A BIOMECHANICAL ANALYSIS OF UNILATERAL HOOKED-SULCATED EXTERNAL FIXATOR ON OSTEOMINED TIBIA

A BIOMECHANICAL ANALYSIS OF UNILATERAL HOOKED-SULCATED EXTERNAL FIXATOR ON

OSTEOMINED TIBIA

段德宇;刘国平;杜靖远;饶振玉

【期刊名称】《中国医学科学杂志：英文版》 【年(卷),期】1998(013)001

【摘要】Four tibiae removed from 30～40 years males, who died of accidents in less than 12 hour, were osteomized at medium part. Then these tibiae were fixed by an unilateral hooked-sulcated external fixator (UHSEF), and the hone-fixator system was used as a model of external fixatitm of tibial fracture. The axial compression, distraction, torsion, antero-posterior and lateral bending rigidly and the strain of the pins were determined in this system, Based on the results, we found that compared with the configuration of four paralled pins,the rigidity of the fan-like configuratoa didn't decrease significantly if the angle between lateral and medium pins was less than 45°. But the reverse was true when the frame separation increased from 5 to 8 can. What'more, the pin strain decreased if the rigidity of the system was improved. These data provided a theoretical basis of biomechanies for the improvement of UHSEF.

【总页数】4页(49-52)

【关键词】外固定器;胫骨骨折;生物力学;临床研究