TY - JOUR
T1 - Scapular and clavicular kinematics during humeral elevation
T2 - A study with cadavers
AU - Fung, Mansheung
AU - Kato, Sadafumi
AU - Barrance, Peter J.
AU - Elias, John J.
AU - McFarland, Edward G.
AU - Nobuhara, Katsuya
AU - Chao, Edmund Y.S.
N1 - Funding Information:
This work was partially supported by a gift from the Nobuhara Hospital and Institute of Biomechanics, Hyogo, Japan.
PY - 2001/5
Y1 - 2001/5
N2 - A combination of kinematic testing and graphic reconstruction of cadaveric shoulders was used to characterize shoulder kinematics during a simulated passive clinical range-of-motion examination. Cadaveric shoulders were elevated in the coronal, scapular, and sagittal planes while the scapula, clavicle, and humerus were kinematically tracked. Graphic models of each shoulder were created from computed tomography data. The models were animated to display the experimental motions. Shoulder kinematics varied between elevation planes. The scapular and clavicular rotations were relatively small until the humerus reached approximately 90° of elevation. Clavicular and scapular rotations that occurred at low humeral elevation angles for elevation in the coronal plane were significantly larger than for the other two planes. The glenohumeral to scapulothoracic ratio was approximately equal to 2 for the entire range of elevation for each elevation plane, but it was dramatically larger during early elevation than during late elevation.
AB - A combination of kinematic testing and graphic reconstruction of cadaveric shoulders was used to characterize shoulder kinematics during a simulated passive clinical range-of-motion examination. Cadaveric shoulders were elevated in the coronal, scapular, and sagittal planes while the scapula, clavicle, and humerus were kinematically tracked. Graphic models of each shoulder were created from computed tomography data. The models were animated to display the experimental motions. Shoulder kinematics varied between elevation planes. The scapular and clavicular rotations were relatively small until the humerus reached approximately 90° of elevation. Clavicular and scapular rotations that occurred at low humeral elevation angles for elevation in the coronal plane were significantly larger than for the other two planes. The glenohumeral to scapulothoracic ratio was approximately equal to 2 for the entire range of elevation for each elevation plane, but it was dramatically larger during early elevation than during late elevation.
UR - http://www.scopus.com/inward/record.url?scp=0035351019&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035351019&partnerID=8YFLogxK
U2 - 10.1067/mse.2001.114496
DO - 10.1067/mse.2001.114496
M3 - Article
C2 - 11408912
AN - SCOPUS:0035351019
SN - 1058-2746
VL - 10
SP - 278
EP - 285
JO - Journal of Shoulder and Elbow Surgery
JF - Journal of Shoulder and Elbow Surgery
IS - 3
ER -