植入兔体内的骨水泥和钛螺钉的取出扭矩。

Removal torque for bone-cement and titanium screws implanted in rabbits.

作者信息

Morberg P, Albrektsson T

机构信息

University of Gothenburg, Department of Handicap Research, Sweden.

出版信息

Acta Orthop Scand. 1991 Dec;62(6):554-6. doi: 10.3109/17453679108994495.

DOI:10.3109/17453679108994495

PMID:1767647

Abstract

Screw-shaped implants of commercially pure titanium and polymerized methyl methacrylate were inserted into the rabbit tibia. The animals were divided into two groups, and the implants were unscrewed after 5 weeks and 9 months, respectively. After both intervals, removal torque was greatest for the titanium implants. This difference was probably due to lower biocompatibility for the plastic material.

摘要

将商业纯钛和聚甲基丙烯酸甲酯聚合而成的螺旋形植入物插入兔胫骨。动物被分为两组，植入物分别在5周和9个月后拧出。在这两个时间段后，钛植入物的取出扭矩最大。这种差异可能是由于塑料材料的生物相容性较低。