HOW MUCH DOES IMPLANT DESIGN AFFECT PATIENT OUTCOMES? (Orthopedics This Week)
While it may sound odd, the impact of implant design on patient-reported outcomes has not been thoroughly examined.
Seeking to fill this void in the literature, researchers from Hospital for Special Surgery (HSS) in New York City examined 4,135 patients who’d received a total knee replacement (TKA) using one of the five most common knee implant brands: Biomet Vanguard (211 patients), DePuy/Johnson & Johnson Sigma (222 patients), Exactech Optetrak Logic (1,508 patients), Smith & Nephew Genesis II (1,415 patients), and Zimmer NexGen (779 patients).
Their work, “Comparison of patient-reported outcomes based on implant brand in total knee arthroplasty: a prospective cohort study,” appears in the June 30, 2019 edition of The Bone and Joint Journal.
“Patients were evaluated preoperatively using the Knee Injury and Osteoarthritis Outcome Score (KOOS), Lower Extremity Activity Scale (LEAS), and 12-Item Short-Form Health Survey questionnaire (SF-12).”
Two years after surgery, outcomes were available for 4,069 patients (98%). The team found no clinically significant differences in the change of KOOS sc...
