Fig. 4From: Arthroscopic suture retrievers and shuttles: a biomechanical investigation of the force required for tendon penetration and defect sizeMean values of all instruments in N/mm are shown. Brackets indicate statistical comparison. Suture Retrievers needed significantly more force to pierce the tendon than Suture Shuttles. The angled Suture Retrievers needed significantly more force to pierce the tendon than straight Suture Retrievers. There was no significant difference of straight and angled instruments within the group of Suture Shuttles. *p = <0.05 † p= > 0.05Back to article page