摘要
在隆鼻术中 ,假鼻体应埋于骨膜以下还是深筋膜以下一直是整形外科业内人士讨论的重要问题。本文着重研究了人鼻骨膜和深筋膜的生物力学特征 ,主要包括单轴拉伸下的强度、应力—应变及应力松弛。骨膜的强度较深筋膜大 ,且具有一定的弹性 ,但弹性不如深筋膜。在突加载荷下 ,骨膜的应力松弛较深筋膜少得多。因此 ,从生物力学的角度看 ,骨膜更厚 ,更坚韧 ,应力松弛更少 。
There are a lot of controversies that on which layer the silastic implants should be inserted in the augmentation rhinoplasty, i.e. subperiosteal or deep subfascial. This study is to investigate the biomechanical properties of human nasal periosteum and deep fascia, including tensile strength, stress-strain and stress relaxation characters under uniaxial tension system. The periosteum is stronger in tensile strength than that of the fascia, but it is less elastic. Under a sudden increase of load, the periosteum relaxes far less than the fascia. Therefore, in view of biomechanics, the periosteum is thicker, tougher, stiffer and less relaxation than facia, and thus has a better fixation effect.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
2002年第3期389-391,共3页
Journal of Biomedical Engineering
基金
国家自然科学基金资助项目 ( 10 0 72 0 0 6)
