Test-Retest Reliability of 3D Ultrasound Measurements of the Thoracic Spine

被引:19
作者
Foelsch, Christian [2 ]
Schloegel, Stefanie [2 ]
Lakemeier, Stefan [1 ,2 ]
Wolf, Udo [1 ]
Timmesfeld, Nina [3 ]
Skwara, Adrian [2 ,4 ]
机构
[1] Univ Hosp Gottingen, Dept Orthoped, D-37075 Gottingen, Germany
[2] Univ Hosp Marburg, Dept Orthoped & Rheumatol, Marburg, Germany
[3] Hsch Gesundheit Bochum, Bochum, Germany
[4] Univ Munster, Dept Trauma Hand & Reconstruct Surg, Munster, Germany
关键词
CERVICAL-SPINE; CLINICAL MEASUREMENT; MOVEMENT ANALYSIS; MOTION ANALYSIS; GLOBAL MOTION; LUMBAR SPINE; VALIDITY; RANGE; PALPATION; SCOLIOSIS;
D O I
10.1016/j.pmrj.2012.01.009
中图分类号
R49 [康复医学];
学科分类号
100232 [康复医学];
摘要
Objective: To explore the reliability of the Zebris CMS 20 ultrasound analysis system with pointer application for measuring end-range flexion, end-range extension, and neutral kyphosis angle of the thoracic spine. Setting: The study was performed within the School of Physiotherapy in cooperation with the Orthopedic Department at a University Hospital. Participants: The thoracic spines of 28 healthy subjects were measured. Methods: Measurements for neutral kyphosis angle, end-range flexion, and end-range extension were taken once at each time point. The bone landmarks were palpated by one examiner and marked with a pointer containing 2 transmitters using a frequency of 40 kHz. A third transmitter was fixed to the pelvis, and 3 microphones were used as receiver. The real angle was calculated by the software. Bland-Altman plots with 95% limits of agreement, intraclass correlations (ICC), standard deviations of mean measurements, and standard error of measurements were used for statistical analyses. The test-retest reliability in this study was measured within a 24-hour interval. Main Outcome Measurements: Statistical parameters were used to judge reliability. Results: The mean kyphosis angle was 44.8 degrees with a standard deviation of 17.3 degrees at the first measurement and a mean of 45.8 degrees with a standard deviation of 16.2 degrees the following day. The ICC was high at 0.95 for the neutral kyphosis angle, and the Bland-Altman 95% limits of agreement were within clinical acceptable margins. The ICC was 0.71 for end-range flexion and 0.34 for end-range extension, whereas the Bland-Altman 95% limits of agreement were wider than with the static measurement of kyphosis. Compared with static measurements, the analysis of motion with 3-dimensional ultrasound showed an increased standard deviation for test-retest measurements. Conclusions: The test-retest reliability of ultrasound measuring of the neutral kyphosis angle of the thoracic spine was demonstrated within 24 hours. Bland-Altman 95% limits of agreement and the standard deviation of differences did not appear to be clinically acceptable for measuring flexion and extension. PM R 2012;4:335-341
引用
收藏
页码:335 / 341
页数:7
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