A functional axis based upper extremity model and associated calibration procedures

Gait & Posture
Bruce A MacWilliamsR Z Tashjian

Abstract

An upper extremity model focusing on an accurate and complete description of elbow motion is introduced. Both glenohumeral center of rotation and functional elbow axes are computed and used for anatomical coordinate descriptions. Model results match goniometric measures of the flexed elbow and test-retest analyses of six subjects were repeatable within 5 degrees for most measures. The elbow axis from 25 individuals was located about 12 mm distal and anterior to the midpoint of the transepicondylar axis, placing it aligned with the center of the trochlea. Carrying angle of the elbow was determined to be 11 degrees of abduction (valgus) with the arm extended.

References

Jul 21, 1999·Journal of Biomechanical Engineering·T P AndriacchiJ Sum
Mar 1, 2002·Gait & Posture·George RabAnita Bagley
Feb 6, 2004·Journal of Biomechanics·Andrea CereattiAurelio Cappozzo
Apr 27, 2007·Gait & Posture·Carolien J van AndelJaap Harlaar

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Citations

Sep 5, 2015·Computers in Biology and Medicine·Alberto OlivaresG Olivares
Mar 4, 2011·The Journal of Bone and Joint Surgery. American Volume·Matthew SardelliBruce A MacWilliams
May 26, 2018·Shoulder & Elbow·Emily A WestLouis M Ferreira

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