Partial hemiarthroplasty for the treatment of osteonecrosis of the femoral head - An experimental study in the dog
Partial hemiarthroplasty for the treatment of osteonecrosis of the femoral head - An experimental study in the dog
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DOI：
10.1302/0301-620x.85b6.13854
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发表时间：
2003-08-01
影响因子：
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通讯作者：
Nakamura, T
中科院分区：
文献类型：
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作者：
Ushio, K;Oka, M;Nakamura, T
使用复合骨软骨假体模拟部分半髋关节置换术进行了检查。该装置由聚乙烯醇水凝胶和钛纤维网组成，分别充当人工软骨和多孔人工骨。钛纤维补片设计用作界面材料，可牢固连接到聚乙烯醇凝胶（通过注塑成型）和股骨关节表面（通过骨长入）。我们将其中22个器械植入犬股骨头。对髋臼软骨和滑膜以及假体与骨的附着进行组织学检查，直至术后1年，未发现明显的病理变化，并证实器械与下方骨牢固附着。该器械的主要潜在应用是骨坏死后股骨头的部分表面置换。其他应用可能包括关节表面置换和椎间盘置换。
The use of a composite osteochondral device for simulating partial hemiarthroplasty was examined. The device was composed of a polyvinyl alcohol hydrogel and a titanium fibre mesh, acting as artificial cartilage and as porous artificial bone, respectively. The titanium fibre mesh was designed to act as an interface material, allowing firm attachment to both the polyvinyl alcohol gel (through injection moulding) and the femoral joint surface (through bony ingrowth). We implanted 22 of these devices into canine femoral heads. Histological findings from the acetabular cartilage and synovial membrane, as well as the attachment of the prosthesis to bone, were examined up until one year after operation.No marked pathological changes were found and firm attachment of the device to the underlying bone was confirmed. The main potential application for this device is for partial surface replacement of the femoral head after osteonecrosis. Other applications could include articular resurfacing and the replacement of intervertebral discs.