Implant migration and failure in total knee arthroplasty is related to body mass index and tibial component size

The Journal of Arthroplasty
Michael E BerendRyan Redelman

Abstract

Aseptic loosening of knee implants is multifactorial. The purpose of this study was to examine the role of body mass index and tibial component size on loosening and migration of total knee arthroplasty (TKA) implants. Six thousand five hundred forty-eight primary TKAs (anatomic graduated components) were studied with aseptic loosening as the end point. A second cohort of 81 TKAs (anatomic graduated components) had radiostereometric analysis beads implanted, permitting implant migration assessment. Patient mass and tibial component surface area were used to calculate potential tibial stresses. We found that higher potential stresses were associated with increased rates of loosening in both metal-backed and all-polyethylene designs. Increased tibial implant migration, in both the varus-valgus and anterior-posterior directions, was associated with higher estimated stresses. We found an increased rate of tibial component loosening and implant migration in patients with a higher mass and smaller tibial component size.

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Citations

Jul 5, 2013·Orthopedics·J Wesley MeskoJianhua Shen
Apr 8, 2014·The Journal of Arthroplasty·Matthew P AbdelAlejandro González Della Valle
Sep 4, 2010·The Journal of Arthroplasty·Michael E BerendRobert A Malinzak
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Sep 28, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Michel P BonninJan Victor
Oct 5, 2016·Journal of Experimental Orthopaedics·Michel P BonninJan Victor
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Sep 14, 2012·Clinical Orthopaedics and Related Research·Klaas Auke NoutaRob G H H Nelissen
Feb 11, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Gaspard FournierElvire Servien
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Nov 1, 2020·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Mohamed Mansour ElzohairyMohamed Elsadek Attia
Jul 14, 2021·Archives of Orthopaedic and Trauma Surgery·Kyle N KunzeBrett R Levine
May 23, 2020·The Journal of Knee Surgery·Ahmed M Samy, Wael Azzam

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