Leg Weakness After a Broken Leg: Causes & Recovery

When a leg is immobilized in a cast after a fracture this long period of inactivity may lead to loss of muscle and lead to muscle weakness. MDGuidlines.com defines this muscle loss as disuse atrophy.

Leg Immobilization

• Experts at the Mayo Clinic identify splinting or casting of the limb as a common treatment for a fractured leg. They also specify that crutches or a cane may need to be used to keep weight off the injured leg.

Disuse Atrophy

• According to MDGuidelines.com, disuse atrophy is a common side effect of leg immobilization. Disuse atrophy is a loss of muscle mass and will therefore lead to muscle weakness.

Nerve Compression Complications

• MDGuidelines.com also states that disuse atrophy may be compounded if the initial injury was a crush-type injury or if the cast is too tight. These complications may lead to nerve degeneration and a worsening of the atrophy.

Recovery

• The Mayo Clinic states that most muscle mass will usually recover with a well-developed exercise program of physical therapy. The individual's physician or physical therapist should be consulted regarding the specifics of the exercise program and the timeframe involved.

Complications or Non-response

• If an individual fails to recover properly from the physical therapy program within the proper timeframe designed by their physician MDGuidelines.com suggests further consultation with their physician or physical therapist. Consultation is necessary as each case will be different based on the individual case.