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Common peroneal nerve palsy after grade I inversion ankle sprain
Evanthia A Mitsiokapa1, Andreas F Mavrogenis, Dimitris Antonopoulos
1Departments of Physical Medicine and Rehabilitation, General University Hospital of Patras, Greece.
Journal of Surgical Orthopaedic Advances
|January 19, 2013
Summary
A mild ankle sprain can cause delayed foot drop due to common peroneal nerve palsy. Early nerve evaluation and electrodiagnostic studies are crucial for diagnosis and recovery.
Area of Science:
- Neurology
- Orthopedics
- Sports Medicine
Background:
- Ankle sprains are common injuries, often considered minor.
- Peroneal nerve injuries can occur but are not always immediately recognized.
Observation:
- A 28-year-old man developed foot drop 48 hours post-grade I inversion ankle sprain.
- Clinical and electrodiagnostic findings confirmed common peroneal nerve palsy.
Findings:
- Conservative treatment and rehabilitation led to complete recovery in 4 months.
- Delayed onset of neurological symptoms is possible after seemingly minor ankle injuries.
Implications:
- Physicians must consider peroneal nerve injury in patients with inversion ankle sprains, even if mild.
- Routine evaluation of peroneal nerve function and early electrodiagnostic testing are recommended.
- Awareness of delayed nerve injury can improve patient outcomes and management strategies.
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