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Delayed Sciatic Nerve Injury Resulting From Myositis Ossificans Traumatica.
Zhe Guan1, Thomas J Wilson2, Jon A Jacobson3
1University of Michigan Medical School, University of Michigan, Ann Arbor, MI(∗).
PM & R : the Journal of Injury, Function, and Rehabilitation
|November 10, 2015
Summary
A motorcyclist with trauma developed sciatic nerve compression from myositis ossificans, a delayed complication. Surgical decompression improved pain and leg function, highlighting this underrecognized condition.
Area of Science:
- Orthopedic Surgery
- Neurology
- Trauma Surgery
Background:
- Motorcyclist trauma can lead to complex injuries.
- Delayed presentation of symptoms can obscure initial diagnosis.
- Peripheral nerve injury requires careful differential diagnosis.
Observation:
- A motorcyclist presented with delayed severe hip pain and lower extremity weakness after trauma.
- Imaging revealed myositis ossificans traumatica compressing the sciatic nerve in the buttock.
- The buttock hematoma required decompression and evacuation.
Findings:
- Surgical decompression and resection of heterotopic calcification were performed.
- The patient experienced improvement in pain and left lower extremity function post-surgery.
- Myositis ossificans traumatica was identified as the cause of sciatic nerve compression.
Implications:
- Myositis ossificans is a potential underrecognized complication of trauma.
- Delayed peripheral nerve injury diagnosis should consider myositis ossificans.
- Early recognition and treatment can improve outcomes for traumatic nerve injuries.

