| Home | E-Submission | Sitemap | Contact Us |  
top_img

A reliable measurement for the physiologic ankle syndesmosis widening using dynamic 3D ultrasonography: a preliminary study
Seung Woo Cha1 , Kee Jeong Bae2 , Jee Won Chai1 , Jina Park1 , Yoon-Hee Choi3 , Dong Hyun Kim1
1Department of Radiology, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
2Department of Orthopedic Surgery, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
3Department of Physical Medicine and Rehabilitation, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
Corresponding Author: Dong Hyun Kim ,Tel: 02-870-2549, Fax: 02-870-3539, Email: mi4ri4@gmail.com
Received: September 28, 2018;  Accepted: November 14, 2018.  Published online: November 14, 2018.
Share :  
ABSTRACT
Purpose:
To present techniques to measure the normal distal tibiofibular syndesmosis widening based on three-dimensional ultrasonography (3D-US) with reliability evaluation, and to find out if there was a difference in the measurements between different dynamic stress tests.
Methods:
We retrospectively evaluated 3D-US of 20 subjects with normal ankle syndesmosis. 3D-US was performed in neutral (N), dorsiflexion with external rotation (DFER), and weight-bearing standing (WB) positions at the anterior inferior tibiofibular ligament level in both ankles for comparison. Using 3D-US volume data, axial images were reconstructed at the level of the lateral prominent point of the anterior tibial tubercle for the constant measurement of tibiofibular clear space (TFCS) by two radiologists.
Results:
There was a wide range of TFCS values according to the subjects (N, 1.2 to 4.2 mm; DFER, 2.3 to 4.8 mm; WB, 1.7 to 4.6 mm). When both ankles of each subject were evaluated, side to side differences were less than 1 mm in all positions, with high ICC values between both ankles (ICC range, 0.85 to 0.93). All inter-rater agreements of TFCS measurements between two radiologists were excellent (ICC range, 0.81 to 0.96). In comparisons between the two dynamic stress tests, TFCS in DFER was significantly wider than that of WB (DFER vs. WB, 3.3 vs. 2.9 mm, p < 0.001).
Conclusion:
Using 3D-US, we were able to consistently evaluate the TFCS with a good reliability. In comparison of the two dynamic tests, there was a more significant widening of TFCS in DFER than in WB.
Keywords: Ankle joint; Ultrasonography; Movement; Diagnosis
Editorial Office
A-304 Mapo Trapalace, 53 Mapo-daero, Mapo-gu, Seoul 04158, Korea
TEL : +82-2-763-5627   FAX : +82-2-763-6909   E-mail : office@ultrasound.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © Korean Society of Ultrasound in Medicine. All rights reserved.                 powerd by m2community