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Carpometacarpal joint dislocations are uncommon hand injuries. These dislocations are usually misdiagnosed due to their non-specific clinical signs and tend to be difficult to identify in simple X-rays. We report our experience in the management of carpometacarpal bone dislocations at a specialized hand surgery center. Patients with carpometacarpal dislocations seen at the emergency department between 2013 and 2017 were included. All patients were treated with either closed reduction and percutaneous pinning (CRPP) or open reduction and internal fixation (ORIF). Postoperative functional assessment was performed at 6 and 18 months using the Disabilities of the Arm, Shoulder, and Hand (DASH) score. Eleven patients were included, 8 (72%) were managed with CRPP and the rest required ORIF (28%). For the functional outcome, we found an average DASH score of 27.9 at the 6 months threshold and of 1.5 at the 18 months threshold. Carpometacarpal dislocations are uncommon and easy to misdiagnose; the hand surgeon should have a high clinical suspicion in patients who sustained high-energy trauma, and imaging studies should be thoroughly evaluated. Closed reduction and percutaneous pinning is a safe and effective treatment option, with long-term good functional results.

Background: Moebius syndrome is a disorder characterized by facial and abducens nerve paralysis. Patients can present a wide range of upper extremity malformations. Literature focused on orthopedic manifestations of Moebius syndrome shows variability in the prevalence and clinical presentation of upper extremity anomalies. The aim of this work is to evaluate the prevalence of upper extremity malformations in patients with Moebius syndrome, clarify its various clinical presentations, and present treatment strategies for their management. Methods: This is a retrospective, cross-sectional study including patients with Moebius syndrome and upper extremity malformations between 2012 and 2019. Data include demographic characteristics, Moebius syndrome subtype, type of malformation, affected extremity, and surgical procedures underwent. Quantitative data were recorded as mean (standard deviation [SD]), and qualitative data were expressed in terms of totals and percentages. Statistical association between Moebius syndrome subtype and development of upper extremity anomalies was evaluated using binary logistic regression. Results: Twenty-five out of 153 patients (16.3%) presented upper extremity malformations (48% male). Mean age of presentation was 9.08 ± 9.43 years. Sixty-eight percent of the malformations were unilateral. The most common presentations included Poland syndrome and simple syndactyly with 8 cases each (32%), followed by 5 cases of brachysyndactyly (20%), 3 cases of amniotic band syndrome (12%), and 1 case of cleft hand (4%). No statistical association was found between Moebius syndrome subtype and odds ratio for development of upper extremity anomalies. Thirteen patients (52%) underwent reconstructive procedures. Conclusion: Poland syndrome and syndactyly are the most common anomalies in patients with Moebius syndrome. Patients may present with a wide range of hand malformations, each patient should be carefully evaluated in order to determine whether surgical treatment is needed and to optimize rehabilitation protocols.

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