Added Value of Ultrasound Shear Wave Elastography in Diagnosis of Frozen Shoulder.

Document Type : Original Article

Authors

1 Assistant Professor of Radio diagnosis, Faculty of Medicine, Zagazig University, Egypt

2 Professor of Radio diagnosis, Faculty of Medicine, Zagazig University, Egypt

3 Department of Radio diagnosis, Zagazig University, Zagazig city, Sharkia governorate, EGYPT

4 Lecturer of Radio diagnosis, Faculty of Medicine, Zagazig University, Egypt

Abstract

Background: Pain and a progressive lack of shoulder motion are the hallmarks of frozen shoulder (FS). FS usually goes through three phases: Stage I involves pain and limited motion, Stage II is marked by stiffness and Stage III during which symptoms gradually improve. We aimed to evaluate thickness and Share Wave Elastography (SWE) of the coracohumeral ligament (CHL), supraspinatus (SSp) and infraspinatus (ISp) tendons in affected and healthy side in different stages of frozen shoulder. Methods: This cross sectional study was carried out on 18 patients clinically identified with unilateral frozen shoulder and divided into three phases based on range of motion and visual analogue score (VAS). SWE and B-mode ultrasound (B-US) of the CHL, SSp and ISp tendons of the affected and healthy side were assessed and compared in different stages of FS. Results: The thickness and SWE of the CHL on the affected side were compared to those on the healthy side in stage I, there were no significant difference (P>0.05), but they were greater on the affected side in stages II and III (P =.001). The thickness and SWE of the SSp and ISp tendons on the affected side were compared to those on the healthy side in stage I frozen shoulder, there were significant difference (P>0.05) , but they were no significant difference between affected and healthy sides in stages II and III (P > 0.05). Conclusion: At different stages of frozen shoulder, the affected side's CHL, SSp and ISp tendons thickness and stiffness vary.

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