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Skeletal Radiol. 2013 May;42(5):675-80. doi: 10.1007/s00256-012-1523-1. Epub 2012 Sep 26.

Elbow MR imaging findings in patients with synovial fringe syndrome.

Author information

1
Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA.

Abstract

OBJECTIVE:

To describe imaging findings in patients with synovial fringe (SF) syndrome of the elbow and to compare with a control population.

MATERIALS AND METHODS:

Nine patients (5 men, 4 women) whose mean age was 35.7 years were diagnosed with SF syndrome and had undergone preoperative elbow MRI. The radiohumeral (RH) plica was assessed for thickness, cross-sectional area, coverage of one third or more of the radial head, blunting of the free edge, and T2 signal intensity abnormality. Other abnormalities of the RH joint were also assessed, including adjacent articular cartilage defects, subcortical bone marrow signal abnormality in the capitellum, and synovitis. Results were compared with 15 control patients who were asymptomatic laterally and posteriorly.

RESULTS:

Mean thickness and cross-sectional area of the RH plica were 1.8 mm and 19.4 mm(2) respectively in controls, compared with 2.5 mm and 21.9 mm(2) respectively in symptomatic patients. No statistically significant differences in the distribution of the mean thickness or cross-sectional area of the RH plica were found between the two groups. However, 67% of SF syndrome patients had a RH plica thickness greater than 2.6 mm compared with only 13% of controls (pā€‰=ā€‰0.021). Other abnormalities of the RH plica occurred more frequently in patients with SF syndrome compared with controls, but were not statistically significant.

CONCLUSION:

In patients presenting with posterolateral pain or mechanical symptoms in the elbow, RH plica thickness greater than 2.6 mm on elbow MRI examinations may help identify patients with SF syndrome.

PMID:
23011477
DOI:
10.1007/s00256-012-1523-1
[Indexed for MEDLINE]

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