摘要
目的：对我院设计的多功能股骨板（ＭｕｌｔｉＦｕｎｃｔｉｏｎ Ｐｌａｔｅ，ＭＦＦＰ）应用于股骨粗隆间不稳定骨折进行生物力学分析，为临床应用提供科学依据。方法：按生物力学原理，在１２具新鲜尸体标本股骨上端内、外侧贴有４枚应变片进行强刚度等分析。结果：实验研究表明：①多功能股骨板（ＭＦＦＰ）系统能降低股骨距上载荷并增加骨折断端的稳定性；②加压滑动髁螺钉、鹅头钉及ＤＨＳ却增加了载荷并降低了骨折的稳定性；③多功能股骨板（ＭＦＦＰ）系统固有的强刚度适应和改善了股骨近端不稳定骨折处骨的重建和骨折愈合的力学环境，强刚度对照比较具有显著性差异（Ｐ＜０．０５）。结论：ＭＦＦＰ结构合理、生物力学性能好，三维固定，防旋性能优越，操作简便，易于推广，应用范围广泛，属多功能型。
In order to provide the scientific bats for clinical application, we analysed thebiomechanic of self-designed multi-function femoral plate(MFFP) on unstable intertrochantericfracture of femur. Methods: Four sensitive load cell were laid on the medial and lateral of proximalfemurs of twelve fresh cadaver to analyse the stress and strength. Results: The results showed thatMFFP system can lower the stress of femoral calcar and increase the stability of fracture, while thedynamic hip screw(DHS), slide hip screw and dynamic condyle screw(DCS) increase the stress offermoral calcar and lower the stability of fracture. The results also showed that inherent stress andstrength of the MFFP system can improve and suit the mechanical environment of bonere-establishement and intention of the instability of proximal femoral fracture. Conclusions: TheMFFP system has the follwing advantages, namely propel design with reliable biomechanicalperfomance, possesses more effctive ability of anti-rotation, three-dimensional fixation and easy tohandle. Therefore, it is worth popularization.
出处
《医用生物力学》
EI
CAS
CSCD
1999年第4期232-237,共6页
Journal of Medical Biomechanics
关键词
股骨粗隆间骨折
生物力学
股骨板
MFFP
Intertrochanteric fractuer of femur, Internal fixation, Biomechanical.
