本文選題：關(guān)節(jié)成形術(shù) + 置換�。� 參考：《中國組織工程研究》2017年23期

【摘要】：背景:股骨矩在人工關(guān)節(jié)置換中具有重要作用,股骨矩的處理方法有骨水泥重建型和股骨矩骨折復(fù)位型,但關(guān)于那種處理方法更好的研究不多。目的:三維有限元分析股骨矩骨折復(fù)位型和骨水泥重建型重建股骨矩在老年股骨轉(zhuǎn)子間骨折人工關(guān)節(jié)置換中的生物力學(xué)特點(diǎn)。方法:建立股骨矩骨折復(fù)位型(模型A)和股骨矩骨水泥重建型(模型B)老年股骨轉(zhuǎn)子間骨折人工關(guān)節(jié)置換模型,觀察2種模型骨界面上的應(yīng)力分布、關(guān)節(jié)假體上應(yīng)力分布、整體應(yīng)力和兩模型的位移大小。結(jié)果與結(jié)論:(1)模型A的骨界面上最大應(yīng)變值和最大應(yīng)力值均大于模型B;模型A的假體最大應(yīng)變值和最大應(yīng)力值均大于模型B;模型A骨界面上和假體上應(yīng)力采集點(diǎn)、中應(yīng)力采集點(diǎn)和下應(yīng)力采集點(diǎn)的平均應(yīng)力值均高于模型B的平均應(yīng)力值(P0.05);(2)模型A的整體最大應(yīng)力值和最小應(yīng)力值均大于模型B;模型A的最大位移和最小位移均大于模型B;(3)結(jié)果表明,股骨矩骨折復(fù)位型老年股骨轉(zhuǎn)子間骨折人工關(guān)節(jié)置換模型的最大應(yīng)力和最大位移均大于股骨矩骨水泥重建型老年股骨轉(zhuǎn)子間骨折人工關(guān)節(jié)置換模型,股骨矩骨水泥重建型老年股骨轉(zhuǎn)子間骨折人工關(guān)節(jié)置換模型的應(yīng)力分布更均勻,股骨矩骨水泥重建較股骨矩骨折復(fù)位效果好。
[Abstract]:Background: femoral moment plays an important role in artificial joint replacement. The treatment methods of femoral moment include bone cement reconstruction type and femoral moment fracture reduction type. Objective: to analyze the biomechanical characteristics of femoral moment reconstruction in elderly patients with intertrochanteric fracture by three dimensional finite element method. Methods: the artificial joint replacement models of femoral moment fracture (model A) and femoral moment cement reconstruction (model B) were established. The stress distribution at the bone interface and the stress distribution on the prosthesis of the two models were observed. Global stress and displacement of the two models. Results and conclusion the maximum strain value and maximum stress value at the bone interface of model A were larger than that of model B, the maximum strain value and maximum stress value of model A were larger than that of model B, and the stress collection points on the interface and prosthesis of model A were higher than that of model B. The average stress value of the middle stress acquisition point and the lower stress acquisition point is higher than that of model B (P < 0.05) the global maximum stress value and the minimum stress value of model A are higher than that of model B, and the maximum and minimum displacement of model A are both large. The results show that, The maximum stress and maximum displacement of the prosthetic joint replacement model of the senile intertrochanteric fractures were greater than those of the old intertrochanteric fracture replacement model. The stress distribution of the prosthetic joint replacement model of the aged intertrochanteric fracture was more uniform than that of the femoral moment cement reconstruction model, and the reduction effect of the femoral moment bone cement reconstruction was better than that of the femoral moment fracture.
【作者單位】： 鄭州大學(xué)附屬鄭州中心醫(yī)院骨二科;
【基金】：基金資助:河南省科學(xué)技術(shù)廳(142102110183)~~
【分類號(hào)】：R318.17;R687.4

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