山东理工大学学报（自然科学版）
山東理工大學學報（自然科學版）
산동리공대학학보（자연과학판）
JOURNAL OF SHANDONG UNIVERSITY OF TECHNOLOGY(SCIENCE AND TECHNOLOGY)
2015年
3期
60-63
,共4页
韩诗杭%董黎敏%李炫%叶金铎%张春秋
韓詩杭%董黎敏%李炫%葉金鐸%張春鞦
한시항%동려민%리현%협금탁%장춘추
有限元分析%镁合金接骨板%钛合金接骨板%骨愈合
有限元分析%鎂閤金接骨闆%鈦閤金接骨闆%骨愈閤
유한원분석%미합금접골판%태합금접골판%골유합
finite element analysis%magnesium alloy plates%titanium plates%bone healing
探究 AZ31镁合金接骨板与传统钛合金接骨板在治疗骨折过程中力学性能的异同。根据人体股骨 CT 图片进行股骨的三维重建，将模型导入 ANSYS 中进行接骨板接骨钉的建模，进行有限元分析。设定镁合金为实验组，钛合金为对照组，分别模拟断裂时期、愈合前期与愈合后期进行计算，提取接骨板与股骨上8个位置的应力进行统计分析。结果表明，钛合金对照组中，处于股骨上的4个关键点为压缩，而处于接骨板上4个关键点为拉伸，随着骨折的愈合，接骨板上各关键点位置的应力值减小，而股骨上关键点位置应力值增大；镁合金实验组结果与钛合金组类似，而钛合金组的应力值一般大于镁合金组。愈合过程中，股骨内侧一般为压缩，接骨板侧一般为拉伸，镁合金接骨板与钛合金接骨板8处位置规律基本一致，而随着骨折的逐渐愈合，股骨内侧所受应力逐渐增大，而接骨板外侧具有减小的趋势，镁合金接骨板与钛合金接骨板在治疗骨折过程中具有相似的力学特性。
探究 AZ31鎂閤金接骨闆與傳統鈦閤金接骨闆在治療骨摺過程中力學性能的異同。根據人體股骨 CT 圖片進行股骨的三維重建，將模型導入 ANSYS 中進行接骨闆接骨釘的建模，進行有限元分析。設定鎂閤金為實驗組，鈦閤金為對照組，分彆模擬斷裂時期、愈閤前期與愈閤後期進行計算，提取接骨闆與股骨上8箇位置的應力進行統計分析。結果錶明，鈦閤金對照組中，處于股骨上的4箇關鍵點為壓縮，而處于接骨闆上4箇關鍵點為拉伸，隨著骨摺的愈閤，接骨闆上各關鍵點位置的應力值減小，而股骨上關鍵點位置應力值增大；鎂閤金實驗組結果與鈦閤金組類似，而鈦閤金組的應力值一般大于鎂閤金組。愈閤過程中，股骨內側一般為壓縮，接骨闆側一般為拉伸，鎂閤金接骨闆與鈦閤金接骨闆8處位置規律基本一緻，而隨著骨摺的逐漸愈閤，股骨內側所受應力逐漸增大，而接骨闆外側具有減小的趨勢，鎂閤金接骨闆與鈦閤金接骨闆在治療骨摺過程中具有相似的力學特性。
탐구 AZ31미합금접골판여전통태합금접골판재치료골절과정중역학성능적이동。근거인체고골 CT 도편진행고골적삼유중건，장모형도입 ANSYS 중진행접골판접골정적건모，진행유한원분석。설정미합금위실험조，태합금위대조조，분별모의단렬시기、유합전기여유합후기진행계산，제취접골판여고골상8개위치적응력진행통계분석。결과표명，태합금대조조중，처우고골상적4개관건점위압축，이처우접골판상4개관건점위랍신，수착골절적유합，접골판상각관건점위치적응력치감소，이고골상관건점위치응력치증대；미합금실험조결과여태합금조유사，이태합금조적응력치일반대우미합금조。유합과정중，고골내측일반위압축，접골판측일반위랍신，미합금접골판여태합금접골판8처위치규률기본일치，이수착골절적축점유합，고골내측소수응력축점증대，이접골판외측구유감소적추세，미합금접골판여태합금접골판재치료골절과정중구유상사적역학특성。
To explore the similarities and differences of mechanical properties in AZ31 magnesium alloy and traditional titanium in treating femoral fracture,we conducted three-dimensional recon-struction of the femur by human femur CT image,imported the model into ANSYS,then mod-eled plates and bone screws,and carried out finite element analysis.Magnesium alloy was as the experimental group and titanium was the control group.Fracture period,early healing period,and late healing period were simulated.The stress of 8 key points in plate and femur were extracted and analyzed.The results showed that four key points on the femur of the titanium control group were compressed in the bone healing period,while four key points on bone plate is stretched.As the fracture healing,the value of key points in bone plate reduces,the value of key points in femur increases.The results of magnesium alloy experimental group were similar to the titanium control group,while the data of magnesium group was larger than that of titanium group.In conclusion in the bone healing period,the medial femur is compressed,and the side with plates is stretched. The regularity of 8 positions on the magnesium alloy plates are consistent with that on the titani-um plates.With the gradual healing of fracture,the stress of medial femur increases,while the stress of the side with plates decreases.The magnesium alloy plates and the titanium plates have similar mechanical properties in the process of fracture treatment.
