Comparison of Dynamic Sonography to Stress Radiography for Assessing Glenohumeral Laxity in Asymptomatic Shoulders
- 1 May 2005
- journal article
- clinical trial
- Published by SAGE Publications in The American Journal of Sports Medicine
- Vol. 33 (5), 734-741
- https://doi.org/10.1177/0363546504269940
Abstract
Background Stress radiography has been the established imaging method for quantifying glenohumeral joint laxity. Dynamic ultrasound is an alternative imaging method that may be used to measure glenohumeral laxity; however, validity and repeatability have not been examined. Objective To determine criterion-related validity and repeatability of a sonographic imaging method for measuring glenohumeral laxity in asymptomatic shoulders. Study Design Controlled laboratory study. Methods In experiment 1, 20 subjects were assessed for glenohumeral laxity using stress radiography and dynamic ultrasound. In the second experiment, 13 subjects were assessed for laxity in 2 separate test sessions using the dynamic ultrasound technique. Results Correlational analysis between the sonographic and radiographic measures revealed an r = 0.79 (r2 = 0.62), indicating excellent criterion-related validity for the sonographic imaging method. Test-retest repeatability was 0.72 and 0.85 for anterior and posterior translation, respectively, and interrater repeatability was 0.96 and 0.99 for anterior and posterior translation, respectively. Conclusions Dynamic ultrasound appears to be a valid and repeatable method for assessing glenohumeral laxity in a clinical setting. Clinical Relevance Based on the results of this study, dynamic ultrasound is a repeatable and valid method for measuring glenohumeral laxity and therefore may be used as a viable replacement for stress radiography during assessments of glenohumeral laxity.Keywords
This publication has 15 references indexed in Scilit:
- Dynamic US of the Anterior Band of the Ulnar Collateral Ligament of the Elbow in Asymptomatic Major League Baseball PitchersRadiology, 2003
- Instrumented measurement of glenohumeral joint laxity: reliability and normative dataKnee Surgery, Sports Traumatology, Arthroscopy, 2001
- Ultrasonic measurement of the anterior translation in the shoulder jointJournal of Shoulder and Elbow Surgery, 1999
- Radiographic evaluation of glenohumeral kinematics: A muscle fatigue modelJournal of Shoulder and Elbow Surgery, 1999
- Evaluation of Shoulder LaxitySports Medicine, 1996
- Radiologic measurement of superior displacement of the humeral head in the impingement syndromeJournal of Shoulder and Elbow Surgery, 1996
- In vivo quantification of the laxity of normal and unstable glenohumeral jointsJournal of Shoulder and Elbow Surgery, 1994
- Fluoroscopic evaluation for subtle shoulder instabilityThe American Journal of Sports Medicine, 1992
- Sonographische Dokumentation der Translationsbeweglichkeit des SchultergelenkesUltraschall in der Medizin - European Journal of Ultrasound, 1991
- STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENTThe Lancet, 1986