在TOUCH®®中,杯子位置和子类型之间的关系:一个CAD模拟和尸体研究
Lionel Athlani1, Nicolas Gualdes2, Mariette Bergere2
1Department of Hand Surgery, Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, Switzerland.
The Journal of hand surgery, European volume
|March 16, 2026
概括
优化TOUCH®假肢放置是防止撞击的关键. 适当的前后杯角 (PAST) 和部类型选择,特别是使用直用于前侧倾斜,可以将指伸展期间的风险降到最低.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械工程 生物机械工程
- 假肢设计 假肢设计
背景情况:
- 在TOUCH®假肢中,假肢内是有风险的.
- 相对于梯形的近接关节表面 (PAST) 和部类型 (偏移与直线) 的杯角可能会影响这种风险.
研究的目的:
- 评估Touch®假肢中前后杯角 (PAST),部类型和假肢内冲刺之间的关系.
- 确定最佳的假肢放置,以最大限度地降低撞击风险.
主要方法:
- 计算机辅助设计 (CAD) 模拟,使用不同的杯子方向 (0-30°前后) 和子类型 (15°偏移,0°直).
- 尸体研究 (24只手) 使用不同的杯子倾斜 (0-15°前方,≥15°前方,0-15°后方) 和部类型.
- 模拟指的曲/延伸,以确定碰撞点.
主要成果:
- 对于两种子类型的中性杯子位置,都没有发生任何冲击.
- 前方杯子倾斜增加了指伸展期间碰撞的风险.
- 阻塞发生在15°前倾斜与偏移的部和30°前倾斜与直的部 (CAD).
- 尸体结果显示在40°延伸处的撞击,前倾斜15° (偏斜部) 和前倾斜30° (直立部).
- 子的长度没有影响撞击风险.
结论:
- 前后杯角显著影响了人造假体内入的风险.
- 最佳的杯子放置与PAST平行,以最大限度地减少撞击.
- 对于向前倾斜15°或更多的杯子,建议保持直立的子,以减少指伸展时的撞击.
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