A 35-year-old man with chronic lower back pain has leg length inequality that began to appear around age 10, and resulted in his right femur being shorter than his left femur. You also diagnose side bending and rotation changes in his lumbar spine, with a radiologically-documented sacral base unleveling of ¾ inch. Your patient agrees to try heel lift therapy. How much of a heel lift does he need, and on which side?
A. 1/4 inch, left side
B. 1/4 inch, right side
C. 3/4 inch, left side
D. 3/8 inch, left side
E. 3/8 inch, right side
Answer: B
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Biomechanics
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