摘要
目的设计并研制针对髋臼方区骨折的钩钢板,与重建钢板对比进行单足站立位的生物力学实验。方法取成年防腐尸体5具。将同一骨盆的左右侧按随机数字表法分为实验组和对照组(每组5例),以期消除不同髋臼样本之间的外在影响因素。对标本造成相同的髋臼"T"型骨折,分别在同一标本两侧的髋臼四方区处给予髋臼方区钩钢板内固定(实验组)与重建钢板(3.5mm)+后柱螺钉内固定(对照组),进行生物力学实验,比较两类钢板在相同类型骨折固定中的生物力学稳定性。结果在200、400、500N载荷下实验组骨折端的最大位移与对照组比较差异均无统计学意义(均P>0.05)。结论髋臼方区钩钢板能满足髋臼方区骨折内固定的稳定性要求,其力学性能安全、优越、可靠。与普通的前柱重建钢板+后柱拉力螺钉结构相比,其坚固及稳定性无明显差异。
Objective To design and develop a hook plate for acetabular fractures,and to evaluate its biomechanical stability in single foot standing posture through comparison with reconstruction plate.Methods The left and right sides of the pelvises of 5adult corpses were randomly divided into experimental group（n=5）and control group（n=5）in order to eliminate the external factors among different samples of the acetabulum.The same acetabular T-type fractures were made in all samples.The hook plate internal fixation was performed in experimental group,and reconstruction plate（3.5mm）plus posterior column screw internal fixation in control group.Biomechanical experiments were carried out in both groups to compare the biomechanical stability of the two types of steel plate.Results There were no significant differences in the maximum displacement of fractures under 200,400 and 500Nloads between the two groups（P〈0.05）.Conclusion The acetabular hook plate can meet the requirement for stability of internal fixation of acetabular fractures with safe,superior and reliable mechanical property.The firmness and stability of hook plate internal fixation are not significantly different from those of reconstruction plate plus posterior column screw internal fixation.
出处
《南昌大学学报（医学版）》
CAS
2015年第1期15-19,共5页
Journal of Nanchang University：Medical Sciences
关键词
髋臼骨折
方区钩钢板
单足站立位
生物力学研究
acetabular fractures
hook plate
single foot standing posture
biomechanical study
