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    • 4. 发明公开
    • DIGITAL JOINT ARTHROPLASTY
    • 数字联合ARTHROPLASTY
    • EP1758524A1
    • 2007-03-07
    • EP05755916.3
    • 2005-06-23
    • De Villiers, MalanBlackbeard, Graham Alan
    • DE VILLIERS, Malan, South. Impl. Office Park Bld10MENNEN, Ulrich
    • A61F2/42
    • A61F2/4241A61F2002/30754A61F2002/30772A61F2002/4243
    • The invention concerns a digital joint arthroplasty (10). The arthroplasty has a stemless, unitary body having opposite sides (12, 14) at least one of which is formed with a curved concavity shaped to receive, in articulated manner, a bone end in an MCP, PIP or DIP joint. In some embodiments, both of the opposite side surfaces are concavely curved while in other embodiments, only one side surface (12) is so curved, the opposite surface (40) being flat. In use the arthroplasty is installed between the shaped ends of bones which meet at the MCP, PIP or DIP joint. The absence of stems means that the installation of the arthroplasty is less surgically invasive than is the case with conventional arthroplasties having intermedullary stems.
    • 本发明涉及数字关节成形术(10)。 所述关节成形术具有无茎的单一主体,所述主体具有相对的侧面(12,14),其中至少一个侧面形成有弯曲的凹面,所述弯曲的凹面被成形为以铰接的方式接收MCP,PIP或DIP接头中的骨头。 在一些实施例中,两个相对侧表面是凹入弯曲的,而在其他实施例中,仅一个侧表面(12)如此弯曲,相对表面(40)是平坦的。 在使用中,关节成形术安装在骨头的成形端部之间,在MCP,PIP或DIP接头处相遇。 茎的缺失意味着关节成形术的安装比传统的具有髓内茎的关节成形术的手术创伤更少。