Biomechanical comparison of vertical suture techniques for repairing radial meniscus tear

Journal of Experimental Orthopaedics

Shian Chao Tay¹  Yoke Rung Wong¹  Denny Tijauw Tjoen Lie²  Guanqi Hang²  Andy Khye Soon Yew²  Siaw Meng Chou³ 

[1] Department of Hand Surgery, Singapore General Hospital, 20 College Road, 169865, Singapore, Singapore;Department of Orthopaedic Surgery, Singapore General Hospital, 20 College Road, 169865, Singapore, Singapore;School of Mechanical & Aerospace Engineering, College of Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore, Singapore;

关键词: Radial tear;    Meniscus repair;    Medial meniscus;    Mattress suture;    Arthroscopy;   

DOI  :  10.1186/s40634-020-00296-w

来源: Springer

【 摘 要 】

PurposeThe aim of this study was to (1) develop suture techniques in repairing radial meniscal tear; (2) to compare the biomechanical properties of the proposed repair techniques with the conventional double horizontal technique.MethodsThirty-six fresh-frozen porcine medial menisci were randomly assigned into four groups and a complete tear was made at the midline of each meniscus. The menisci were subsequently repaired using four different repair techniques: double vertical (DV), double vertical cross (DVX), hybrid composing one vertical and one horizontal stitch, and conventional double horizontal (DH) suture technique with suturing parallel to the tibia plateau. The conventional double horizontal group was the control. The repaired menisci were subjected to cyclic loading followed by the load to failure testing. Gap formation and strength were measured, stiffness was calculated, and mode of failure was recorded.ResultsGroup differences in gap formation were not statistically significant at 100 cycles (p = .42), 300 cycles (p = .68), and 500 cycles (p = .70). A trend was found toward higher load to failure in DVX (276.8 N, p < .001), DV (241.5 N, p < .001), and Hybrid (237.6 N, p < .001) compared with DH (148.5 N). Stiffness was also higher in DVX (60.7 N/mm, p < .001), DV (55.3 N/mm, p < .01), and Hybrid (52.1 N/mm, p < .01), than DH group (30.5 N/mm). Tissue failure was the only failure mode observed in all specimens.ConclusionOur two proposed vertical suture techniques, as well as the double vertical technique, had superior biomechanical properties than the conventional technique as demonstrated by higher stiffness and higher strength.

【 授权许可】

CC BY