Effet de l’atélocollagène sur la cicatrisation des réparations de la racine méniscale médiale à l’aide du point Mason–Allen modifié

Abstract Introduction Addition of collagen during medial meniscal root repair (MMRR) may improve meniscal root healing minimizing fibrous scar tissue formation. The purpose of this study was to verify the effect of atelocollagen on MMRR using the modified Mason–Allen stitch when compared with that of the conventional pull-out repair by assessing the clinical and radiological outcomes. Hypothesis It was hypothesized that atelocollagen would enhance the healing effect on the meniscal root following MMRR. Moreover, we presumed that MMRR with atelocollagen application might reduce meniscal extrusion by promoting healing. Materials and methods A total of 47 patients who underwent MMRR using the modified Mason–Allen stitch between 2015 and 2016 were included, and they were divided into group A (atelocollagen application; n = 25) and group R (MMRR without atelocollagen application; n = 22). The postoperative clinical outcomes, radiological outcomes, and meniscal root healing and medial compartment cartilage status on follow-up magnetic resonance imaging (MRI) were compared between the two groups. Results Mean follow-up duration was 26.4 ± 4.8 months in group A and 27.1 ± 5.2 months in group R (p = 0.598). Mean duration from surgery to follow-up MRI was 12.5 ± 1.4 months in group A and 12.7 ± 1.2 months in group R (p = 0.604). The subjective knee scores improved significantly in both groups at the last follow-up (all, p  Discussion Atelocollagen application during MMRR yielded lower IMSIs, suggesting better healing, than did conventional pull-out root repair. However, this technique could not demonstrate beneficial effects on meniscal extrusion. Level of evidence III, retrospective case-control study.