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Related Experiment Videos

Intramuscular triceps rupture.

S W O'Driscoll1

  • 1Division of Orthopedic Surgery, St. Michael's Hospital, University of Toronto, Ont.

Canadian Journal of Surgery. Journal Canadien De Chirurgie
|April 1, 1992
PubMed
Summary

Nonoperative treatment for complete triceps rupture can be effective, maintaining normal isometric strength but slightly reducing muscle endurance. This approach is suitable for individuals not needing maximal elbow extension endurance.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Muscle Injury Research

Background:

  • Complete intramuscular rupture of the long head of the triceps is a rare injury.
  • Nonoperative management is often considered, but long-term outcomes are not well-documented.

Observation:

  • A 25-year-old kayaker sustained a complete triceps rupture without direct trauma.
  • The patient underwent nonoperative treatment, including strengthening exercises.
  • Prospective follow-up included isokinetic testing over nine years.

Findings:

  • Isometric strength of the triceps returned to normal levels.
  • Muscle endurance showed a mild reduction of 5% to 10% after nine years.
  • The injury mechanism involved forced elbow flexion during triceps contraction.

Implications:

  • Nonoperative treatment appears effective for triceps rupture, particularly for individuals with lower demands on elbow extension endurance.
  • Surgical repair outcomes remain uncertain and require further investigation.
  • This case highlights the potential for nonoperative recovery in specific muscle belly rupture scenarios.

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