Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Mathematical modeling of the socalled Allis test: a field study in orthopedic confusion. | BioMed Central Chiropractic Osteopathy Research Open Access Mathematical modeling of the socalled Allis test a field study in orthopedic confusion Robert Cooperstein 1 2 Michael Hanelinet2 and Morgan Youngt3 Address 1Director of Technique and Research Palmer West College of Chiropractic 90 East Tasman Drive San Jose CA 95134 USA 2Palmer Center for Chiropractic Research Palmer West College of Chiropractic 90 East Tasman Drive San Jose CA 95134 USA and 3Research Assistant Palmer West College of Chiropractic 90 East Tasman Drive San Jose CA 95134 USA Email Robert Cooperstein - cooperstein_r@ Michael Haneline - Morgan Young - Corresponding author fEqual contributors Published 22 January 2007 Received 27 July 2006 . I- J . IA . I nz .1Accepted 22 January 2007 Chiropractic Osteopathy 2007 15 3 doi 1746-1340-15-3 This article is available from http content 15 1 3 2007 Cooperstein et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Chiropractors use a variety of supine and prone leg checking procedures. Some including the Allis test purport to distinguish anatomic from functional leg length inequality. Although the reliability and to a lesser extent the validity of some leg checking procedures has been assessed little is known on the Allis test. The present study mathematically models the test under a variety of hypothetical clinical conditions. In our search for historical and clinical information on the Allis test nomenclatural and procedural issues became apparent. Methods The test is performed with the subject carefully positioned in the supine position with the head pelvis and feet centered on the table. After an
