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Ankle-foot prosthesis with articulated human bone endoskeleton: force-deflection and fatigue study
1Department of Surgery, Santokba Durlabhji Memorial Hospital, Jaipur, Rajasthan, India.
Journal of Rehabilitation Research and Development
|January 1, 1991
Summary
This study found that ankle-foot prostheses using human bone endoskeletons are durable and functional. These prostheses showed no structural or functional changes after millions of cycles, proving their long-term viability.
Area of Science:
- Biomedical Engineering
- Orthopedics
- Prosthetics
Background:
- Ankle-foot prostheses are crucial for mobility in amputees.
- Developing durable and functional prosthetic devices is an ongoing challenge.
Purpose of the Study:
- To evaluate the durability and function of novel ankle-foot prostheses.
- To assess the suitability of human bone endoskeletons in prosthetic design.
Main Methods:
- Fabricated three ankle-foot prostheses using human bone endoskeletons in a rubber shell.
- Conducted radiographic and force-deflection analyses.
- Performed cyclic dorsiflexion testing up to 3 million cycles.
Main Results:
- No structural or functional deterioration was observed after extensive cyclic testing.
- The bone endoskeleton prostheses demonstrated comparable performance to the Jaipur prosthesis.
- Formalin-fixed human foot bones maintained integrity under prolonged stress.
Conclusions:
- Formalin-fixed human foot bones with intact articulations are suitable for ankle-foot prostheses.
- These prostheses offer a durable and functional solution for long-term use.
- The endoskeleton design shows promise for advanced prosthetic applications.