Document Detail

CT, MRI and video based analysis of knee kinematics--a basis for CT based simulation.
MedLine Citation:
PMID:  15458104     Owner:  NLM     Status:  MEDLINE    
With the new computer aided surgery techniques a surgery can be split in two phases, which are pre-operative planning and intervention. The planning is frequently based on three dimensional image data and takes place in the office of the surgeon. Using this approach the surgical feeling, the physical feedback of the patient, is not available during the planning phase. However, this feedback yields information, which is helpful or necessary for the planning. This lack of information can be compensated by a simulation module, which simulates kinematic data from image volume data. To develop such a module first both image volume data and kinematic data have to be captured from a wide range of patients. In this work a new approach for kinematic analysis of the knee is presented which yields an accuracy which is necessary for such simulation. Because the analysis has to be done for many patients the degree of invasiveness is emphasized. This contactless and non invasive approach is based on external fixations, anatomical skin markers, video sequences and computer tomograms. Position tracking of femur and tibia for any motion pattern is possible. Because the individual anatomic structures extracted from the tomogram are tracked, an analysis of any point or coordinate system can be done later using the originally captured data. This gives a new degree of freedom for analysis.
Dietmar Meister; Peter Heinze; Martin Gonser; Rudolf Kober; Heinz Wörn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Studies in health technology and informatics     Volume:  85     ISSN:  0926-9630     ISO Abbreviation:  Stud Health Technol Inform     Publication Date:  2002  
Date Detail:
Created Date:  2004-10-01     Completed Date:  2004-11-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9214582     Medline TA:  Stud Health Technol Inform     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  290-5     Citation Subset:  T    
URS Ortho GmbH & Co KG, Kehler Str 31, D-76437 Rastatt, Germany.
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MeSH Terms
Gait / physiology
Image Processing, Computer-Assisted
Imaging, Three-Dimensional
Knee Joint / physiopathology*
Magnetic Resonance Imaging*
Range of Motion, Articular / physiology*
Tomography, X-Ray Computed*
User-Computer Interface*
Video Recording*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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