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Updated: Feb 11, 2026

Biomechanical Testing of Murine Tendons
Published on: October 15, 2019
Biomechanical comparison of modified Lim/Tsai tendon repairs with intra- and extra-tendinous knots
Min Kai Chang1, Yoke Rung Wong2, Shian Chao Tay2,3
11 Duke-NUS Medical School, Singapore.
Abstract:
We compared the Lim/Tsai tendon repair technique using an extra-tendinous knot with modification using an intra-tendinous knot. The ultimate tensile strength, load to 2 mm gap force, stiffness, mode of failure, location of failure, and time taken to repair each tendon were recorded during a single cycle loading test in 20 tendons with each repair method. We found that the ultimate tensile strength and 2 mm gap force of the modified Lim/Tsai repair with an extra-tendinous knot (56 SD 5 N and 14 SD 2 N, respectively) were statistically significantly higher than that of the modified Lim/Tsai repair with intra-tendinous knot (51 SD 7 N and 11 SD 2 N, respectively). We conclude that the modified Lim/Tsai repair with extra-tendinous knot is stronger, despite having the same number of core strands.
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