Before + After: ACL Tear + ACL Reconstruction with Hamstring Autograft

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When performing an ACL reconstruction with hamstring autograft (using the patients own hamstring tendons), 2 hamstring tendons are used to make up the graft; the semitendinosus and gracilis.  The 2 strands of tendon are sewn together to make one bundle.  Then the bundle is folded onto itself, essentially making a 4-strand graft.