Proximal hamstring reconstruction with a semitendinosus tendon allograft exhibits superior time-zero biomechanical properties compared to reconstruction with an Achilles tendon allograft

Proximal hamstring reconstruction with a semitendinosus tendon allograft showed higher failure load and better preservation of native stiffness compared to an Achilles tendon allograft using the techniques described in this study. While construct differences may contribute to this result, these findings support semitendinosus as the strongest allograft option for proximal hamstring reconstruction.