• Mete Gedikbaş, Orhan Balta, Tahir Öztürk, Firat Erpala, Mehmet Burtaç Eren, and Eyup Cagatay Zengin.
• Department of Orthopaedics and Traumatology, Turhal State Hospital, Tokat-Türkiye.
• Ulus Travma Acil Cerrahi Derg. 2023 Jul 1; 29 (7): 811817811-817.

BackgroundWe aimed to show the effect of rotational deformity on the development of cubitus varus deformity (CVD) com-plication after supracondylar humerus fracture surgery.MethodsPatients with Gartland type II, and more severe fractures treated with Closed reduction and percutaneous pinning alone were included in the study. Rotational deformity was assessed with the formula described by Henderson et al. Patients with rotational deformity >10° were included in Group 1, and patients with deformity <10° in Group 2. In terms of CVD development, patients were evaluated with the Baumann angle measurements made on the carrying angle and final follow-up radiographs. Patients who developed CVD were divided into two groups: Group A included patients who developed CVD and Group B included patients who did not develop CVD. The cosmetic and functional results were evaluated using Flynn criteria.ResultsEighty-eight patients who met the inclusion criteria were enrolled in the study, 32 were female and 56 were male. The mean age at the time of surgery was 6.0±2.8 years and the mean follow-up time was 5.1±2.5 years. Based on measurements, Group 1 had 13 patients and Group 2 had 75 patients. Only four of the 88 had developed CVD. Three of these patients had a rotational deformity of ≥20°. The mean age of patients in group A was 2.1 years and the mean carrying angle was 5.7°±1.5° varus (P<0.001). According to the Flynn cosmetic criteria, Group A and Group 1 had significantly worse outcomes (P<0.001).ConclusionIn conclusion, fixation of the distal fragment in rotation may be associated with CVD and intraoperative assessment is of great value to avoid long-term deformity and cosmetic degradation.

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