原名「台灣學術線上」
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1
題名:Comparison of Stress Shielding between Straight and Curved Stems in Cementless Total Hip Arthroplasty-An in vitro Experimental Study     (10點)
無骨泥式對稱型及解剖型股骨柄人工髖關節置換術後應力遮蔽之比較研究-體外力學測試
著者:Ching-Lung Tai(戴金龍) ;Weng-Pin Chen(陳文斌) ;Mel S. Lee(李炫昇) ;Po-Chen Lee(李柏成) ;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:對稱型股骨柄 ; 解剖型股骨柄 ; 應力遮蔽 ; 應變量測 ; 全人工髖關節置換術 ; Straight stem ; Curved stem ; Stress shielding ; Strain measurement ; Total hip arthroplasty
刊名:Journal of Medical and Biological Engineering
卷期:24卷4期(2004.12)
頁碼:177-181
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

以骨泥或無骨泥方式施行人工髖關節置換手術後,股骨近端硬質骨均將發生骨質重塑改變。應力遮蔽效應是在諸多造成骨質重溯現象中最重要因素之一,其主要原因來自股骨柄於植入股骨後所產生的應力分佈重大改變。為深入了解目前臨床上常使用之對稱型及解剖型股骨柄於植入股骨後所產生骨質流失差異性,本研究乃設計以體外力學實驗,針對無骨泥固定情況下,以對稱型及解剖型股骨柄施行人工髖關節置換手術後,比較術後二者間應力遮蔽效應的差異性。實驗的方法,是利用單軸向應變規及人造股骨進行股骨近端硬質骨之表面應變量測。以八件人造股骨依股骨柄之外型區分為對稱型(C-Fit)及解剖型(PCA)兩組(每組四件),在1,000N的壓力負荷下,分別比較上述二種不同幾何形狀之股骨柄在無骨泥植入情況下,二者間股骨近端硬質骨應變值的差異性。實驗結果顯示,在無骨泥植入情況下,植入解剖型股骨柄之股骨近端應力遮蔽效應較對稱型股骨柄顯著。本研究結果有效證實以無骨泥方式施行解剖型股骨柄置換手術後,將產生較明顯之應力遮蔽效應。
Adaptive bone remodelings in the proximal femur often occur following either cemented or uncemented total hip arthroplasty (THA). Stress shielding is one of the most significant determinants of this bone remodeling, and it results from changes in force distribution following prosthetic implantation. In order to evaluate the alteration of stress distribution after implantation of straight or curved femoral stem, this study was designed to compare the difference of stress shielding for straight and curved stems in cementless THA using in vitro experimental method. Uniaxial strain gauges and synthetic femora were used to perform the surface strain measurement of proximal femora. A total of eight synthetic femora were enrolled and assigned into C-Fit (Straight stem) and PCA (Curved stem) groups (four in each). Under 1,000-N axial loading, the surface strains of proximal femora were measured and compared between C-Fit and PCA implanted femora with press-fit fixation. The results revealed that the straight stem group got less stress shielding as compared to that of the curved stem group. We concluded that curved stem caused a more significant stress shielding as compared to those with straight stem.


    

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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