To prevent pressure on the axilla, make sure that there are at least 3 finger widths under the axilla.
When fitting the crutch, ensure that the length is measured when there are 3 finger widths under the axilla to a point 6 inches lateral from the heel.
Handgrips are positioned so that there is no pressure on the axilla. The 30 degree elbow flexion is measured by a goniometer, when the patient is upright supporting their weight on the handgrips.
The basic crutch stance is a tripod position, which provides a wide and stable base of support. This means that the crutches are placed 6 inches in front of and 6 inches to the side of each foot. Patients learn the tripod position before learning a specific crutch walking gait.
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