WHITE PAPER Observational study: Standard of care versus XenaGen™ recovery trajectories after total knee arthroplasty. AuthorsAlan P. Xenakis, MD, ScD, MPH, MSAudra Renee Smith Xenakis, RN, BSN, DNP 1. Why is early recovery after TKA so variable despite standardized surgical techniques? Early recovery after TKA is shaped less by surgical mechanics and more by converging … Continue reading Q & A total knee arthroplasty.