# HIP JOINT FORCE ANALYSIS FROM TELEMETERIZED IMPLANTS

> **NIH NIH R01** · CASE WESTERN RESERVE UNIVERSITY · 1987 · $63,741

## Abstract

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.

## Key facts

- **NIH application ID:** 3157395
- **Project number:** 5R01AR035886-03
- **Recipient organization:** CASE WESTERN RESERVE UNIVERSITY
- **SAM.gov UEI:** HJMKEF7EJW69
- **Principal Investigator:** DWIGHT T. DAVY
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 1987
- **Award amount:** $63,741
- **Award type:** 5
- **Project period:** 1985-09-01 → 1989-08-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/3157395

## Citation

> US National Institutes of Health, RePORTER application 3157395, HIP JOINT FORCE ANALYSIS FROM TELEMETERIZED IMPLANTS (5R01AR035886-03). Retrieved via MORVS 2026-10-25 from https://api.morvs.ai/grant/nih/3157395. Licensed CC0.

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