A recently published research paper showed “After hamstring tendon ACL reconstruction, the implanted grafts can transform into ACL-like tissue with a similar ultrastructure and metabolism, implying their usefulness as grafts.”
Ligamentization of Autogenous Hamstring Grafts After Anterior Cruciate Ligament ReconstructionMidterm Versus Long-term Results
Dong et al , Am J Sports Med August 2015 vol. 43 no. 8 1908-1917