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CASE REPORT
Year : 2020  |  Volume : 4  |  Issue : 3  |  Page : 160-162

A rare developmental anomaly of the upper limb: Case of ulnar dimelia


1 Department of Surgery, Orthopedic Division, Ministry of the National Guard-Health Affairs; King Abdullah International Medical Research Center; King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
2 College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia

Correspondence Address:
Dr. Majed N Alosaimi
Department of Surgery, Orthopedic Division, Ministry of the National Guard-Health Affairs, Jeddah; King Abdullah International Medical Research Center, Jeddah; King Saud bin Abdulaziz University for Health Sciences, Jeddah
Saudi Arabia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jmsr.jmsr_109_19

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Ulnar dimelia is a rare developmental anomaly, which is characterized by the duplication of ulna, absence of radius, and polydactyly. We report a case of a 5-year-old male child who was referred to our care with an extension deformity of the right elbow, loss of pronation and supination of the forearm, and flexion deformity with radial deviation of the ipsilateral wrist. Initially, we aimed to provide flexion of the elbow to improve his elbow function. The flexion was restricted to <10°. Intraoperatively, the posterior release of the capsule and the resection of the proximal part of the preaxial ulna allowed us to achieve 90° elbow flexion. A unique anatomic variation was a duplicate ulnar nerve on the lateral aspect, which was smaller than the normal ulnar nerve in the medial anatomical location. With three cases only being reported in Saudi Arabia and around 70 worldwide, each case is to be managed individually with a careful management plan.


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