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Revista de la Asociación Argentina de Ortopedia y Traumatología
versão On-line ISSN 1852-7434
Resumo
LLARENA-BARROSO, Cristina; MORALES-ORTEGA, Alejandro e LOPEZ OROSA, Carlos. Fracturas basicervicales tratadas con clavo intramedular con tornillo cefálico único. Serie de casos y revisión bibliográfica. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2023, vol.88, n.5, pp.485-492. ISSN 1852-7434. http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2023.88.5.1679.
Background: Given the rotational instability of basicervical fractures, recent studies suggest using a spiral blade, a second screw or compression screws instead of single-screw cephalomedullary nail fixation. Objective: The aim of our study is to analyze the outcomes of basicervical fractures treated with single-screw cephalomedullary nails. Materials and Methods: This is a retrospective study based on a case series identified from all extracapsular femoral fractures treated with single-screw cephalomedullary nails in our hospital from 2016 to 2020. Clinical records and radiographs from 269 patients were reviewed; only 12 (6.4%) subjects met inclusion criteria (two-part non-pathologic fractures with at least a 9-month follow-up). Different factors were evaluated, including: tip-apex distance, cephalic screw position, reduction quality, surgical time, complications and re-operations; differences between patients who experienced complications and those who did not were also assessed. Results: Four subjects out of the 12 included patients experienced fixation failure and implant cut-out. There were no statistically significant differences between subjects with and without cut-out regarding the analyzed variables. Conclusions: The high cut-out rate observed in our sample suggests considering the hypothesis that single-screw cephalomedullary nail fixation should not be used in basicervical fractures. Alternative fixation devices capable of controlling the high rotational instability of these fractures may be preferable.
Palavras-chave : Basicervical fracture; cut-out; single-screw; cephalomedullary nail.