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Joint reaction forces at the first MTP joint in a normal elderly population
U P Wyss1, I McBride, L Murphy
1Apps Medical Research Center, Kingston General Hospital, Ontario, Canada.
Journal of Biomechanics
|January 1, 1990
Summary
This study calculated joint reaction forces in the foot during gait for elderly individuals. Findings reveal peak loads align with the metatarsal axis, crucial for designing artificial MTP joints.
Area of Science:
- Biomechanics
- Orthopedics
- Gerontology
Background:
- Joint reaction forces are commonly calculated for major lower limb joints during gait.
- Limited research exists on joint reaction forces in smaller joints like the toes.
Purpose of the Study:
- To calculate joint reaction forces in the first MTP joint during the push-off phase of gait in elderly subjects.
- To provide data essential for designing optimal fixation of artificial first MTP joints.
Main Methods:
- Calculation of joint reaction forces between the metatarsal head and proximal phalanx, and metatarsal head and sesamoids.
- Analysis focused on the push-off phase of gait in ten normal elderly subjects.
Main Results:
- Maximum resultant loads in the analyzed articulations were found to be close to the longitudinal axis of the metatarsal.
- Data provides insight into the biomechanics of the first MTP joint in an elderly population.
Conclusions:
- Understanding joint reaction forces in the first MTP joint of the elderly is vital for prosthetic design.
- This research contributes to the development of improved fixation methods for artificial MTP joints.