Application of a Digital Head-Posture Measuring System in Children - 19/08/11
Inquiries to Dongsheng Yang, The Ocular Motor Neurophysiology Laboratory, The University of Pittsburgh Medical Center Eye Center, Department of Ophthalmology, Pediatric Ophthalmology, The Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center and University of Pittsburgh, Room 3649, One Children's Drive, 4401 Penn Avenue, Pittsburgh, PA 15201Résumé |
Purpose |
To report the repeatability of a digital head-posture measuring system when used to record anomalous head postures in children.
Design |
Prospective study and clinical laboratory investigation.
Methods |
Using a digital head-posture measuring system, we measured 36 different anomalous head postures in 27 children with infantile nystagmus syndrome. Repeatability values and 95% limits of repeatability of measurements were generated for anomalous head postures.
Results |
Among the 27 children, 3 had 2 head postures (right and left head turns) in 2 different directions; 6 had 2-dimensional head postures that were considered 2 different head postures; and 18 had a 1-dimensional head posture. There were 5 chin-up or chin-down postures, 23 head-turn postures, and 8 head-tilt postures in a total of 36 anomalous head postures. The repeatability value for all anomalous head postures was less than 10 degrees. Ninety-five percent limits of repeatability yielded ranges of less than 10 degrees for all anomalous head postures.
Conclusions |
The digital head-posture measuring system is a valid and reliable device for measuring 3-dimensional head postures in children with nystagmus.
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Vol 151 - N° 1
P. 66 - janvier 2011 Retour au numéro
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