• Omar Q Samarah, Ayham M Odeh, Zaid M Alkhadire, Roaa H Abu Hejleh, Yazeed Y Diab, Leen N Yousef, Yazan S Hammad, Mohamad S Yasin, and Ahmad A Abu Halaweh.
• From the Department of Special Surgery (Samarah, Yasin), School of Medicine; from the School of Medicine (Odeh, Alkhadire, Abu Hejleh, Diab, Yousef, Abu Halaweh), University of Jordan, Amman, Jordan, and from the Sarcoma and Complex Joints Unit (Hammad), Royal National Orthopedic Hospital, Stanmore, London.
• Saudi Med J. 2024 Nov 1; 45 (11): 126512691265-1269.

ObjectivesTo review the types of upper limb congenital differences in patients seen in a tertiary hospital in Jordan and to evaluate the effectiveness of the Oberg-Manske-Tonkin (OMT) system.MethodsThe medical charts and the X-rays of 222 patients with upper limb congenital differences were reviewed. All these cases were categorized using the OMT classification system.ResultsA careful review of the medical charts identified 222 patients with 295 upper extremity anomalies. The prevalence was 45/10000 patients. The mean age of the patients was 6.18±5.5 years, with a higher prevalence in males 54.1%. most cases were malformations 176 (79%) and of these the radial polydactyly was the most common (18.5%). A total of 28 cases of dysplasia were identified. A total of 15 (6.7%) patients were diagnosed with syndromes, of which Poland syndrome showed the highest frequency at 2.3% of the total. The least presentation was for the deformation anomalies (1.4%).ConclusionThe malformation category constituted most of the congenital upper extremity difference in this study. Radial polydactyly was the most common in this category. Considering the regional differences, the need for a well-established healthcare infrastructure is a vital step toward managing and improving the outcomes of these patients.Copyright: © Saudi Medical Journal.

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