Abstract
The relative strength of three suture methods of lacerated tendon were measured by mechanical disruption in effort to determine the strength of suture technique. Fifty-four calcaneal tendons of 27 New Zealand white rabbits were transected at mid-portion and repaired with the three suture techniques: group 1: Kessler suture; group 2: Pennington's modified-Kessler suture; and group 3: augmented-Becker suture technique. Each group was composed of 18 calcaneal tendons. Three groups of rabbits, 9 in each, were, respectively, sacrificed immediately after suture, at 2 weeks postoperatively and at 4 weeks postoperatively. The augmented-Becker repair was strongest in tensile strength and maximum stress at immediate operation, 2 weeks postoperatively and 4 weeks postoperatively. The augmented-Becker repair had the highest modulus of elasticity at time of suture, at 2 and at 4 weeks postoperatively. Tensile strength, maximum stress and modulus of elasticity gradually increased from the time of operation to 4 weeks, but the difference was not of statistical significance at 4 weeks.
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