As a doctor, replacing the Achilles tendon with a cadaver tendonwould be the absolute last resort for patients with complete and retracted tears of the Achilles tendon. This means that the two pieces of the tendon aren’t connected. For patients with partial tears of the Achilles tendon where the tendon is still intact and not completely torn and retracted, this should not be considered. This is due to the significant complications that can accompany this type of very big surgery. Newer methods of tissue bioengineering look to replace this Achilles tendon replacement surgery. This involves injecting the patient’s own mesnechymal stem cells into the Achilles tendon tears. We have some experience with injecting adult mesenchymal stem cells into torn tendons with very good results. This procedure is much less invasive and involves much less recovery and downtime for the patient.