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Getting the Proper Fit

You will find 3 basic types of crutches: axillary (underarm), forearm, and platform. All 3 should be fitted properly to help reduce movement problems.

• Axillary crutch: This is the most common type. Wooden or aluminum models can be adjusted easily to your overall height and hand height. In the stationary position, the top of the crutch should extend from a point the width of 2-3 fingers below the armpit (axilla) to a point on the floor 15-20 cm (6-8 in) outside your foot. Your hand should rest at a level that allows you to flex your elbow about 30°. If you are unable to stand, simply subtract 16 inches from your height to determine the crutch length you need.
  
  
• Forearm crutch: This crutch should allow you to flex your elbow 15-30°. The increased flexion allows your arm to bear greater weight. The crutch should contact the floor 5-10 cm (2-4 in) outside and 15 cm (6 in) in front of your foot. The cuff on the crutch should sit 2.5-4 cm (1-1.5 in) below the back of the elbow.
  
  
• Platform crutch: Also known as a triceps crutch, this crutch should contact roughly 5 cm (2 in) below the skinfold of the armpit. The lower cuff should lie 1-4 cm (0.5-1.5 in) below the back of the elbow to avoid bony contact on the arm yet provide stability.