HIP JOINT FORCE ANALYSIS FROM TELEMETERIZED IMPLANTS

遥测植入物的髋关节力分析

• 批准号: 3157395
• 负责人: DWIGHT T. DAVY
• 金额: $ 6.37万
• 依托单位: CASE WESTERN RESERVE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-01 至 1989-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3157395
• 关键词: biomechanics; chordate locomotion; clinical biomedical equipment; hip prosthesis; human subject; joint prosthesis; limb movement; mathematical model; telemetry

The purpose of the proposed research is to measure the in vivo contact forces active across a total hip prosthesis. This will be accomplished by implanting a series of instrumented, telemeterized hip prostheses which can measure three components of force acting across the joint. The prosthesis which will be used has been developed in previous work at Case Western Reserve University. Data will be obtained at regular intervals over a minimum of one year post surgery for six patients. Data will be obtaining during a variety of activities such as walking, single and double stance, rising from sitting in a chair, as well as others. To obtain a direct comparison of measured forces versus those predicted via gait analysis and mathematical modeling techniques, a series of combined gait analysis and force data acquisition sessions will be carried out. The results will provide for the first time a direct evaluation of the accuracy of the predictive models based on optimization methods for muscle and joint forces. In addition to addressing the question of the validity and accuracy of the force prediction models, the data will be directly useful in defining loading information for design and analysis of hip joint prostheses, and patient care relative to activities of daily living.

拟议研究的目的是测量体内接触 在整个髋关节假体上起作用的力。 这将通过 植入一系列仪器化的遥测髋关节假体， 测量作用在关节上的力的三个分量。 假体 这将是使用已制定了以前的工作在凯斯西方 储备大学。 数据将在一段时间内定期获得。 6例患者术后至少1年。 数据将获得 在诸如行走、单站和双站的各种活动中， 从椅子上站起来，还有其他人。 为了获得测量力与预测力的直接比较， 步态分析和数学建模技术，一系列相结合的 将进行步态分析和力数据采集会议。 的 结果将首次提供准确性的直接评估 基于肌肉和关节优化方法的预测模型 力. 除了解决数据的有效性和准确性问题外， 力预测模型，数据将直接用于定义 用于髋关节假体设计和分析的载荷信息，以及 与日常生活活动相关的患者护理。