Which statement is a guideline for proper crutch sizing?

Which statement is a guideline for proper crutch sizing?

• A. Elbows flexed 0-10 degrees
• B. Elbows flexed 20-30 degrees
• C. Elbows flexed 45-60 degrees
• D. Elbows flexed 90 degrees

Answer: (B)

The main idea is choosing a crutch length that leaves the elbow in a comfortable, light bend when you grip the handpiece. About 20-30 degrees of elbow flexion is ideal. This position lets the forearm transfer weight through the hands efficiently while keeping the shoulder and upper body relaxed, which helps you push the crutch forward smoothly without overloading the joints. If the elbow is nearly straight (0-10 degrees), the arm isn’t in a good position to absorb load and you’ll load the shoulder and wrist awkwardly. If the elbow is very bent (45-60 degrees) or at 90 degrees, the crutch is too short for you, leading to unstable positioning and inefficient gait.