A probe for treating shoulders and other joints has a working end which includes a first element for cutting soft tissue, a second element for applying RF energy to tissue, and a third element for cutting or burring bone. The probe is introduced to a working space in a patient's joint, such as the patient's subacromial space, typically under endoscopic viewing. Soft tissue is cut with the first element. Radiofrequency energy is applied with the second element to ablate or cauterize tissue, while bone may be burred with the third element. Successive treatments steps are performed by reorienting the treatment device in situ with removal or withdrawal of the working end.