Untersuchungen zum Schwerpunktlot 15-25 Jahre nach Harrington-Distraktionsspondylodese bei Patienten mit idiopathischer Adoleszentenskoliose

There is a high variance in sagittal morphology and complaints between different subjects suffering from spinal disorders. Sagittal spinal alignment and clinical presentation are not closely related. Different parameters have been used to describe the pelvispinal morphology based on standing lateral radiographs. We conducted a study using radiography of the lumbar spine combined with force platform data to examine the correlation between pelvispinal parameters and the gravity line position. Fifty consecutive patients with a mean age of 55 years (18-84 years) were compared to normal controls. Among patients we found a statistically significant correlation between the following spinal parameters: lumbar lordosis and sacral slope (r=0.77; P<0.001), sacral slope and pelvic incidence (r=0.72; P<0.001) and pelvic tilt and overhang (r=−0.93; P<0.001). In patients and controls, the gravity line position was found to be located at 60 and 61%, respectively, of the foot length measured from the great toe, ranging from 53 to 69%, when corrected for the individual foot length. The results indicate that subjects with and without spinal disorders have their gravity line position localised within a very small range despite the high variability for lumbar lordosis and pelvic tilt.Résumé L'aspect sagittal de profil de sujets présentant des problèmes rachidiens est très fréquent. Différents paramètres ont été utilisés pour décrire la morphologie du canal rachidien, avec radiographie de profil debout. Nous avons pratiqué une étude utilisant la radiographie de la colonne lombaire sur plateforme de force pour déterminer la corrélation existante entre les paramètres du canal rachidien et le centre de gravité. Cinquante patients d'âge moyen 55 ans (de 18 à 84 ans) ont été comparés à un groupe de patients contrôle. Parmi ces patients, nous avons trouvé une différence significative concernant les paramètres suivants, lordose lombaire, pente sacrée (r=0.77; P<0.001) pour la pente sacrée l'incidence pelvienne est: r=0.72; P<0.001, pour la bascule du pelvis r=0.93; P<0.001. La position du centre de gravité dans les deux groupes de patients a été localisée à 60 et 61% respectivement de la longueur du pied mesuré à partir du gros orteil et à partir de 53 à 69% lorsqu'une correction de la longueur du pied a été effectuée. Ces résultats montrent que chez les sujets avec ou sans troubles spinaux, la position du centre de gravité varie peu en dépit de grosses variations de la lordose lombaire et de la bascule pelvienne.

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Adjustment of pelvispinal parameters preserves the constant gravity line position

Geiger

Müller

Niemeyer

et al. 2006

International Orthopaedics (SICOT)

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Does spinal fusion influence vestibular information in scoliosis patients? Unstable equilibrium analysis

Delpierre¹,

Vernet²,

Colin³

2020

Journal of Orthopaedics

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Does spinal fusion influence lateral oscillations in scoliosis patients? Unstable equilibrium analysis

Delpierre¹

2020

Journal of Orthopaedics

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Untersuchungen zum Schwerpunktlot 15-25 Jahre nach Harrington-Distraktionsspondylodese bei Patienten mit idiopathischer Adoleszentenskoliose

Cited by 4 publications

References 11 publications

Adjustment of pelvispinal parameters preserves the constant gravity line position

Adjustment of pelvispinal parameters preserves the constant gravity line position

Does spinal fusion influence vestibular information in scoliosis patients? Unstable equilibrium analysis

Does spinal fusion influence lateral oscillations in scoliosis patients? Unstable equilibrium analysis

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