Patients of many ages have increasing pain and reduced function in their joints due to conditions such as osteoarthritis, rheumatoid arthritis and previous trauma.  Joint replacement surgery is commonly required to treat these worn and damaged joints. In these procedures the damaged joint surface is removed and replaced with artificial surfaces normally made from metal (chromium cobalt alloy, titanium), plastic (high density polyethylene) or ceramic which act as alternate bearing surfaces for the damaged joint.

These operations are common but major procedures which require the patient to be in hospital for several days and followed by a significant period of rehabilitation. Josh Kempthorne specialises in arthroplasty from his overseas training and adoption of new technologies such as MAKO knee navigation/robotic-arm assisted surgery.