WEDNESDAY, Aug. 24 (HealthDay News) -- Clinical outcomes and health care costs at five years are not significantly affected by the addition of patellar resurfacing to the surgical procedure during total knee arthroplasty, according to a study published Aug. 17 in the Journal of Bone and Joint Surgery.
Suzanne Breeman, Ph.D., from the University of Aberdeen in the United Kingdom, and colleagues examined the five-year clinical outcomes, complications, and health care costs of patellar resurfacing during total knee arthroplasty. A total of 1,715 patients were randomized to receive or not receive patellar resurfacing during the primary arthroplasty procedure. The outcome measure was functional status as measured by the Oxford Knee Score (OKS), the Short Form-12, the EuroQoL 5D, cost, cost-effectiveness, and the requirement for subsequent knee surgery.
The investigators found at five years postoperatively, the mean OKS was 35 points for both groups. The mean OKS value or other outcomes were not significantly different between the two groups. Domed or anatomic status of the patella did not affect the outcomes. The two groups did not differ significantly with respect to prevalence of knee-related readmission, minor or intermediate reoperation, or subsequent patella-related surgery, as well as total health care cost for the primary arthroplasty, subsequent monitoring, and any revision surgery.
"On the basis of five years of follow-up, there is no clear benefit to resurfacing the patella during total knee arthroplasty, as resurfacing had no significant effect on patient functional status, total treatment cost, or patient quality of life," the authors write.
Several of the study authors disclosed financial relationships with the biomedical industry.
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