Effect on the spine growth of the immature rabbits at different month-age with posterior spinal fusion (experimental research on crankshaft phenomenon of spine)
- VernacularTitle:不同月龄幼兔脊柱后路固定对其生长发育的影响
- Author:
Hanlin WANG
;
Yazhou LI
;
Zhiqiang WANG
- Publication Type:Journal Article
- Keywords:
lumbar vertebra;
crankshaft phenomenon;
posterior spinal fusion and fixation;
immature rabbit
- From:
Orthopedic Journal of China
2006;0(21):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To explore the effect on spinal growth and devetopment at different month-age of immature rabbits with spinal fusion and fixation;and to explain the mechanism of crankshaft phenomenon after child scoliosis treatment.[Method]Twenty-four 6-weeks-old rabbits and 24 15-weeks-old rabbits were randomly divided into 2 groups.Various lengths of lumbar vertebral region were fused posteriorly and fixed with wires,and the Cobbs angle in the frontal and saglttal planes were measured after the surgery.[Result]The lumbar spine of each group became lordosis with different degree.It was most obvious in the group which were fused in 7 lumbar vertebraes at 6-month-week age.The multiple linear regression outcomes show significance among different month-age,different lengths of fusion region and the Cobbs angle.[Conclusion]In the imature rabbits,if their lumbar vertebrae were posteriorly fixed only may be appeared and getting serious gradually due to the potential growth of anterior spinal column.There has significant correlation among the degree of skelecton immature,fused segment length and spine lordosis.
