Résumé
L'effet de l'instrumentation de Cotrel-Dubousset (CDI) sur les déformations tridimensionnelles du rachis, a été étudié chez 24 patients consécutifs, à l'aide de radiographies de face et de profil et de scannographies pré- et postopératoires. Le délai moyen de la surveillance postopératoire a été de 3,2 ans avec des extrêmes allant de 2,0 à 5,3 ans. Lors des contrôles postopératoires successifs, la valeur moyenne de l'angle de Cobb a présenté une diminution de 73% et la translation de la vertèbre apicale une diminution significative de 33%. Les courbures sagittales ont également été améliorées avec une accentuation de la cyphose thoracique de 46% de T5 à T12 (6,9°) et une augmentation de la lordose lombaire de 28% (10,3°) de L1 à L5. Le diamètre sagittal s'est significativement corrigé de 5 mm par rapport à sa valeur préopératoire. Bien que la rotation vertébrale et la taille de la gibbosité aient été corrigées à la suite de l'opération, cela a été suivi d'une perte significative de la correction et à terme, la rotation vertébrale et la gibbosité ne se sont pas révélées significativement améliorées par l'opération. Cette étude montre que l'action du matériel CD sur la rotation vertébrale et la gibbosité se détériore dans le temps, alors que la correction des déformations rachidiennes dans les plans sagittal et frontal est permanente.
Summary
The effect of Cotrel-Dubousset instrumentation (CDI) on the three-dimensional spinal deformity in 24 consecutive patients with idiopathic scoliosis was investigated by posteroanterior and lateral radiographs and by computed tomography preoperatively, postoperatively, and at a mean follow-up of 3.2 years (range 2.0–5.3 years). At follow-up the mean Cobb angle was decreased by 73%, and the translation of the apical vertebra was significantly decreased by 33%. The sagittal contour was significantly improved with thoracic kyphosis T5–12 increased by 46% (6.9°) and lumbar lordosis L1–5 increased by 28% (10.3°) at follow-up. The sagittal diameter was significantly improved by 5 mm at follow-up. Although the vertebral rotation and the size of rib hump was improved postoperatively, this was followed by significant loss of correction, and at follow-up the vertebral rotation and the size of rib hump were not significantly better than preoperatively. The study indicates that while CDI improves the coronal and sagittal plane deformity permanently, the effect on vertetebral rotation and the rib hump deteriorates with time.
References
Aaro S, Dahlborn M (1981) Estimation of vertebral rotation, and the spinal and rib cage deformity in scoliosis by computer tomography. Spine 9:220–222
Aaro S, Dahlborn M (1982) The effect of Harrington instrumentation on the longitudinal axis rotation of the apical vertebra and on the spinal and rib cage deformity in idiopathic scoliosis studied by computer tomography. Spine 7:456–462
Adams W (1865) Lectures on the pathology and treatment of lateral and other forms of curvature of the spine. Churchill, London
Bauer R, Mostegl A, Hingshammer R (1988) Cotrel-Dubousset instrumentation for the correction of spinal curvature. Arch Orthop Trauma Surg 107:364–368
Beaumont SE, Burwell RG, Webb JK, Wojcik A (1989) The effects of Cotrel-Dubousset operation on back shape and spinal movement: preliminary findings. J Bone Joint Surg [Br] 71:153
Bernhardt M, Bridwell K (1989) Segmental analysis of the sagittal plane alignment of the normal thoracic and lumbar spines and thoracolumbar junction. Spine 14:717–721
Birch JG, Herring JA, Roach JW, Johnston C (1988) Cotrel-Dubousset instrumentation in idiopathic scoliosis. Clin Orthop 227:24–29
Bridwell K, Betz R, Capelli AM, Huss G, Harvey C (1990) Sagittal plane analysis in idiopathic scoliosis patients treated with Cotrel-Dubousset instrumentation. Spine 15:921–926
Cobb JR (1948) Outline for the study of scoliosis. Am Acad Orthop Surg Lect 5:261–275
Cochran T, Irstam L, Nachemson A (1983) Long-term anatomic and functional changes in patients with adolescent idiopathic scoliosis treated by Harrington rod fusion. Spine 8:576–584
Cotrel Y, Dubousset J, Guillaumat M (1988) New universal instrumentation in spinal surgery. Clin Orthop 227:10–23
Cundy PJ, Paterson DC, Hillier TM, Sutherland AD, Stephen JP, Foster B (1990) Cotrel-Dubousset instrumentation and vertebral rotation in adolescent idiopathic scoliosis. J Bone Joint Surg [Br] 72:670–674
Dickson JH, Erwin WD, Rossi D (1990) Harrington instrumentation and arthrodesis for idiopathic scoliosis. J Bone Joint Surg [Am] 72:678–683
Dubousset J, Graf H, Miladi L, Cotrel Y (1986) Spinal and thoracic derotation with CD instrumentation. Orthop Trans 10:36
Ecker ML, Betz RR, Trent PS et al (1988) Computer tomography evaluation of Cotrel-Dubousset instrumentation in idiopathic scoliosis. Spine 13:1141–1144
Fitch R, Turi M, Bowman B, Hardaker W (1990) Comparison of Cotrel-Dubousset and Harrington rod instrumentation in idiopathic scoliosis. J Pediatr Orthop 10:44–47
Gray JM, Smith BW, Ashley RK, LaGrone MO, Mall J (1991) Derotational analysis of Cotrel-Dubousset instrumentation in idiopathic scoliosis. Spine 16 [Suppl 8]:S391-S393
Harrington PR (1962) Treatment of scoliosis. J Bone Joint Surg [Am] 44:591–610
Howie G, Transfeldt EE, Bradford D, Heithoff K, Waldbillig K (1986) Changes in vertebral rotation, rib hump and lung volume following surgery for idiopathic thoracic scoliosis. Orthop Trans 10:27
Hullin MG, McMaster MJ, Draper ERC, Duff E (1991) The effect of Luque segmental sublaminar instrumentation on the rib hump in idiopathic scoliosis. Spine 16:402–408
Krishmer M, Bauer R, Sterzinger W (1992) Scoliosis correction by Cotrel-Dubousset instrumentation. Spine 17 [Suppl 8]: S263-S269
Lenke LG, Bridwell KH, Baldus C, Blanke K (1992) Analysis of pulmonary function and axis rotation in adolescent and young adult idiopathic scoliosis patients treated with Cotrel-Dubousset instrumentation. J Spinal Disord 5:16–25
Marchesi DG, Trandfeldt EE, Bradford DS, Heithoff K (1992) Changes in vertebral rotation after Harrington and Luque instrumentation for idiopathic scoliosis. Spine 17:775–780
McMaster M (1989) Luque rod instrumentation in the treatment of adolescent idiopathic scoliosis. A comparative study with Harrington instrumentation. J Bone Joint Surg [Br] 73: 982–989
Ogilvie J, Schendel M (1988) Calculated thoracic volume as related to parameters of scoliosis correction. Spine 13:39–42
Richards B (1992) Measurement error in assessment of vertebral rotation using the Perdriolle torsionmeter. Spine 17:513–517
Rose J, Tredwell SJ, Bannon M, Sawatsky B (1989) ISIS review of Cotrel-Dubousset instrumentation for adolescent idiopathic scoliosis. (95–97, Sauramps)
Shufflebarger HL, Ellis RD, Clark C (1989) Cotrel-Dubousset instrumentation in adolescent idiopathic scoliosis. Orthop Trans 13:79–80
Willers U, Hedlund R, Westman L (1990) Comparison of two measurements of vertebral rotation in scoliosis. Acta Orthop Scand [Suppl] 237:51
Winter RB (1992) Surgical correction of rigid right thoracic lordoscoliosis. J Spinal Disord 5:108–111
Wojcik AS, Webb JK, Burwell R (1990) Harrington-Luque and Cotrel-Dubousset instrumentation for idiopathic scoliosis. Spine 15:424–431
Wood K, Transfeldt EE, Ogilvie JW, Schendel MJ, Bradford D (1991) Rotational changes of the vertebral-pelvic axis following Cotrel-Dubousset instrumentation. Spine 16:S404-S407
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Willers, U., Hedlund, R. & Aaro, S. Mid-term effects of Cotrel-Dubousset instrumentation on the configuration of the spine and the thoracic cage in thoracic idiopathic scoliosis. Eur Spine J 2, 99–103 (1993). https://doi.org/10.1007/BF00302711
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DOI: https://doi.org/10.1007/BF00302711
Mots-clés
- Tomodensitométrie
- Instrumentation de Cotrel-Dubousset
- Scoliose idiopathique
- Gibbosité
- Rotation vertébrale