This Guideline attempts to define principles of practice that should produce high-quality patient care. It is applicable to specialists and primary care providers at all levels. This Guideline should not be considered exclusive of other methods of care reasonably directed at obtaining the same results. The ultimate judgment concerning the propriety of any course of conduct must be made by the clinician after consideration of each individual patient situation. Neither IGC, the American College of Rheumatology, the American Association of Hip and Knee Surgeons, nor the authors endorse any product or service associated with the distributor of this clinical reference tool.