Sonography of the coracohumeral interval: a potential technique for diagnosing coracoid impingement.
Publication/Presentation Date
3-1-2010
Abstract
OBJECTIVE: Coracoid impingement has been recognized as an etiology for anterior shoulder pain; however, no imaging reference standard exists. We used sonography to compare the coracohumeral interval (CHI) in asymptomatic volunteers with the CHI in patients with coracoid impingement.
METHODS: Bilateral shoulder sonography was performed in 19 asymptomatic volunteers (10 men and 9 women) and in 8 shoulders in 7 patients (6 men and 1 woman) with a clinical diagnosis of coracoid impingement. With the arm adducted across the chest, the interval between the coracoid process and the lesser tuberosity of the humerus was measured using a linear array ultrasound transducer with a peak frequency of 13 MHz.
RESULTS: In the asymptomatic volunteers, the mean +/- SD for the CHI was 12.2 +/- 2.5 mm (range, 7.8-17.5 mm). In the symptomatic shoulders, the mean +/- SD for the CHI was 7.9 +/- 1.4 mm (range, 5.9-9.6 mm). Repeated measures analysis of variance revealed the CHI to be significantly narrower in symptomatic shoulders than in asymptomatic volunteers (P < .0001).
CONCLUSIONS: These data suggest a role for sonography in diagnosing coracoid impingement.
Volume
29
Issue
3
First Page
337
Last Page
341
ISSN
1550-9613
Published In/Presented At
Tracy, M. R., Trella, T. A., Nazarian, L. N., Tuohy, C. J., & Williams, G. R. (2010). Sonography of the coracohumeral interval: a potential technique for diagnosing coracoid impingement. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 29(3), 337–341. https://doi.org/10.7863/jum.2010.29.3.337
Disciplines
Diagnosis | Medicine and Health Sciences | Other Analytical, Diagnostic and Therapeutic Techniques and Equipment | Radiology
PubMedID
20194930
Department(s)
Department of Radiology and Diagnostic Medical Imaging
Document Type
Article