Reproduced with kind permission from www.patient.co.uk:
This procedure is generally only considered if other treatments have failed. It is not clear yet how effective this treatment is and more research is needed. You should discuss the possible benefits and risks with your doctor before you have the procedure.
Blood is taken from you and then injected into the area around the damaged tendons at your elbow. It is thought that the blood helps to heal the tendons. A local anaesthetic is often given as a pain relief during the procedure. Several treatment sessions may be needed. You may need to wear a splint after the procedure and will often be offered physiotherapy.
Possible problems with this procedure include pain, bruising, damage to other structures near the tendon (such as nerves or blood vessels) and infection.
