But there are some potential problems with this approach. In order to use the arthroscopic technique, portals or openings are made to pass the scope through the joint. Although it is minimally invasive, the joint is still entered for a problem that occurs outide the joint.

There is a risk that nerve tissue or blood vessels will be damaged unintentionally with this procedure. And some experts question whether all the damage present (all that needs repair) is seen clearly with such a small incision. An open incision may alter the soft tissue structures but the surgeon has clear access and a clear view of what's going on inside.

Other complications may depend on the exact type of surgery performed. If the tendon is released, instability and loss of grip strength can occur. Some patients report worse pain than before the procedure. Others report no relief of painful symptoms present before the operation.