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2014 ; 10
(3
): 213-24
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Magnetic resonance imaging of shoulder arthroplasty: review article
#MMPMID25264437
Nwawka OK
; Konin GP
; Sneag DB
; Gulotta LV
; Potter HG
HSS J
2014[Oct]; 10
(3
): 213-24
PMID25264437
show ga
BACKGROUND: Magnetic resonance (MR) imaging evaluation of the painful failed
shoulder arthroplasty is a useful imaging modality due to advancements in metal
artifact reduction techniques, which allow assessment of the integrity of the
supporting soft-tissue envelope and the implant. QUESTIONS/PURPOSES: The focus of
this pictorial review is to illustrate the benefits of MR imaging, whether used
alone or as an adjunct to other imaging modalities, in aiding the clinician in
the complex decision making process. METHODS: A PubMed (MEDLINE) search focusing
on the complications and imaging assessment of shoulder arthroplasty was
performed. Articles were selected for review based on their pertinence to the
aforementioned topics. RESULTS: We discuss the ability of MR imaging to identify
why a patient's arthroplasty may have failed. Specific causes including component
loosening and implant failure, rotator cuff and deltoid integrity, infection,
subtle fractures, and nerve pathology are reviewed, with illustrative sample
images. CONCLUSION: MRI is a valuable tool in the assessment for pathology in the
shoulder following arthroplasty.