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Locked volar distal radioulnar joint dislocation.
Fadi Bouri1, Mazhar Fuad1, Ayman Elsayed Abdolenour1
1Orthopedic Department, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar.
International Journal of Surgery Case Reports
|March 27, 2016
Summary
Volar dislocation of the distal radioulnar joint is a rare injury often missed. Pronator quadratus muscle spasm can block reduction, requiring careful assessment and imaging for prompt diagnosis and treatment.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Radiology
Background:
- Volar dislocation of the distal radioulnar joint is an uncommon injury.
- This injury is frequently overlooked in emergency settings, leading to diagnostic delays.
- Literature review reveals limited reported cases with varied causes of irreducibility.
Purpose of the Study:
- To highlight a case of volar dislocation of the distal radioulnar joint.
- To emphasize the importance of clinical suspicion and proper radiographic interpretation.
- To raise physician awareness regarding potential causes of reduction blockades.
Main Methods:
- Case report of a 40-year-old construction worker with a work-related wrist injury.
- Diagnosis confirmed by X-ray showing volar dislocation of the distal ulna.
- Successful reduction achieved under general anesthesia; joint stability assessed post-reduction.
Main Results:
- The patient presented with wrist pain, deformity, and inability to pronate/supinate.
- Initial X-rays indicated a volar dislocation of the distal radioulnar joint.
- Reduction was successful, and the joint remained stable post-procedure.
Conclusions:
- Volar locked dislocation of the distal radioulnar joint is rare but functionally significant.
- Prompt diagnosis requires high clinical suspicion and meticulous radiographic review.
- Pronator quadratus muscle spasm is identified as a key factor impeding reduction in this case.
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