Bartolo Colón active players as of June 11, 2008. Colón did not pitch in 2010 due to ongoing right shoulder and elbow pain and damage to the rotator cuff, ligaments and tendons. In March 2010, he received a transplant of stem cells to repair the damaged tissues in his right shoulder. The orthopedic surgeon who performed the surgery said he had used human growth hormone in previous surgeries of the same type but not with Colón. The surgery was scrutinized by MLB but no wrongdoing was found. Colón then played in the Pre-World Championship in Puerto Rico, winter ball with the Aguilas
Rotator cuff interval is also associated with glenohumeral and biceps instability. The rotator cuff includes muscles such as the supraspinatus muscle, the infraspinatus muscle, the teres minor muscle and the subscapularis muscle. The upper arm consists of the deltoids, biceps, as well as the triceps. Steps must be taken and precautions need to be made in order for the rotator cuffs to heal properly following surgery while still maintaining function to prevent any deteriorating effects on the muscles. In the immediate postoperative period (within one week following surgery), pain can be treated with a standard ice wrap. There are also commercial devices