The incidence of meniscal cyst formation following meniscal repair using the all-inside suture anchor device is comparable to conventional techniques.

Purpose: Post-operative meniscal cyst formation occurs following all-inside device meniscal repair. This study aimed to compare the incidence of cysts in patients who underwent meniscal repair with and without all-inside suture devices. Methods: This retrospective study included 227 knees that underwent meniscal repair between 2021 and 2022. The incidence of post-operative meniscal cysts was compared between patients who underwent repair using an all-inside suture anchor device (Group SA) and those who did not use an anchor (Group NA), based on post-operative magnetic resonance imaging (MRI) findings. Risk factors, such as the number of anchors used, were investigated. Using a subgroup analysis, the incidence of meniscal cysts based on the type of device used was investigated. Results: Groups SA and NA comprised 125 and 102 knees, respectively. Group SA had 11 cases of cysts (9% incidence), whereas Group NA had 7 cases (7% incidence), and no statistically significant difference was observed ( Conclusion: The incidence of cysts in patients undergoing meniscal repair with an all-inside suture anchor device was 9%, showing no significant difference compared with Group NA. Cyst incidence was not affected by device type. Level of Evidence: Level III, retrospective comparative study.