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[Sciatic radiculalgia with muscular hypertrophy].

C Werle1, J L Kuntz, D Ruh

  • 1Service de Rhumatologie, Hôpital de Hautepierre, Strasbourg.

Revue Du Rhumatisme Et Des Maladies Osteo-Articulaires
|October 1, 1992
PubMed
Summary
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Sciatica can lead to calf muscle hypertrophy, a condition causing both increased muscle size and weakness. This post-sciatica muscle hypertrophy involves changes in muscle fibers and may present with abnormal electromyography findings.

Area of Science:

  • Neurology
  • Musculoskeletal Medicine

Background:

  • Sciatica, often caused by lumbar issues, can present with varied neurological symptoms.
  • Muscle hypertrophy is typically associated with increased muscle strength, not weakness.

Observation:

  • A 52-year-old male experienced right calf hypertrophy following lumbar pain and sciatica.
  • Electromyography revealed demyelination in the S1 and S2 nerve root territories.
  • Microscopic examination showed a mix of atrophic and hypertrophic muscle fibers.

Findings:

  • Post-sciatica calf hypertrophy is a genuine muscular hypertrophy accompanied by muscle weakness.
  • Electromyography may exhibit atypical patterns, including repeated complex bursts or continuous motor unit activity.
  • Elevated muscle enzyme levels can be observed in some cases.

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Implications:

  • This condition highlights an unusual response of skeletal muscle to nerve root irritation.
  • Potential causes for muscle fiber hypertrophy include antagonist muscle stretching or abnormal electrical activity.
  • Understanding this phenomenon is crucial for accurate diagnosis and management of sciatica complications.