Abstract
Objective: To evaluate whether there is a difference in the fusion rates of subtalar arthrodesis using one or two compression screws. Methods: A retrospective study evaluated the fusion rate of patients subjected to subtalar arthrodesis between January 2012 and December 2016. Fusion was determined clinically using radiographs and, in the case of doubt, computed tomography. Results: The final sample consisted of 80 patients, 78.8% of whom were male, and the mean final evaluation time was 23.27 months. Subtalar arthrosis due to a calcaneal fracture was the etiologic factor in 95% of the patients. The group subjected to arthrodesis with one screw represented 68.75% of the patients, and the group with two screws represented 31.25% of the patients. The incidence of nonfusion was 10.9% in the group where one screw was used against 4.0% in the group where two screws were used, without statistical significance (p-value = 0.425). Conclusion: The use of a second screw did not improve the fusion rates of subtalar arthrodesis. Level of Evidence III; Therapeutic Studies; Retrospective Comparative Studies.
Highlights
RESUMO Objetivo: Avaliar se há diferença nas taxas de fusão da artrodese subtalar com a utilização de um ou dois parafusos de compressão
whether there is a difference in the fusion rates of subtalar arthrodesis using
A retrospective study evaluated the fusion rate of patients subjected to subtalar arthrodesis between January 2012
Summary
Jim Paiva[1], Henrique Mansur[1], Túlio Vieira Coimbra[1], Isnar Moreira de Castro Junior[1]. Métodos: Estudo retrospectivo avaliando a taxa de consolidação dos pacientes submetidos à artrodese subtalar, entre janeiro de 2012 e dezembro de 2016. A ausência de conformidade nos resultados dos estudos, tanto em pacientes quanto em estudos biomecânicos com ossos artificiais e de cadáveres não permite uma definição de qual a técnica ideal para a artrodese subtalar(20,23,24). O objetivo deste estudo foi comparar as taxas de consolidação da artrodese subtalar primária com a utilização de um ou dois parafusos de compressão, avaliando se um parafuso adicional aumenta o índice de fusão articular. A opção por critérios de exclusão rigorosos, como a retirada dos pacientes com comorbidades ou submetidos a cirurgias com a utilização de qualquer tipo de enxerto ósseo deveu-se à analise da influência do número de parafusos na taxa de fusão da artrodese subtalar. Levou-se em conside ração somente a faceta posterior, uma vez que esta é a porção articular que efetivamente apresenta consolidação(25,26)
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