TELEMETRIC FORCE MEASUREMENTS ACROSS THE HIP AFTER TOTAL ARTHROPLASTY
TELEMETRIC FORCE MEASUREMENTS ACROSS THE HIP AFTER TOTAL ARTHROPLASTY
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DOI：
10.2106/00004623-198870010-00008
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发表时间：
1988-01-01
影响因子：
5.3
通讯作者：
BURSTEIN, AH
中科院分区：
文献类型：
--
作者：
DAVY, DT;KOTZAR, GM;BURSTEIN, AH
一个遥测全髋关节假体植入在一个病人和力的数据。术后31天，双肢站立时关节接触力的大小为体重的1.0倍。在同侧单肢站立期间，关节接触力为体重的2.1倍，并且在步态的站立阶段期间，峰值力通常为体重的2.6至2.8倍，合力位于球的前上部分。在爬楼梯时，力是体重的2.6倍。在峰值载荷下，合力与颈部轴线之间的角度为30至35度，合力与假体平面之间的角度为20度。在爬楼梯或直腿抬高过程中，合力的面外方向显著增加。这些数据提供了植入后第一个月内人工髋关节在日常生活的一些常见活动中必须承受的力的信息。研究结果还提供了对早期恢复进展的深入了解，并展示了在此期间产生的各种力量。
A telemeterized total hip prosthesis was implanted in one patient and force-data were obtained. Thirty-one days postoperatively, the magnitude of the joint-contact force during double-limb stance was 1.0 times body weight. During ipsilateral single-limb stance the joint-contact force was 2.1 times body weight, and during the stance phase of gait the peak force typically was 2.6 to 2.8 times body weight, with the resultant force located on the anterosuperior portion of the ball. During stair-climbing, the force was 2.6 times body weight. At peak loads, the angle between the resultant force and the axis of the neck was 30 to 35 degrees and that between the resultant force and the plane of the prosthesis was 20 degrees. During stair-climbing or straight-leg raising, the out-of-plane orientation of the resultant force increased substantially. These data provide information concerning the forces that must be sustained by prosthetic hip joints during a number of commmon activities of daily living within the first month after implantation. The results also provide insight into the progression of early recovery and demonstrate the variety of forces that are generated during this period.