Title :
A clinical system for the analysis of three-dimensional pediatric foot and ankle motion
Author :
Abu-Faraj, Ziad O. ; Sampath, Gautam ; Smith, Peter A. ; Harris, Gerald F.
Author_Institution :
Dept. of Biomed. Eng. & Orthopaedic Surg., Shriners Hosp. for Children, Chicago, IL, USA
fDate :
30 Oct-2 Nov 1997
Abstract :
A six-camera Vicon VX motion analysis system was utilized to track the three-dimensional motion of the pediatric foot and ankle. The system was used in conjunction with a biomechanical model to describe the multi-planar motion of the tibia, hindfoot and forefoot. Radiographic measurements were used to index the motion data with reference to bony landmarks. System characterization indicated an overall static resolution of 0.38 mm and a mean accuracy of 99.12%. Validation tests have confirmed system accuracy and reliability. The system measurements are considered suitable for further clinical testing. Kinematic data from a nonimpaired child are presented
Keywords :
CCD image sensors; biomedical measurement; gait analysis; image motion analysis; kinematics; medical image processing; orthopaedics; paediatrics; video signal processing; CCD cameras; active marker based system; biomechanical model; bony landmarks; clinical system; forefoot; hindfoot; multi-planar motion; pediatric foot and ankle; reliability; six-camera Vicon VX motion analysis system; stance phase of gait; static resolution; swing phase of gait; system accuracy; three-dimensional motion; tibia; Biomedical engineering; Biomedical measurements; Foot; Humans; Kinematics; Motion analysis; Orthopedic surgery; Radiography; System testing; Tracking;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.757087
