Dataset Information

Magnetic resonance imaging of shoulder arthroplasty: review article.

ABSTRACT:

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.

SUBMITTER: Nwawka OK

PROVIDER: S-EPMC4171449 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature

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Publications

Magnetic resonance imaging of shoulder arthroplasty: review article.

Nwawka O Kenechi OK Konin Gabrielle P GP Sneag Darryl B DB Gulotta Lawrence V LV Potter Hollis G HG

HSS journal : the musculoskeletal journal of Hospital for Special Surgery 20140719 3

<h4>Background</h4>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.<h4>Questions/purposes</h4>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 ...[more]

PMID: 25264437

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Project description:BackgroundShoulders of throwing and swimming athletes are highly stressed joints that often show structural abnormalities on magnetic resonance imaging (MRI). However, while water polo players exhibit a combination of throwing and swimming movements, a specific pattern of pathological findings has not been described.PurposeTo assess specific MRI abnormalities in shoulders of elite water polo players and to compare these findings with a healthy control group.Study designCross-sectional study; Level of evidence, 3.MethodsAfter performing a power analysis, volunteers were recruited for this study. Both shoulders of 28 semiprofessional water polo players and 15 healthy volunteers were assessed clinically (based on the Constant score) and had bilateral shoulder MRIs. The shoulders were clustered into 3 groups: 28 throwing and 28 nonthrowing shoulders of water polo athletes and 30 shoulders of healthy control subjects.ResultsTwenty-eight male water polo players with an average age of 24 years and 15 healthy subjects (30 shoulders) with an average age of 31 years were examined. Compared with controls, significantly more MRI abnormalities in the water polo players' throwing shoulders could be found in the subscapularis, infraspinatus, and posterior labrum (P = .001, P = .024, and P = .041, respectively). Other structures showed no statistical differences between the 3 groups, including the supraspinatus tendon, which had abnormalities in 36% of throwing versus 32% of nonthrowing shoulders and 33% of control shoulders. All throwing shoulders showed abnormal findings in the MRI, but only 8 (29%) were symptomatic.ConclusionThe shoulders of semiprofessional water polo players demonstrated abnormalities in subscapularis and infraspinatus tendons that were not typical abnormalities for swimmers or throwing athletes.Clinical relevanceThe throwing shoulders of water polo players have specific MRI changes. Clinical symptoms do not correlate with the MRI findings.

Dataset Information

Magnetic resonance imaging of shoulder arthroplasty: review article.

Background

Questions/purposes

Methods

Results

Conclusion

Publications

Magnetic resonance imaging of shoulder arthroplasty: review article.

Similar Datasets

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