Les résultats de la technique de Latarjet dans l´instabilité antérieur de l´épaule en fonction de la position radiologique de la butée coracoïdienne
2021
Anterior shoulder instability following traumatic dislocation in young adults is a common complication. The Latarjet procedure is the most widely used technique for treating this instability. It is based on coracoid abutment repair of the anterior edge of the glenoid. However, joint exposure during this surgical technique is often limited and makes it difficult to position the abutment. The purpose of this study was to evaluate the result of coracoid abutment procedure on functional outcome in the short and medium term. We assessed the positioning of the coracoid abutment on standard postoperative X-rays and the functional outcome according to Duplay score as well as the satisfaction rate in 70 patients. The average age of patients was 25 and a half years, the sex-ratio was nine, and the mean follow-up period was 6.5 years. Radiological examination showed that coracoid abutment was in subequatorial or non-flush position with respect to the anterior glenoid rim (too internal or protruding in intra-articular position) in 20% of cases. This group showed a drop in mean stability score by 7.68 points, in pain by 10.04 points and in Duplay's overall score by 13.3 points as well as a significant increase in the level of glenohumeral arthrosis. This study highlights that coracoid abutment in subequatorial or non-flush position has deleterious effect on the functional outcome of the Latarjet procedure.
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