Impact of implant design on the Forgotten Joint Score: a retrospective study comparing two contemporary knee designs
Published online: Oct 21 2024
Abstract
This retrospective study was designed to assess two fixed bearing total knee design concepts and their clinical outcomes, particularly in Forgotten Joint Score-12 (FJS-12).
Patients were assessed clinically using the Knee Society Score (KSS). Participants completed an FJS-12 and a short form of the Knee Injury and Osteoarthritis Outcome Score (KOOS-PS). A total of 216 knees –76 with Genesis II and 150 with Vanguard total knee arthroplasties – were included.
Patients in the Vanguard group had significantly better postoperative FJS-12 scores (by 10.1 points, p = 0.019). Differences in KSS subscores also reached the level of statistical significance. KOOS-PS did not differ significantly.
Statistically significant differences between the two knee designs on FJS-12, KS and FS assessments were revealed, but overall, these differences may not reach the threshold of clinical significance.