RT Journal Article SR Electronic T1 An 8-year review of upper limb congenital differences at a teaching hospital in Jordan JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1265 OP 1269 DO 10.15537/smj.2024.45.11.20240602 VO 45 IS 11 A1 Samarah, Omar Q. A1 Odeh, Ayham M. A1 Alkhadire, Zaid M. A1 Abu Hejleh, Roaa H. A1 Diab, Yazeed Y. A1 Yousef, Leen N. A1 Hammad, Yazan S. A1 Yasin, Mohamad S. A1 Abu Halaweh, Ahmad A. YR 2024 UL http://smj.org.sa/content/45/11/1265.abstract AB Objectives: To 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.Methods: The 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.Results: A 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%).Conclusion: The 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.