Inflammation of a joint producing stiffness, warmth, swelling, redness and pain.  Types of arthritis include osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, lupus, gout, pseudo-gout.

Potential treatments include: patient specific interventions including postural realignment therapy, insole treatment, knee bracing, wedged orthoses, walking aids, manual therapy, weight loss, home-based exercises, strength training, knee stability training, Class IV laser, electrical stimulation, ultrasound, and vibration therapy with passive motion.