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Int J Comput Assist Radiol Surg.: An integrated platform for hip joint osteoarthritis analysis: design, implementation and results.

The authors present a software designed to improve hip joint osteoarthritis (OA) understanding using 3D anatomical models, magnetic resonance imaging (MRI), and motion capture. In addition to a standard static clinical evaluation (anamnesis, medical images examination), the software provides a dynamic assessment of the hip joint. The operator can compute automatically and in real-time the hip joint kinematics from optical motion capture data. From the estimated motion, the software allows for the calculation of the active range of motion, the congruency and the center of rotation of the hip joint, and the detection and localization of the femoroacetabular impingement region. None of these measurements can be performed clinically. Moreover, to improve the subjective reading of medical images, the software provides a set of 3D measurement tools based on MRI and 3D anatomical models to assist and improve the analysis of hip morphological abnormalities. Finally, the software is driven by a medical oncology to support data storage, processing, and analysis. The authors performed an in vivo assessment of the software in a clinical study conducted with 30 professional ballet dancers, a population at high risk of developing OA. They studied the causes of OA in this selected population. Their results showed that extreme motion exposes the morphologically "normal" dancer's hip to recurrent superior or posterosuperior femoral acetabular impingement and to joint subluxation.

2010 Jul; 5(4):351-8.

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Author:Charbonnier, C.; Magnenat-Thalman, N.; Becker. C.D.; Hoffmeyer, P.; Menetrey, J.
Publication:Journal of Dance Medicine & Science
Article Type:Reprint
Date:Oct 1, 2011
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