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Bones of the Upper Limb: Ulna01:15

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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
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Isolated Volar Dislocation of the Distal Radioulnar Joint: A Case Report.

Ruben Dukan1, S Kassab Hassan1, J G Delvaque1

  • 1Department of Orthopaedic Surgery, University Hospital Lariboisiere, 75010, Paris.

Journal of Orthopaedic Case Reports
|September 21, 2020
PubMed
Summary

Early diagnosis and treatment of isolated distal radioulnar joint (DRUJ) dislocations are crucial for optimal recovery. This rare injury, often missed, can lead to significant morbidity if not promptly managed.

Keywords:
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Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Traumatology

Background:

  • Isolated distal radioulnar joint (DRUJ) dislocations are rare and frequently misdiagnosed.
  • Delayed diagnosis of DRUJ injuries can result in substantial functional impairment and morbidity.

Observation:

  • A case of an isolated volar DRUJ dislocation in a 36-year-old male is presented.
  • Diagnosis was achieved through clinical examination, X-rays, and CT scans.
  • Non-operative management included closed reduction and immobilization in a cast for six weeks.

Findings:

  • Early diagnosis facilitated successful non-operative management.
  • MRI confirmed the absence of surgical capsuloligamentous lesions.
  • The patient experienced a favorable outcome with excellent functional recovery.

Implications:

  • Highlights the importance of early recognition and management of isolated DRUJ dislocations.
  • Emphasizes that prompt diagnosis and treatment lead to favorable functional outcomes.
  • Suggests non-operative treatment may be sufficient for select cases without associated ligamentous injury.