查詢結果分析
相關文獻
- Comparison of Stress Shielding between Straight and Curved Stems in Cementless Total Hip Arthroplasty--An in Vitro Experimental Study
- 人工髖關節之模組化有限元素網格建立及接觸應力分析
- 數位剪切成像技術在土木結構非破壞檢測之應用
- Posterior Capsulorrhaphy in Primary Total Hip Arthroplasty
- 全人工髖關節置換術最近發展趨勢
- Dynamic Strain Measurement of Composite Structure Utilizing Embedded Fiber Optical Sensor
- 髖關節術後骨質密度變化之電腦模擬分析
- Postoperative 6-Month and 1-Year Evaluation of Health-Related Quality of Life in Total Hip Replacement Patients
- Retrieval Study of Failed HA Coated Acetabular Cups
- 塑性變形體之三維變形與表面應變之雙攝影機量測
頁籤選單縮合
題 名 | Comparison of Stress Shielding between Straight and Curved Stems in Cementless Total Hip Arthroplasty--An in Vitro Experimental Study=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 |
---|---|
作 者 | 戴金龍; 陳文斌; 李炫昇; 李柏成; 施俊雄; | 書刊名 | Journal of Medical and Biological Engineering |
卷 期 | 24:4 2004.12[民93.12] |
頁 次 | 頁177-181 |
分類號 | 416.61 |
關鍵詞 | 對秩型股骨柄; 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; |
語 文 | 英文(English) |
中文摘要 | 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。 |
英文摘要 | 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. |
本系統中英文摘要資訊取自各篇刊載內容。