Predictors for secondary patellar resurfacing after primary total knee arthroplasty using a "patella-friendly" total knee arthroplasty system.

摘要: Patellar resurfacing (PR) in total knee arthroplasty (TKA) is still one of the major controversies orthopaedic surgery today. The aim present retrospective case-control study was to identify predictors for secondary patellar (SPR) after initial TKA create a rationale surgeons decide which patients resurface primarily. It hypothesized that proper implantation and component positioning as well maintained physiological geometry will lead reduced risk SPR. Overmore, it intrinsic factors like overweight might also have an influence on need After identification suitable age/sex matching 1:2 fashion, 29 cases (TKA/SPR) 58 controls were included screened available clinical epidemiological data radiographic primary TKA. Pearson’s correlation analysis logistic regression modeling performed possible SPR following Binary able correctly classify 88.5% into case or control groups. indicated patella tilt, height, thickness delta angle significant An increase width by 1 mm SPR, while reduce it. tilt 1° Finally, again Easy accessible measurements been identified Although indication PR may remain controversial topic, has proposed this support objectively estimating individual patient’s prior measuring width, thickness. regarding surgical aspects TKA, tibial shown be importance