Last revised by Daniel J Bell on 3 Sep 2019

Strain refers to injury of muscles and tendons and should not be confused with sprain which refers to injury to ligaments and capsules. One way to remember the distinction is that strain (with a T) is for tendons (which attach to muscle).

These terms should not be used interchangeably lest you become the butt of an orthopedic surgeon's derision.

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Cases and figures

  • Case 1: rectus abdominis muscle strain
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