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Crutch design for a high-level amputee.

G C Killen, S J Marr, A Sherwood

The Medical Journal of Australia

|November 13, 1976

Summary

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This case study introduces a novel crutch design for a high-level leg amputee, significantly improving mobility and reducing hip and foot issues. The new design addresses excessive pelvic movement by optimizing crutch placement for enhanced lateral stability.

Area of Science:

Orthopedics
Biomechanics
Prosthetics and Orthotics

Background:

A 61-year-old patient with a 33-year-old high-level left-leg amputation experienced persistent hip and foot problems.
Previous use of unsatisfactory crutch designs led to complications and limited mobility.

Observation:

Gait film analysis revealed excessive lateral pelvic movement during ambulation.
The patient's biomechanical gait pattern indicated a need for improved stability.

Findings:

Analysis of lateral stability suggested a medial shift of approximately 5 cm for the crutch support on the ground.
A redesigned crutch incorporating this adjustment was developed and implemented.

Implications:

The novel crutch design led to a significant improvement in the patient's condition and mobility.

Related Experiment Videos

This case highlights the importance of optimized assistive device design for amputees.

Further research into biomechanically informed crutch modifications could benefit individuals with similar mobility impairments.