Eric Berthonnaud

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OBJECTIVE The purpose of this study is to introduce a method to analyze and characterize the global sagittal balance of the human trunk using indexes derived from the shape and orientation of the pelvis and cervical, thoracic, and lumbar spine. METHODS Standing lateral x-rays of a cohort of 160 asymptomatic young adult volunteers were obtained. On each(More)
A prospective analysis of the sagittal profile of 100 healthy young adult volunteers was carried out in order to evaluate the relationship between the shape of the pelvis and lumbar lordosis and to create a databank of the morphologic and positional parameters of the pelvis and spine in a normal healthy population. Inclusion criteria were as follows: no(More)
STUDY DESIGN Prospective study of normal sagittal global spinal balance in the Caucasian adult population. OBJECTIVE To document values for parameters of global spinal balance in 709 asymptomatic adults without spinal pathology. SUMMARY OF BACKGROUND DATA Previous studies have investigated sagittal spinal balance in the normal population, but there is(More)
The sagittal spinopelvic balance is poorly documented in normal pediatric subjects. The purpose of this study is to characterize the sagittal spinopelvic balance in the pediatric population and to evaluate the correlations between spinopelvic parameters. Seven parameters were evaluated from the lateral standing radiographs of 341 normal subjects aged 3-18(More)
PURPOSE OF THE STUDY The main objective of this study was to describe the morphology and the mechanism underlying the organization of lumbar lordosis in terms of position and shape of the pelvis. A classification of lumbar lordosis was proposed based on the orientation of the sacral plane. MATERIAL AND METHODS One hundred sixty asymptomatic young adult(More)
Dynamometric studies of grip strength are widely used in clinics. We present a clinic dynamometer that can be used to measure pronation and supination moments while the subject being tested is holding a cylindrical handle in neutral pronosupination. One hundred volunteers without any previous history of upper extremity injury were tested in pronation and(More)
OBJECTIVE The tangent circles technique has been proposed as an alternative to the Cobb angle technique to assess sagittal curves of the spine. However, it has never been compared directly to the Cobb technique. This study compares the reproducibility and clinical relevance of the maximum Cobb angle and tangent circles techniques. METHOD Standing sagittal(More)
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