Usefulness of Ultrasonography for Detection of Pseudotumors After Metal-On-Metal Total Hip Arthroplasty

Abstract We retrospectively analyzed 83 metal-on-metal total hip arthroplasties in 74 patients. Ultrasonography and magnetic resonance imaging (MRI) of each hip were performed to detect abnormal patterns and pseudotumors. We examined the reliability of ultrasonography for detecting pseudotumors in c...

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Bibliographic Details
Published in:The Journal of arthroplasty 2015-05, Vol.30 (5), p.879-884
Main Authors: Muraoka, Kunihide, MD, Naito, Masatoshi, MD, PhD, Nakamura, Yoshinari, MD, PhD, Hagio, Tomonobu, MD, Takano, Koichi, MD
Format: Article
Language:English
Subjects:
Adult
adverse local tissue reaction (ALTR)
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - adverse effects
Female
Granuloma, Plasma Cell - diagnosis
Granuloma, Plasma Cell - diagnostic imaging
Granuloma, Plasma Cell - etiology
Hip Prosthesis
Humans
Magnetic Resonance Imaging
Male
metal-on-metal bearings
Metal-on-Metal Joint Prostheses - adverse effects
Middle Aged
Orthopedics
pseudotumor
Reproducibility of Results
Retrospective Studies
total hip arthroplasty
Ultrasonography
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Summary:Abstract We retrospectively analyzed 83 metal-on-metal total hip arthroplasties in 74 patients. Ultrasonography and magnetic resonance imaging (MRI) of each hip were performed to detect abnormal patterns and pseudotumors. We examined the reliability of ultrasonography for detecting pseudotumors in comparison with MRI. We also compared the acetabular component inclination between patients with and without pseudotumors. The mean positive and negative predictive values for pseudotumor detection by ultrasonography were 65% and 91%, respectively. The mean positive and negative likelihood ratios were 5.78 and 0.32, respectively. There was no clear association between pseudotumor presence and acetabular component inclination. We concluded that ultrasonography is a suitable technique to screen for the presence of pseudotumors. We also need to distinguish between bearing-related and taper junction corrosion-related complications.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2014.12.005