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[Lunar-triquetral instability].

C Mathoulin1, P Saffar, S Roukoz

  • 1Institut Français de la Main, Paris.

Annales De Chirurgie De La Main Et Du Membre Superieur : Organe Officiel Des Societes De Chirurgie De La Main = Annals of Hand and Upper Limb Surgery
|January 1, 1990
PubMed
Summary

Luno-triquetral instability, causing medial wrist pain, is often diagnosed via arthrography. Surgical fusion (arthrodesis) shows potential but faces challenges like non-union and persistent pain.

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Area of Science:

  • Orthopedics
  • Hand Surgery
  • Radiology

Background:

  • Luno-triquetral instability is an underdiagnosed cause of medial wrist pain.
  • Clinical presentation includes progressive discomfort, with plain radiographs often being inconclusive.

Purpose of the Study:

  • To evaluate the clinical features, diagnosis, and treatment outcomes of luno-triquetral instability.
  • To analyze the effectiveness of luno-triquetral arthrodesis in managing this condition.

Main Methods:

  • Retrospective review of 24 patients with luno-triquetral instability.
  • Diagnosis confirmed by arthrography and cine-radiography.
  • Surgical intervention included 13 luno-triquetral arthrodeses using pins, compression screws, or key grafts.

Main Results:

  • Patients were categorized into isolated luno-triquetral lesions (14) and associated proximal carpal row instabilities (10).
  • Post-operative follow-up averaged 15 months.
  • Key findings included a significant rate of non-union and residual pain following arthrodesis.

Conclusions:

  • Luno-triquetral instability requires advanced imaging for diagnosis.
  • Luno-triquetral arthrodesis presents technical challenges, with non-union and persistent pain being notable complications.
  • Further refinement of surgical techniques is necessary for optimal outcomes.

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