The treating clinician will take pain measurements on the visual analogue scale and pain catastrophizing on the pain catastrophizing scale at week 1, week 4, week 12 and 6-months. The subjects may be discharged when the clinician feels they have successfully achieved goals or have reached plateau. We anticipate discharge to be an average 4-6 weeks after beginning treatment. We are asking that they continue to track progress until 6 months post-enrollment. The clinician will also ask the patient to rate their global rating of change using the GROC scale at discharge. A detailed registration of the type of interventions the clinicians apply will be submitted to the researchers (including the number of treatment sessions) but there is no restriction on how the clinician treats the patient. In addition, we will ask each participant to list the drugs which they are taking (including changes while they are a participant) and any other non-PT interventions they undergo (ie. surgery, injections, etc). This will be crucial for estimating the 'real' treatment effect of the experimental intervention.