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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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Volar capitate dislocation: a case report.

Christina M Ward1

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Summary
This summary is machine-generated.

A rare volar capitate dislocation caused median nerve compression. Delayed diagnosis occurred due to initial radiograph oversight. Open reduction and internal fixation led to a good outcome, highlighting the need for careful radiograph review.

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Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Hand Surgery

Background:

  • Distal capitate dislocations are rare wrist injuries.
  • Median nerve compression can occur secondary to carpal injuries.
  • Radiographic interpretation is crucial for timely diagnosis.

Purpose of the Study:

  • To report a rare case of volar dislocation of the distal capitate.
  • To emphasize the potential for secondary median nerve compression.
  • To highlight the diagnostic challenges and treatment outcomes.

Main Methods:

  • Case report of a patient with volar capitate dislocation.
  • Review of initial radiographs and subsequent imaging.
  • Surgical intervention involving open reduction and internal fixation.
  • Utilized both dorsal and palmar surgical approaches.

Main Results:

  • The volar dislocation of the distal capitate was initially missed on radiographs.
  • Delayed diagnosis led to delayed treatment.
  • Open reduction and internal fixation resulted in a satisfactory outcome.
  • Median nerve compression was successfully managed.

Conclusions:

  • Volar dislocation of the distal capitate is an uncommon but significant injury.
  • Careful radiographic review is essential to avoid missed intercarpal injuries.
  • Prompt diagnosis and surgical management can lead to favorable outcomes in complex wrist trauma.