Initial stability of femoral neck osteosynthesis with absorbable self-reinforced poly-L-lactide (SR-PLLA) and metallic screws: a comparative study on 21 cadavers.

Vasenius J; Pohjonen T; Tormala P; Penttila A; Rokkanen P

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Initial stability of femoral neck osteosynthesis with absorbable self-reinforced poly-L-lactide (SR-PLLA) and metallic screws: a comparative study on 21 cadavers.

机译：可吸收的自增强聚L-丙交酯（SR-PLLA）和金属螺钉固定股骨颈的初步稳定性：对21具尸体的比较研究。

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The initial stability of femoral neck osteosynthesis provided by three self-reinforced poly-L-lactide (SR-PLLA) or three metallic cannulated screws was compared. A standard transverse subcapital osteotomy was created with a hand saw in 19 pairs of human cadaver femora. Two fixation methods were randomly used in each pair. Fixations were exposed to a progressive cyclic loading test to determine the deflection curves, the ultimate load-carrying capacity, and the total amount of load absorbed. One pair served as a pilot and two nonoperated pairs served as controls. The positioning of the three fixation screws, whether one screw proximally and two screws distally or vice versa, provided equal stability. Metallic fixation proved to be more stable than SR-PLLA fixation as the average maximum load-carrying capacity was 3400N for the metallic and 2600N for the SR-PLLA fixation. However, SR-PLLA screws showed sufficient fixation properties for considering clinical trials in Garden I-II femoral neck fractures in well cooperative patients.

机译：比较了三个自增强聚L-丙交酯（SR-PLLA）或三个金属空心螺钉提供的股骨颈骨合成的初始稳定性。用手锯在19对人类尸体股骨上制作了标准的横向资本下截骨术。每对随机使用两种固定方法。将固定物暴露于渐进式循环载荷试验中，以确定挠曲曲线，极限载荷能力和吸收的载荷总量。一对用作飞行员，而两个非操作对用作对照。三个固定螺钉的位置（无论是近端的一个螺钉还是远端的两个螺钉，反之亦然）的位置均提供相同的稳定性。金属固定比SR-PLLA固定更稳定，因为金属的最大平均承载能力为3400N，SR-PLLA固定为2600N。但是，SR-PLLA螺钉显示出足够的固定特性，可以考虑在合作良好的患者的Garden I-II股骨颈骨折中进行临床试验。

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《Journal of biomedical materials research. Part B, Applied biomaterials.》 |1998年第2期|共5页
作者
Vasenius J; Pohjonen T; Tormala P; Penttila A; Rokkanen P;
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正文语种 eng
中图分类医用一般科学;
关键词
Biocompatible Materials; Bone Screws; Femoral Neck Fractures; Fracture Fixation; Internal; 生物相容性材料; 骨螺丝; 股骨颈骨折; 骨折固定术; 内; 骨整合; 骨切开术;

机译：Biocompatible Materials;Bone Screws;Femoral Neck Fractures;Fracture Fixation;Internal;生物相容性材料;骨螺丝;股骨颈骨折;骨折固定术;内;骨整合;骨切开术;

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1. Initial stability of femoral neck osteosynthesis with absorbable self-reinforced poly-L-lactide (SR-PLLA) and metallic screws: a comparative study on 21 cadavers. [J] . Vasenius J, Pohjonen T, Tormala P, Journal of biomedical materials research. Part B, Applied biomaterials. . 1998,第2期

机译：可吸收的自增强聚L-丙交酯（SR-PLLA）和金属螺钉固定股骨颈的初步稳定性：对21具尸体的比较研究。
2. Intramedullary fixation of distal femoral diaphyseal osteotomies with absorbable self-reinforced poly-L-lactide and metallic intramedullary rods assessed by plain radiographs, quantitative computed tomography, and magnetic resonance imaging: an exper [J] . Viljanen J, Kinnunen J, Bondestam S, Journal of biomedical materials research. Part B, Applied biomaterials. . 1998,第2期

机译：可吸收的自增强聚L-丙交酯和金属髓内棒对股骨远端dia骨截骨的髓内固定，通过X线平片，定量计算机断层扫描和磁共振成像评估：专家
3. Healing of subcapital femoral osteotomies fixed with self-reinforced poly-L-lactide screws: an experimental long-term study in sheep. [J] . Jukkala Partio K, Laitinen O, Vasenius J, Archives of orthopaedic and trauma surgery. . 2002,第6期

机译：用自我增强的聚-L-丙交酯螺钉固定的股下动脉股骨切开术的愈合：一项长期的实验性羊研究。
4. A biomechanical study of 150/spl deg/ vs. 135/spl deg/ hip screws in femoral neck fractures [C] . Lynn, G., Mukherjee, . 1995

机译：150 / spl deg /与135 / spl deg /髋螺钉在股骨颈骨折中的生物力学研究
5. Absorbable self-reinforced polylactide (SR-PLLA) rods vs rigid rods (K-wire) in spinal fusion: an experimental study in rabbits [O] . Murat Bezer, Yakup Yildirim, Bülent Erol, 2005

机译：脊柱融合中可吸收的自增强聚丙交酯（SR-PLLA）棒与刚性棒（K线）的比较：在兔中进行的实验研究
6. Osteosynthesis for Femoral Neck Fractures with Compression Hip Screw and Cannulated Cancellous Screw. [O] . Yuichi Watanabe, Kenji Yoshida, Hisashi Yamashita, 2001

机译：骨颈部骨折骨骨折，采用压缩髋螺杆螺钉和插管螺钉。

Initial stability of femoral neck osteosynthesis with absorbable self-reinforced poly-L-lactide (SR-PLLA) and metallic screws: a comparative study on 21 cadavers.

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