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Lunate Fracture

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Other Names

  • Lunate Fracture

Background

  • Frequency of Lunate fracture is controversial
  • This is due to bipartate lunate seen radiographically in addition to Kienbocks Disease[1]
  • Represent less than 1% of all carpal fractures

Pathophysiology

  • Most common mechanism is axial compression from the Capitate with the wrist in dorsiflexion and ulnar deviation

Risk Factors

  • Unknown

Differential Diagnosis

Carpal Bone Fractures

Differential Diagnosis Wrist Pain


Clinical Features


Evaluation

Radiographs

CT Scan

  • Useful to better define fracture configuration

Classification

  • Palmar pole
  • Distal pole
  • Transverse
  • Osteochondral
  • Transarticular body

Management

Nonoperative

Operative

  • Indications
    • Displaced fracture
    • Evidence of carpal instability

Return to Play

  • Typically 6 weeks
  • Operative cases will require clearance from surgeon

Complications

  • Kienbocks Disease (Avascular necrosis)
  • Scapholunate ligament injury
  • Lunotriquetral ligament injury
  • Nonunion
  • Carpal Instability
  • Arthritis

See Also


References

  1. Suh N, Ek ET, Wolfe SW. Carpal fractures. J Hand Surg Am. 2014
    • Apr;39(4):785-91; quiz 791. doi: 10.1016/j.jhsa.2013.10.030. Review. PubMed PMID: 24679911.
Created by:
John Kiel on 18 June 2019 22:56:42
Authors:
Last edited:
13 October 2022 21:41:59
Categories:
Trauma | Osteology | Wrist | Upper Extremity | Fractures | Acute