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Related Experiment Videos

Attritional flexor tendon ruptures by an old lunate dislocation.

G H Johnston1, C V Bowen

  • 1Department of Orthopaedic Surgery, University of Saskatchewan, Saskatoon, Canada.

The Journal of Hand Surgery
|September 1, 1988
PubMed
Summary

Spontaneous flexor tendon rupture is rare, especially without wrist joint issues. This case highlights a delayed rupture in an untreated palmar lunate dislocation, emphasizing the importance of addressing wrist pathology.

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Area of Science:

  • Orthopedic Surgery
  • Hand and Wrist Surgery
  • Musculoskeletal Disorders

Background:

  • Untreated palmar lunate dislocations can lead to chronic wrist instability.
  • Attritional tendon degeneration is a known complication of joint pathology.
  • Spontaneous flexor tendon rupture is uncommon, particularly without significant preceding symptoms.

Observation:

  • A 76-year-old male presented with attritional disruption of the extrinsic flexor tendons to the ulnar two fingers.
  • The tendon disruption occurred over 40 years after an initial, untreated palmar lunate dislocation.
  • The patient reported no chronic pain or median nerve compression prior to the tendon rupture.

Findings:

  • This case demonstrates a rare instance of spontaneous flexor tendon rupture.

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  • The findings suggest a potential long-term consequence of uncorrected palmar lunate dislocation.
  • The absence of typical predisposing factors like pain or nerve compression underscores the unique nature of this presentation.

    • Implications:

    • Highlights the potential for delayed, severe complications from untreated wrist injuries.
    • Suggests that even asymptomatic, chronic wrist joint pathology can predispose to tendon failure.
    • Emphasizes the need for thorough evaluation and management of lunate dislocations to prevent long-term functional deficits.