Range of normal and abnormal subacromial/subdeltoid bursa fluid

Journal of Computer Assisted Tomography
Eric A WhiteAndrew H Haims

Abstract

To determine the range of normal and abnormal subacromial/subdeltoid (SA/SD) bursa fluid. Using a 1.5-T magnetic resonance (MR) imaging scanner, 2 observers evaluated coronal oblique T2-weighted, fast spin echo, fat-suppressed images of 71 persons (36 asymptomatic volunteers and 35 patients with full-thickness rotator cuff tears [RCTs]) for the 1) widest thickness of the SA/SD bursa; 2) medial extent of bursa from the acromioclavicular joint (ACJ); and 3) because patients were supine, whether fluid was in the posterior quarter, middle quarter, anterior quarter, or anterior-most quarter of the bursa. The range of bursa thickness was 0 to 7 mm (mean = 1.3 mm, median = 2 mm) in normal bursas and 0 to 8 mm (mean = 3.3 mm, median = 3 mm; P < 0.05, t test) in RCTs. Only 2 volunteers exceeded 3 mm in bursa thickness. In volunteers, 36% had no fluid present, 61% had a small amount of fluid lateral to the ACJ, and 1 had fluid directly beneath the ACJ (P < 0.05). In RCT patients, 37% had fluid directly under the ACJ or medial to the ACJ. Only 1 patient with an RCT had no bursal fluid. In volunteers, most fluid was in the posterior quarter (53%) or middle quarter (22%) of the bursa, whereas in RCT patients, most fluid was located in the a...Continue Reading

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Citations

Apr 4, 2012·Magnetic Resonance Imaging Clinics of North America·Michael J Tuite
Feb 3, 2009·Clinical Radiology·E MulyadiR Rebello
Feb 28, 2009·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Michael J DeFranco, Brian J Cole
Aug 11, 2015·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Pieter Bas de WitteRob G H H Nelissen
Dec 30, 2016·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Marion S KennedyStephanie J Woodley
Feb 16, 2018·Skeletal Radiology·Lionel PesquerPierre Abadie
Jul 1, 2014·World Journal of Radiology·Ahmed M TawfikMohamed Aboelnour Badran
Nov 17, 2019·International Journal of Molecular Sciences·Jih-Yang KoFeng-Sheng Wang
Nov 5, 2011·The Journal of the American Academy of Orthopaedic Surgeons·Alicia K Harrison, Evan L Flatow

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