I had a lady post knee arthroscopy presenting with similar symptoms, she's still having treatment and we did a lot of desensitisation work around her knee, and i got her gently massaging the area whilst doing flexion and extension - possibly effective via Melzack and Wall Pain Gate Theory. Worked well for her...
Interestingly I attended Lorimer Moseley lecture a while back where some of his recent research has shown that if you effect how a patient see's the chronic regional pain syndrome area then it can effect their pain levels - he demonstrated this by putting magnifying and (cant think of word for opposite of magnifiying!) glasses over the affected area. when the patient viewed the area through the magnifying glass, their reported pain level increased, when viewed through the 'make it look smaller glass' their pain level decreased.
Has anyone tried this in clinical practice? I'd be interested to know if people've found it effective.
Thanks!