原名「台灣學術線上」
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1
題名:Comparison of Stress Shielding among Different Cement Fixation Modes of Femoral Stem in Total Hip Arthroplasty-A Three-Dimensional Finite Element Analysis     (10點)
不同骨水泥固定方式對於全人工髖關節置換術後應力遮蔽之比較-有限元素分析
著者:Weng-Pin Chen(陳文斌) ;Ching-Lung Tai(戴金龍) ;Mel S. Lee(李炫昇) ;Po-Chen Lee(李柏成) ;Chun-Ping Liu(劉俊平) ;Chun-Hsiung Shih(施俊雄)
出版地區:台灣
出版城市:台南市
學科:醫學綜合
關鍵字:有限元素分析 ; 應力遮蔽 ; 骨水泥 ; 全人工髖關節置換 ; Finite element analysis ; Stress shielding ; Cemented fixation ; Total hip arthroplasty
刊名:Journal of Medical and Biological Engineering
卷期:24卷4期(2004.12)
頁碼:183-187
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

以骨水泥或無骨水泥方式施行人工髖關節置換手術後,股骨近端皮質骨發生區域性骨質流失現象始終是骨科界無法解決的問題。應力遮蔽被公認為是造成骨質流失現象的主因之一。本研究以有限元素分析方法,針對無骨水泥、股骨柄上端包覆及股骨柄外圍全部包覆骨水泥等三種固定情況下,施行人工髖關節置換手術後三者間應力遮蔽及術後骨質流失的差異性。研究的方法,是利用人造股骨及電腦斷層影像分別建立完整股骨及以上述三種不同骨水泥固定方式施行人工髖關節置換手術後之股骨三維有限元素模型。在1,000牛頓的垂直壓力作用下,分別比較四種股骨之應變分佈差異性。分析結果顯示,無論以何種方式植入股骨柄,術後股骨近端均將產生應力遮蔽現象,其中以股骨柄上端包覆固定者所產生之應力遮蔽現象最為輕微;無水骨泥固定者最為顯著。我們研判,骨水泥的介入將使術後股骨應力分佈更為均勻,有利於減輕應力遮蔽效應。
Local bone loss after cementless and cemented implantation of prostheses remains an unsolved problem during the long-term application of total hip replacement. Stress shielding is considered to be one of several important factors that result in local bone loss after prosthesis implantation. This study was designed to investigate the roles of bone cement different fixation configurations on initial stress shielding using a three-dimensional finite element analysis. Synthetic femora were used to create four finite element models including intact, and femora after implantation of C-fit stem with three different configurations of cement fixation: cementless, proximally-cemented and fully-cemented fixations. Under a 1,000-N vertical loading, the proximal strain distributions of the four models were analyzed and compared. The results revealed that, regardless of cement fixation configurations, stress shielding was found at the proximal femur following the insertion of stem. Less stress shielding was found for femur with fully-cemented fixation, whereas the most obvious stress shielding was found in the femur with cementless fixation. The introduction of bone cement was considered to produce more uniform transmission of external force, which led to the reduction of stress shielding.


    

本卷期目次
Journal of Medical and Biological Engineering 24卷4期 (2004.12)
Quantification of Shoulder Joint Passive Rotation Range of Motion in Vivo/ Hui-Ting LinAr-Tyan HsuJia-Rea Chang ChienGuan-Liang Chang
Foot Pressures in Feet after Mitchell Osteotomy for Hallux Valgus/ Wen-Lan WuPeng-Ju HuangYuh-Min ChengShen-Kai ChenJyh-Jong Chang
Comparison of Stress Shielding between Straight and Curved Stems in Cementless Total Hip Arthroplasty-An in vitro Experimental Study/ Ching-Lung TaiWeng-Pin ChenMel S. LeePo-Chen LeeChun-Hsiung Shih
Comparison of Stress Shielding among Different Cement Fixation Modes of Femoral Stem in Total Hip Arthroplasty-A Three-Dimensional Finite Element Analysis/ Weng-Pin ChenChing-Lung TaiMel S. LeePo-Chen LeeChun-Ping LiuChun-Hsiung Shih
Gait Analysis of Slope Lateral Walking: A Preliminary Study/ Chien-Ju LinLin-Hwa WangFong-Chin Su
Cavity Dimension Effect on MOD Dental Restoration Filled with Resin Composite-A Finite Element Interface Stress Evaluation/ Chih-Han ChangChin-Lan FangJui-Ting HsuChang-Pen ChenShu-Fen Chuang
Finite Element Analysis of Cage Subsidence in Cervical Interbody Fusion/ Ming-Fu ChiangJui-Min TengChang-Hung HuangCheng-Kung ChengChen-Sheng ChenTing-Kuo ChangShi-Hui Chao
Kinematics of Lower Extremity in Tennis Flat and Spin Serve/ Kuo-Cheng LoLin-Hwa WangChia-Ching WuFong-Chin Su
 
   
 
   

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