Correlation of MARS MRI findings with cup position, metal ion levels and function in metal-on-metal total hip arthroplasty

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
Antonios A KoutalosEvert J Smith

Abstract

Metal-on-metal (MoM) total hip arthroplasties (THAs) have been linked with increased incidence of pseudotumours and revision rate. magnetic resonance imaging (MRI) is useful in diagnosing adverse reaction to metal debris (ARMD) disease but it is not known if MRI findings correlate with cup position. From a cohort of 79 MoM THA, 34 MRI studies were available. MRI was classified according to Anderson classification. Mean follow-up was 7.1 years. Evaluation included cup position including margin of safety, measurement of metal ion levels and evaluation of function. 44% of patients had definite ARMD. We did not find any correlation between MRI stage and Co, Cr, margin of safety (MOS) or functional scores. However, patients with a margin of safety angle < 21° had more severe findings in MRI. Patients with MoM THA experience high degree of ARMD. In our study, the disease did not correlate with metal ion levels but correlated with cup position, evaluated with the MOS angle.

References

Jun 11, 2004·The Journal of Arthroplasty·Kenneth A Krackow
Feb 2, 2011·The Journal of Bone and Joint Surgery. British Volume·D J LangtonK A De Smet
Apr 12, 2011·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·M HerdmanX Badia
Jul 20, 2011·The Journal of Bone and Joint Surgery. British Volume·D J LangtonA V F Nargol
Oct 5, 2011·The Journal of Bone and Joint Surgery. British Volume·A J HartJ A Skinner
Dec 20, 2011·Clinical Orthopaedics and Related Research·Ashley K MatthiesAlister J Hart
May 2, 2012·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Vikki WyldeAshley W Blom
Dec 13, 2012·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Walter van der WeegenJob L C van Susante
Nov 21, 2013·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Mehmet AydoganGursel Saka
Dec 3, 2013·The Bone & Joint Journal·W van der WeegenR G H H Nelissen
Jun 22, 2014·The Journal of Bone and Joint Surgery. American Volume·Vaibhav KanawadeZhinian Wan
Aug 22, 2014·Clinical Orthopaedics and Related Research·Thomas K FehringSusan M Odum
Oct 3, 2014·The Bone & Joint Journal·J DanielD J W McMinn
Feb 24, 2016·The Journal of Arthroplasty·Jeffrey M GoldsteinKeith A Fehring
Dec 3, 2016·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Antonios A KoutalosEvert J Smith
Feb 2, 2017·The Journal of Bone and Joint Surgery. American Volume·Gulraj S MatharuHemant G Pandit
Mar 2, 2017·Bone & Joint Research·S C ScholesT J Joyce
Mar 28, 2017·Journal of Magnetic Resonance Imaging : JMRI·Pia M JungmannReto Sutter

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Citations

Feb 2, 2021·Arthroplasty Today·Laurent MustakiStéphane Cherix

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Methods Mentioned

BETA
total hip arthroplasty

Software Mentioned

MARS
SPSS

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