In The News

Will the Knee Outlive the Patient? Kaplan-Meier Systematically Overstates the Lifetime Risk of Revision After Total Knee Arthroplasty

Preoperative estimates of lifetime revision risk after total knee arthroplasty (TKA) inform patient counselling and implant selection. These estimates are almost universally derived from Kaplan-Meier survivorship, which treats death as noninformative censoring and therefore estimates the revision incidence that would occur if mortality did not. When competing mortality is substantial, this overestimates the cumulative incidence of revision, and the overestimation scales with age at surgery. Estimates given to younger, fitter patients approximate the true competing-risk incidence, while those given to older patients are systematically inflated.

PDF Read More

There Were No Differences in Total Knee Arthroplasty Function Following High Tibial Osteotomy or Unicompartmental Knee Arthroplasty: More Than 10 Years of Follow-Up

In the United States (U.S.), unicompartmental knee arthroplasty (UKA) is more widely adopted than high tibial osteotomy (HTO) as treatment for medial knee osteoarthritis. Both procedures may ultimately require conversion to total knee arthroplasty (TKA). However, outcomes of TKA following prior HTO or UKA remain incompletely characterized in the U.S. population. Therefore, this study evaluated revision-free survivorship and clinical outcomes of TKA following prior ipsilateral HTO or UKA in a U.S. cohort.

Read More