Primary Stability in Cementless Rotating Platform Total Knee Arthroplasty.

The Journal of Knee Surgery
Scott R SmallR A Malinzak

Abstract

Highly porous ingrowth surfaces have been introduced into tibial tray fixation to improve long-term survivorship in cementless total knee arthroplasty. This study was designed to evaluate the effect of porous ingrowth surface on primary stability in the implanted cementless tibial component. Three tibial tray designs possessing sintered bead or roughened porous coating ingrowth surfaces were implanted into a foam tibia model with primary stability assessed via digital image correlation during stair descent and condylar liftoff loading. Follow-up testing was conducted by implanting matched-pair cadaveric tibias with otherwise identical trays with two iterations of ingrowth surface design. Trays were loaded and micromotion evaluated in a condylar liftoff model. The sintered bead tibial tray exhibited slightly lower micromotion than the roughened porous coating in stair descent loading. However, no significant difference in primary stability was observed in condylar liftoff loading in either foam or cadaveric specimens. Cementless tibial trays featuring two different iterations of porous ingrowth surfaces demonstrated both good stability in cadaveric specimens with less than 80 microns of micromotion and 1 mm of subsidence under c...Continue Reading

References

Sep 1, 1990·The Journal of Arthroplasty·P S WalkerR A Zimmerman
Sep 1, 1989·The Journal of Arthroplasty·A J DempseyJ C Millman
Jul 1, 1995·Medical Engineering & Physics·J Y RhoR B Ashman
Apr 1, 1997·The Journal of Bone and Joint Surgery. American Volume·D R DiduchD Font-Rodriguez
Jul 14, 2001·Clinical Orthopaedics and Related Research·V PavoneT P Sculco
Jul 14, 2001·Clinical Orthopaedics and Related Research·R A BergerJ O Galante
Apr 3, 2003·Clinical Orthopaedics and Related Research·Christopher L PetersKent N Bachus
May 5, 2004·Clinical Orthopaedics and Related Research·Ola L A HarryssonJamal F Nayfeh
Feb 5, 2005·The Journal of Bone and Joint Surgery. American Volume·J Dennis BobynM Tanzer
Nov 29, 2005·The Journal of Arthroplasty·Hon-Ming MaChun-Hsiung Huang
Aug 25, 2007·The Journal of Arthroplasty·Adolph V LombardiKeith R Berend
May 12, 2009·The Journal of Arthroplasty·Merrill A Ritter, R Michael Meneghini
Aug 13, 2011·The Journal of Arthroplasty·Safia Bhimji, R Michael Meneghini
Oct 11, 2011·The Journal of Knee Surgery·R Michael MeneghiniMohamed Soliman
Jan 24, 2012·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Mark TaylorDaren Deffenbaugh
Jul 31, 2012·The Journal of Bone and Joint Surgery. British Volume·J T K MeltonC Glezos
May 21, 2013·The Journal of Arthroplasty·Mika NiemeläinenAntti Eskelinen
Jul 26, 2013·Clinical Orthopaedics and Related Research·Mariano Fernandez-FairenRafael Llopis
Aug 27, 2013·Clinical Orthopaedics and Related Research·Mark A MillerKenneth A Mann
Apr 9, 2014·The Journal of Arthroplasty·Safia Bhimji, R Michael Meneghini
Nov 9, 2014·The Bone & Joint Journal·L M KwongC M Mellano
Jan 24, 2015·The Journal of Arthroplasty·Long-Co L NguyenKevin J Bozic
May 14, 2016·The Journal of Arthroplasty·Ivan De MartinoGiorgio Gasparini
Jul 20, 2016·The Journal of Arthroplasty·Merrill A RitterRoger H Emerson
Jan 14, 2017·The Journal of Arthroplasty·Omar A BeheryBrett R Levine
Apr 24, 2017·The Journal of Arthroplasty·Paul D CrookWilliam A Jiranek

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atherosclerosis Disease Progression

Atherosclerosis is the buildup of plaque on artery walls, causing stenosis which can eventually lead to clinically apparent cardiovascular disease. Find the latest research on atherosclerosis disease progression here.