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Isolated Radiopalmar Dislocation of Fifth Carpometacarpal Joint: A Rare Presentation.

Atmananda S Hegde1, R M Shenoy, Salauddin Arif

  • 1Department of Orthopaedics, Kasturba Medical College, Mangalore, India. atmanandahegde@gmail.com.

American Journal of Orthopedics (Belle Mead, N.J.)
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Summary

Carpometacarpal (CMC) joint dislocations are rare hand injuries. This case highlights a unique radiopalmar dislocation of the fifth CMC joint, emphasizing surgical management for successful outcomes.

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Area of Science:

  • Orthopedic surgery
  • Hand surgery
  • Traumatology

Background:

  • Carpometacarpal (CMC) joint dislocations represent less than 1% of all hand injuries.
  • Dorsal dislocations are more common than volar types.
  • Palmar dislocations include ulnopalmar and radiopalmar classifications.

Observation:

  • Isolated radiopalmar dislocation of the fifth CMC joint is exceedingly rare in English literature.
  • Diagnosis in this case was delayed.
  • Initial closed reduction attempts were unsuccessful.

Findings:

  • The rare injury required open reduction and Kirschner-wire fixation for successful treatment.
  • This case underscores the challenges in managing uncommon CMC joint dislocations.

Implications:

  • Highlights the importance of timely diagnosis and appropriate management for rare CMC joint injuries.
  • Contributes to the limited literature on isolated fifth CMC radiopalmar dislocations.
  • Informs surgical strategies for complex hand trauma.