Document Detail

In-vivo three-dimensional carpal bone kinematics during flexion-extension and radio-ulnar deviation of the wrist: Dynamic motion versus step-wise static wrist positions.
MedLine Citation:
PMID:  19748626     Owner:  NLM     Status:  MEDLINE    
An in-vivo approach to the measurement of three-dimensional motion patterns of carpal bones in the wrist may have future diagnostic applications, particularly for ligament injuries of the wrist. Static methods to measure carpal kinematics in-vivo only provide an approximation of the true kinematics of the carpal bones. This study is aimed at finding the difference between dynamically and statically acquired carpal kinematics. For eight healthy subjects, static and a dynamic measurements of the carpal kinematics were performed for a flexion-extension and a radio-ulnar deviation movement. Dynamic scans were acquired by using a four-dimensional X-ray imaging system during an imposed cyclic motion. To assess static kinematics of the wrists, three-dimensional rotational X-ray scans were acquired during step-wise flexion-extension and radio-ulnar deviation. The helical axis rotations and the rotation components. i.e. flexion-extension, radio-ulnar deviation and pro-supination were the primary parameters. Linear mixed model statistical analysis was used to determine the significance of the difference between the dynamically and statically acquired rotations of the carpal bones. Small and in most cases negligible differences were observed between the dynamic motion and the step-wise static motion of the carpal bones. The conclusion is that in the case of individuals without any pathology of the wrist, carpal kinematics can be studied either dynamically or statically. Further research is required to investigate the dynamic in-vivo carpal kinematics in patients with dynamic wrist problems.
M Foumani; S D Strackee; R Jonges; L Blankevoort; A H Zwinderman; B Carelsen; G J Streekstra
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2009-09-12
Journal Detail:
Title:  Journal of biomechanics     Volume:  42     ISSN:  1873-2380     ISO Abbreviation:  J Biomech     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2010-01-28     Completed Date:  2010-04-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0157375     Medline TA:  J Biomech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2664-71     Citation Subset:  IM    
Department of Plastic, Reconstructive, and Hand Surgery, Academic Medical Center, Meibergdreef 9, Suite G4-226, PO Box 22660, 1100 DD Amsterdam, the Netherlands.
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MeSH Terms
Carpal Bones / anatomy & histology,  physiology*
Carpal Joints / anatomy & histology,  physiology*
Imaging, Three-Dimensional / methods
Models, Anatomic
Models, Biological*
Radius / anatomy & histology,  physiology*
Range of Motion, Articular / physiology*
Reproducibility of Results
Sensitivity and Specificity
Ulna / anatomy & histology,  physiology*
Wrist Joint / anatomy & histology,  physiology*
Young Adult

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