After regenerating bone and joint this is perhaps a great achievement. Injured muscle could regenerate after addition growth factor to the site.
Veteran’s leg muscle regenerated with pig bladder hormones
A mortar attack in Afghanistan destroyed most of the leg muscles of a US Marine, but now he can walk again after a regenerative treatment using growth factors helped his body regrow the lost tissue.
The matrix is a biological scaffold enriched with proteins and experimental growth-promoting substances that recruit stem cells and other progenitor cells to the site of the injury – stimulating tissue regeneration and rebuilding lost muscle.
First, Hernandez had to build up his remaining leg muscle by exercising rigorously. Then the surgeons inserted the matrix – containing growth hormones derived from pig bladders – into an incision in his thigh. A few weeks later, his leg began growing in both bulk and strength.