Kinematics Study of Glenohumeral Joint at Different Arm Elevation Planes in Normal Chinese
10.16156/j.1004-7220.2022.02.20
- VernacularTitle:正常国人盂肱关节在不同手臂抬高平面的运动学研究
- Author:
Shiting YUAN
1
;
Siyuan ZHU
2
;
Xuelian GU
1
;
Shaobai WANG
3
;
Jianhua WANG
2
Author Information
1. School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology
2. Department of Orthopaedics, Xinhua Hospital
3. Department of Sports Science, Shanghai University of Sport
- Publication Type:Journal Article
- Keywords:
glenohumeral joint;
biplanar fluoroscopy;
in vivo detection;
kinematics
- From:
Journal of Medical Biomechanics
2022;37(2):E317-E322
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate relative translations of the glenohumeral joint during abduction, scaption and forward flexion in normal Chinese, so as to provide references for diagnosis, treatment and follow-up of glenohumeral joint instability and subacromial impingement syndrome.Methods The biplanar fluoroscopy system combined with model-image registration technique were used to measure the humeral translation relative to the scapular in 13 healthy volunteers during abduction, scaption and forward flexion.Results The anterior-inferior glenohumeral translation during abduction, scaption and forward flexion was (4.0±1.3), (4.1±1.5),(4.8±1.9) mm, respectively. The superior-inferior glenohumeral translation was (3.0±1.0), (3.1±1.1), (3.3±1.5) mm, respectively. During the whole motion, there was a significant difference in superior-inferior translation at different arm elevation angles, while other significant differences were not found.Conclusions For normal Chinese, the humeral head was positioned posteriorly and superiorly on the glenoid. During forward flexion, the anterior-inferior and superior-inferior glenohumeral translation was the maxium. Therefore, in the process of clinical diagnosis, treatment and follow-up, patients performing the forward flexion may obtain a better evaluation effect.
