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Volar Lunate Dislocation: A Case Report.

INTRODUCTION: Perilunate dislocations are rare high-energy injuries which may often have the potential to cause lifelong disability of the wrist if not addressed optimally. Hence, early recognition, diagnosis, and intervention are of paramount importance in the restoring function and prevention of morbidity. Lunate dislocations are the fourth and last stage of perilunate dislocations being extremely rare, with volar dislocations representing <3% of perilunate dislocations.

CASE REPORT: A 24-year-old man suffered from an alleged history of fall from a bike on an outstretched hand following which he developed complaints of pain and swelling in the right wrist. On examination, the patient has relative sensory loss over the lateral half of the palm with no vascular deficit. An accurate range of motion could not be documented due to severe pain. Standard digital X-rays revealed lunate displaced and angulated volarly with a typical "spilled teacup" appearance along with radial and ulnar styloid fractures.

MANAGEMENT: The patient was initially given an attempt of closed reduction which was not successful and was followed with open reduction and internal fixation with both volar and dorsal approach with Kirschner wires. The patient's wrist was immobilized for 6 weeks with below elbow cast with the removal of k wires at 8 weeks after which wrist ROM exercises were started.

RESULTS: The patient was followed up for 6 months and now has a functional range of motion of the wrist with no sensory deficit and is able to continue with his profession as a car mechanic.

CONCLUSION: Mayfield progression Stage 4 perilunate dislocations are uncommon with a poor prognosis if not addressed timely. Hence, these injuries need to be identified early and optimally managed with surgical intervention for a favorable outcome.

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