎间盘置换术中，使用金属-金属联合的假体。
In total hip endoprosthetics and consequently for TDA , metal-on-metal combinations are used with the aim of reducing wear debris.
结论手术切口的选择对髋关节置换的术后功能无影响，但前切口在初次全髋置换术中具有损伤小、恢复快的优势。
Conclusion the choice of approach in primary total hip arthroplasty brings no functional difference, but the anterior approach is a safer technique with faster postoperative recovery.
结果：4名患者中有3名患者最终需要行全髋关节置换术，而这3名患者中有2名在翻修手术后18个内就需要行全髋置换。
Results: Three of the 4 patients eventually required total hip arthroplasty. Two of these 3 patients required total hip arthroplasty within 18 months of revision surgery.
结果：4名患者中有3名患者最终需要行全髋关节置换术，而这3名患者中有2名在翻修手术后18个内就需要行全髋置换。
Results: Three of the 4 patients eventually required total hip arthroplasty. Two of these 3 patients required total hip arthroplasty within 18 months of revision surgery.
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