Artikel
Sagittal balance of 100 patients with a lumbar degenerative disease: a comparative study
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Autoren
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C. Barrey
- Service de Neurochirurgie du Pr Perrin, Hôpital P. Wertheimer, Lyon
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J. Jund
- Département d'analyses statistiques, Centre Hospitalier de la Région Annecienne
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O. Noseda
- Service de Chirurgie Orthopédique, Clinique médico-chirurgicale des Massues, Lyon
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P. Roussouly
- Service de Chirurgie Orthopédique, Clinique médico-chirurgicale des Massues, Lyon
| Veröffentlicht: | 4. Mai 2005 |
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Gliederung
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Objective
The main objective of this study was to analyse spino-pelvic parameters in a population of 100 patients with a lumbar degenerative disease. We have also determinated the influence of the lumbar lordosis morphology on the type of lumbar degenerative pathology occured.
Methods
Four pathologies were considered : disc herniation, discopathy, lumbar stenosis and degenerative spondylolisthesis.
Spino-pelvic parameters were analysed on full spine radiographs. Pelvic parameters measured were: pelvic incidence, sacral slope and pelvic tilt. Spinal parameters measured were: lumbar lordosis, thoracic kyphosis, spino-sacral angle and the C7/SFD ratio. The type of lordosis according Massues classification was also determinated.
The population of 100 patients as each group of degenerative disease were compared with a control population of 160 asymptomatic adults that was the subject of a previous study.
Results
Each pathology was characterised by an antepulsed sagittal C7 plumb line, a loss of lordosis and a increase of the pelvic tilt.
No significant difference was found between the group of disc herniation and the group of discopathy concerning all spino-pelvic parameters. The two groups of patients demonstrated a pelvic incidence slightly decreased with a low sacral slope and flat spine curves, p<0.05.
On the opposite patients with degenerative spondylolisthesis demonstrated a great pelvic incidence (mean : 60°) and the tendency to have a sacrum more vertical with less sacral slope, p<0.05.
We could not conclude concerning the stenosis group regarding to the size of the sample.
Conclusions
The type of lumbar degenerative disease appeared to be well influenced by the spino-pelvic alignment of the patient.
