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Automatic determination of an anatomical coordinate system for a three-dimensional model of the human patella

Rainbow, Michael J ; Miranda, Daniel L ; Cheung, Roy T.H ; Schwartz, Joel B ; Crisco, Joseph J ; Davis, Irene S ; Fleming, Braden C

Journal of Biomechanics, 09 August 2013, Vol.46(12), pp.2093-2096 [Peer Reviewed Journal]

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  • Title:
    Automatic determination of an anatomical coordinate system for a three-dimensional model of the human patella
  • Author/Creator: Rainbow, Michael J ; Miranda, Daniel L ; Cheung, Roy T.H ; Schwartz, Joel B ; Crisco, Joseph J ; Davis, Irene S ; Fleming, Braden C
  • Language: English
  • Subjects: Patella ; Anatomical Coordinate System ; Computed Tomography ; In Vivo ; Patellofemoral ; Medicine ; Engineering ; Anatomy & Physiology
  • Is Part Of: Journal of Biomechanics, 09 August 2013, Vol.46(12), pp.2093-2096
  • Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jbiomech.2013.05.024 Byline: Michael J. Rainbow, Daniel L. Miranda, Roy T.H. Cheung, Joel B. Schwartz, Joseph J. Crisco, Irene S. Davis, Braden C. Fleming Abstract: Measuring the in vivo 3-D kinematics of the patella requires a repeatable anatomical coordinate system (ACS). The purpose of this study was to develop an algorithm to determine an ACS using the patella's unique morphology. An ACS was automatically constructed that aligned the proximal/distal (PD) axis with the posterior vertical ridge. Inter-subject ACS repeatability was determined by registering all patellae and their associated ACSs to a reference patella. The mean angle between the reference patella ACS and each subject's axes was less than 2.5[degrees] and the 95% CI was 1.0[degrees]-4.0[degrees]. Here, we presented an anatomical coordinate system that is independent of the observer's subjective judgement or orientation of the knee within the scanner. Author Affiliation: (a) Spaulding National Running Center, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Cambridge, MA, USA (b) Wyss Institute for Biologically Inspired Engineering, Harvard Medical School, Boston, MA, USA (c) Department of Orthopaedics, The Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, USA Article History: Accepted 29 May 2013
  • Identifier: ISSN: 0021-9290 ; E-ISSN: 1873-2380 ; DOI: 10.1016/j.jbiomech.2013.05.024