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Canine femoral stem system

机译:犬股骨干系统

摘要

A canine femoral stem system provides a set of sizes of stems designed to fit in a reamed femoral bone canal with controlled interference. The canine femoral stems can be implanted using either a cemented or cementless procedures. Cementless stems have a porous coating of sintered beads on the tapered proximal section providing interference with reamed femoral canal causing friction and initial stability. The distal end of the stem has a tapered fit and contacts the lower region of the reamed femoral bone canal due to curvature of the stem providing distal stability. The porous coating encourages bone ingrowth in the cementless system or cement penetration resulting in long term stability. The cementless system uses either cast cobalt chromium stems with 250±50 μm beads of cobalt chromium or Ti- 6Al- 4V stem with 250±50 μm beads of chemically pure titanium.
机译:犬股骨柄系统提供了一组尺寸合适的茎杆,这些杆柄设计成可在受干扰的情况下适合扩孔的股骨骨管。犬股骨柄可以采用骨水泥或非骨水泥手术植入。非骨水泥柄在锥形的近端部分有一层多孔的烧结珠子涂层,可与扩孔的股管相干涉,从而引起摩擦和初始稳定性。茎杆的远端具有锥形配合,并且由于茎杆的弯曲而提供了远端的稳定性,因此接触了扩孔的股骨骨管的下部区域。多孔涂层促进了骨水泥在非骨水泥体系中的向内生长或导致骨水泥的长期渗透。非骨水泥系统使用铸造钴铬杆和250-6-50μm的化学纯钛珠,铸造钴铬杆的钴铬珠为250±50μm,Ti-6Al-4V杆为250±50μm的珠。

著录项

  • 公开/公告号US7547328B2

    专利类型

  • 公开/公告日2009-06-16

    原文格式PDF

  • 申请/专利权人 CHRISTOPHER G. SIDEBOTHAM;

    申请/专利号US20040853971

  • 发明设计人 CHRISTOPHER G. SIDEBOTHAM;

    申请日2004-05-26

  • 分类号A61F2/36;

  • 国家 US

  • 入库时间 2022-08-21 19:32:46

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