EXPERIMENTAL MODEL OF TRANSPEDICULAR FIXATION OF A GROWING SPINAL MOTIONAL SEGMENT
https://doi.org/10.14531/ss2007.1.75-80
Abstract
Objective. To develop an experimental model of transpedicular fixation and to study the effect of such fixation on a growing spinal motional segment.
Material and Methods. Age-related anatomic and histological peculiarities of the lumbar vertebrae were studied in ten 3-month-old puppies. Another 20 puppies were divided into four groups and underwent transpedicular fixation at L3-L4.
Results. It was revealed that a histological structure of the vertebral body and pedicle in puppies is identical to that in younger children. X-ray examinations revealed stability of screws and constructions in four groups during the observation period. There were no torsion deformations of the vertebral bodies, canal stenosis and deformation of adjacent segments.
Conclusion. Basing on the created experimental model it was revealed that transpedicular fixation did not exert negative effect on a growth and development of a fixed spinal motional segment in experimental animals.
About the Authors
Sergey Valentinivich Vissarionov
Research Pediatric Orthopaedic Institute n.a. G.I. Turner, St. Petersburg
Russian Federation
Russian Federation
Dmitry Nikolayevich Kokushin
Children City Clinical Hospital No.5 n.a. N.F. Filatov, St. Petersburg
Russian Federation
Russian Federation
References
1. Михайловский М.В., Фомичев Н.Г. Хирургия деформаций позвоночника. Новосибирск, 2002.
2. Ким В.Дж., Койллард К., Ралми С. и др. Влияние сегментарной транспедикулярной фиксации на активно растущий позвоночник: длительное экспериментальное исследование // Хирургия позвоночника. 2005. № 1. С. 105–111.
3. Ульрих Э.В., Виссарионов С.В., Мушкин А.Ю. Хирургическое лечение врожденных сколиозогенных нарушений формирования позвонков у детей раннего возраста с использованием имплантатов транспедикулярной фиксации // Хирургия позвоночника. 2005. № 3. С. 56–60.
4. Ульрих Э.В. Аномалии позвоночника у детей. СПб., 1995.
5. Ульрих Э.В., Мушкин А.Ю. Вертебрология в терминах, цифрах, рисунках. СПб., 2002.
6. Cil A., Yazici M., Daglioglu K., et al. The effect of pedicle screw placement with or without application of compression across the neurocentral cartilage on the morphology of the spinal canal and pedicle in immature pigs // Spine. 2005. Vol. 30. P. 1287–1293.
7. Ferree B.A. Morphometric characteristics of pedicles of the immature spine // Spine. 1992. Vol. 17. P. 887–891.
8. Maat G.J., Matricali B., van Persijn van Meerten E.L. Postnatal development and structure of the neurocentral junction. Its relevance for spinal surgery // Spine. 1996. Vol. 21. P. 661–666.
9. Ruf M., Harms J. Pedicle screws in 1- and 2-year-old children: technique, complications, and effect on further growth // Spine. 2002. Vol. 27. P. 460–466.
10. Wild A., Jager M., Kramer R., et al. A new technique for the surgical management of deformities in the growing spine // Biomed Tech (Berl). 2002. Vol. 47. P 270–271.
11. Zindrick M.R., Knight G.W., Sartori M.J., et al. Pedicle morphology of the immature thoracolumbar spine // Spine. 2000. Vol. 25. P. 2726–2735.
Review
For citations:
Vissarionov S.V., Kokushin D.N. EXPERIMENTAL MODEL OF TRANSPEDICULAR FIXATION OF A GROWING SPINAL MOTIONAL SEGMENT. Russian Journal of Spine Surgery (Khirurgiya Pozvonochnika). 2007;(1):075-080. (In Russ.) https://doi.org/10.14531/ss2007.1.75-80
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