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Calf hypertrophy due to a iatrogenic sciatic nerve lesion: case report
C Cirafisi1, F Tezzon, B Currò Dossi
1Divisione di Neurologia, Ospedale Civile di Rimini.
Italian Journal of Neurological Sciences
|April 1, 1992
Summary
Iatrogenic sciatic nerve lesions can paradoxically cause calf muscle hypertrophy instead of atrophy. This unusual hypertrophy, potentially due to ephaptic transmission, leads to muscle weakness.
Area of Science:
- Neurology
- Muscle Physiology
Background:
- Nerve damage typically results in muscle atrophy due to loss of neural input.
- Understanding atypical responses to nerve injury is crucial for accurate diagnosis and treatment.
Observation:
- A case of calf hypertrophy was observed following an iatrogenic sciatic nerve lesion.
- This presentation contrasts with the more common muscle atrophy seen after nerve damage.
Findings:
- The calf hypertrophy is hypothesized to result from ephaptic transmission between nerve fibers at the lesion site.
- Muscle weakness occurs because the hypertrophic muscle fibers cannot adequately compensate for co-existing atrophic fibers.
Implications:
- This case highlights that nerve lesions can lead to unexpected muscle hypertrophy.
- Recognizing this phenomenon is important for differentiating it from other causes of calf enlargement and weakness.