Should the knee be straightened or bent after a skin abrasion?

Whether the knee should be kept straight or bent after a skin abrasion depends on the specific symptoms. The detailed analysis is as follows:

1. Straightening

If the knee abrasion is not severe—limited to minor skin scraping without soft tissue damage, fracture, or similar issues—the knee should generally be kept straight to prevent pulling on the wound, which could cause further tearing or impair healing.

2. Bending

If the knee abrasion is accompanied by soft tissue injury, bone crack, or fracture, the knee should usually be kept bent. A medical professional should disinfect and dress the wound, then immobilize the knee with a cast or brace to promote recovery.

If the knee abrasion is associated with limited range of motion, prompt consultation with an orthopedic specialist is recommended for targeted treatment.