Capone R A
Division of Plastic Surgery, Shadyside Hospital, Pittsburgh, Pa, USA.
Plast Reconstr Surg. 1995 Sep;96(3):667-72. doi: 10.1097/00006534-199509000-00020.
Flexible implant arthroplasty of the radiocarpal joint has come under increasing criticism since its introduction in 1967. Recent long-term reviews report high failure and revision rates. In 1984, titanium grommets became available. By providing a protective interface between sharp bone edges and the flexible hinge device, this refinement raised hope for improved performance. This report provides the first long-term review of the grommet's efficacy. The overall success rate was 95 percent. No implant fractures were observed in the setting of nondisplaced grommets; however, one implant did fracture in association with grommet displacement. Radiographic review of cortical bone density showed an increase in the region of the grommet in virtually all cases. These results offer significant improvement over those reported for flexible implant radiocarpal wrist arthroplasties done without protective grommets. The results suggest a wider indication for implant arthroplasty of the radiocarpal joint and hold promise for longer-term durability.
自1967年引入以来，桡腕关节柔性植入物关节成形术受到越来越多的批评。近期的长期综述报告显示其失败率和翻修率很高。1984年，钛索环问世。通过在尖锐的骨边缘与柔性铰链装置之间提供一个保护界面，这一改进为性能提升带来了希望。本报告首次对索环的疗效进行了长期综述。总体成功率为95%。在未移位索环的情况下未观察到植入物骨折；然而，有一个植入物在索环移位时发生了骨折。对皮质骨密度的影像学检查显示，几乎所有病例中索环区域的骨密度都有所增加。这些结果比那些未使用保护性索环的桡腕关节柔性植入物关节成形术所报告的结果有显著改善。结果表明桡腕关节植入物关节成形术的适应证更广泛，并有望实现更长期的耐用性。
