Common peroneal nerve dysfunction
Alternative names:
neuropathy - common peroneal nerve; peroneal nerve injury
Symptoms:
- decreased sensation, numbness, or tingling at the top of the foot
- weakness of the ankles or feet
- walking abnormalities
- "slapping" gait (walking pattern)
- foot drop (unable to hold foot horizontal)
- toes drag while walking
Signs and tests:
Examination of the legs may show a loss of muscle control of the legs and feet. Atrophy of the muscles of the foot or leg may be present. There is difficulty with dorsiflexion (lifting up the foot and toes) and with eversion (toe-out movements).
Muscle biopsy or a nerve biopsy may confirm the disorder, but they are rarely necessary.
Tests of nerve activity include: Other tests are guided by the suspected cause of the nerve dysfunction, as suggested by the patients history, symptoms, and pattern of symptom development. They may include various blood tests, X-rays, scans, or other tests and procedures.
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