Shoulder Specialist. The difficulty with reading about a procedure is that there is no way to know whether this is the correct option for you personally. Also, the results of any procedure are almost entirely dependent on the skill level and experience of the surgeon doing the procedure so find a surgeon with great experience doing all types of shoulder replacements: http://theshouldercenter.Com/shoulder-replacement.
UW. Dr. Fred matsen described the ream and run technique. His results have not been reproducible in many series and i would question how old you are and make sure of the proper indications as a full shoulder replacement by far and away carries the best overall functional outcomes in both pain relief and motion. I would advise consultation with an experienced surgeon.