Báo cáo hóa học: " Research Article In Vivo Measurement of Glenohumeral Joint Contact Patterns"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article In Vivo Measurement of Glenohumeral Joint Contact Patterns | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2010 Article ID 162136 6 pages doi 2010 162136 Research Article In Vivo Measurement of Glenohumeral Joint Contact Patterns Michael J. Bey Stephanie K. Kline Roger Zauel Patricia A. Kolowich and Terrence R. Lock Department of Orthopaedic Surgery Bone and Joint Center Henry Ford Hospital 2799 w Grand Blvd. E R 2015 Detroit Mi 48202 UsA Correspondence should be addressed to Michael J. Bey bey@ Received 15 April 2009 Accepted 27 June 2009 Academic Editor Joao Manuel R. S. Tavares Copyright 2010 Michael J. Bey et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. The objectives of this study were to describe a technique for measuring in-vivo glenohumeral joint contact patterns during dynamic activities and to demonstrate application of this technique. The experimental technique calculated joint contact patterns by combining CT-based 3D bone models with joint motion data that were accurately measured from biplane x-ray images. Joint contact patterns were calculated for the repaired and contralateral shoulders of 20 patients who had undergone rotator cuff repair. Significant differences in joint contact patterns were detected due to abduction angle and shoulder condition . repaired versus contralateral . Abduction angle had a significant effect on the superior inferior contact center position with the average joint contact center of the repaired shoulder higher on the glenoid than the contralateral shoulder. This technique provides clinically relevant information by calculating in-vivo joint contact patterns during dynamic conditions and overcomes many limitations associated with conventional techniques for quantifying joint mechanics. 1. Introduction The treatment of many pathologic shoulder .

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