There was no statistically significant difference in SF-36 or WOMAC stiffness and function scores between the surgeons. There was a small difference in WOMAC pain scores between the surgeons'total knee patients, but not total hip patients. The number of primary hip and total knee replacements performed by each surgeon ranged from 151 to 955, with a total of 1896 primary joint replacements by the four surgeons during the study period.