Fig. 2From: Bunnell or cross-lock Bunnell suture for tendon repair? Defining the biomechanical role of suture pretensionAdditional steps for suture pretensioning. a Tendon purchase of 30 mm on each side of the defect. b Placing the distal part of the suture, including a cross-lock configuration. c The proximal part has a Bunnell configuration. Pretension was applied by pulling the suture in the longitudinal direction. d The tendon area encompassed by the core suture was shortened by 10 %Back to article page