Patellar resurfacing in total knee arthroplasty: does design matter?
No evidence was found to suggest that either patellar resurfacing or the prosthetic design affects the clinical outcome of a total knee arthroplasty. The higher incidence of reoperations in the non-resurfacing group may be attributed to the fact that secondary patellar resurfacing adds a surgical option for the treatment of anterior knee pain following total knee arthroplasty, thus artificially increasing the rate of reoperations in the non-resurfacing group.
Our results confirmed the efficacy of laboratory-acquired HRV in predicting autonomic response to acute emotional stress and suggest that ambulatory and challenge protocols enhance predictive value.