Pre-op fat fractions in rotator cuff muscles ID post-op retear

Pre-op fat fractions in rotator cuff muscles ID post-op retear

(HealthDay)—Magnetic resonance (MR) imaging of preoperative fat fractions within the rotator cuff muscles may be able to help predict postoperative retear, according to a study published in the August issue of Radiology.

Taiki Nozaki, M.D., Ph.D., from St. Luke's International Hospital in Tokyo, and colleagues conducted a prospective study to determine the degree of fatty degeneration within muscles. They recruited 50 patients with full-thickness supraspinatus tears. Using a two-point Dixon MR imaging sequence they quantified the degrees of preoperative and postoperative fatty degeneration; the mean signal intensity on in-phase and fat was measured by two radiologists. At baseline preoperative and at postoperative one-year follow-up, MR imaging estimates of fatty degeneration were calculated. Preoperative fat fractions were compared for the failed-repair and intact-repair groups.

The researchers found that the failed-repair group had significantly higher preoperative fat fractions in the supraspinatus than the intact-repair group (37.0 versus 19.5 percent; P < 0.001). In the failed-repair group only, fatty degeneration of the supraspinatus muscle tended to progress at one year postoperatively.

"MR imaging quantification of preoperative fat fractions by using a two-point Dixon sequence within the rotator cuff muscles may be a viable method for predicting postoperative retear," the authors write.

One author disclosed financial ties to Nihon Medi-Physics.

Explore further

Pre-op patterns can predict post-cardiac surgery constipation

More information: Full Text (subscription or payment may be required)
Journal information: Radiology

Copyright © 2016 HealthDay. All rights reserved.

Citation: Pre-op fat fractions in rotator cuff muscles ID post-op retear (2016, July 28) retrieved 24 July 2021 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Feedback to editors

User comments