摘要
采用自制的外固定延长器对30只家兔以不同速度缓慢延长后肢胫骨,观察胫神经形态与组织学改变,结果表明:以1mm/d速度延长肢体时,神经也随之延长,缓慢牵引力能刺激神经组织生长,未引起神经功能及结构损伤;以2mm/d速度延长时,肢体延长率在40％以内也是安全的;若超过这一限度,神经将发生明显功能与形态损伤。
The effects of gradual tibia lengthening at different speeds on the histomorphology of tibial nerve were studied in 30 rabbits by self-made external distraction device. It was showed that the leg was tracted at the speed of 1 mm/d, the tibial nerve was lengthened correspondingly. Gradual stress could stimulate the growth of nervous tissue and no nervous functional and constructural injuries were found When the leg was distracted at the speed of 2 mm/d, limb elongation within 40% was safe, otherwise, severe nervous damage would occur.
出处
《第二军医大学学报》
CAS
CSCD
北大核心
1992年第4期366-369,共4页
Academic Journal of Second Military Medical University
关键词
骨增长
神经组织
血管造影术
兔
bone lengthening nerve tissue
angiography, animals
rabbits
