生物力学

The rationale for an inferior screw close to the calcar is that the inferior cortex can act as a buttress for an adjacent screw if good screw purchase in the femoral head is obtained.

靠近股骨距的螺钉的生物力学原理是下方的皮质能形成附近螺钉的支撑，如果这个螺钉位置很好的话。

The results show that: the input of the internal fixation implant should be in accordance with the compressive trabeculae and be clingy with the femoral calcar; the stress distribution of the femur under external violence explained why the old people are easy to get the middle and low part fractures of the femoral neck and intertrochanteric fractures.

分析结果表明：股骨颈处的压力骨小梁和股骨距是重要的承载结构，临床医学治疗股骨颈骨折时，内固定物的放置应循压力骨小梁方向并尽量紧贴股骨距钻入；暴力作用时股骨上端的应力分布特点从生物力学的角度说明了老年人易于发生股骨颈中下段骨折和转子间骨折的原因。

The external fixator was a good, economical, effective and simple method in the treatment of femoral neck fracture. The three pins used in fixation of femoral neck fracture are important. The placement of the pins should be in accordance with the compressive trabeculae and clingy to the femoral calcar.

3动力髋螺钉虽然在固定强度上优于其它各组，但却由于手术创伤大、对股骨头残存血供破坏较大等缺点而限制了其应用；自行设计的外固定支架为一种简单、有效、实用、经济的固定方法，有一定的推广价值；穿针方向应循压力骨小梁方向尽量贴近股骨距低角度倒三角形钻入才符合生物力学原理。

Bipolar hemiarthroplasty for intertrochanteric fracture is indicated for patients of more than 80 year old, thus the organic or systemic malfunctions should be corrected during perioperative period. Meanwhile, retaining of lesser trochanter and reconstruction of calcar femorale are of vital importance for improving periprosthetic biomechanics and reducing local complications.

人工股骨双动头置换术治疗股骨转子间骨折适用于80岁以上病人，因此在围手术期应尽可能纠正全身各器官及系统功能异常，同时，保留小粗隆并重建股骨距对改善假体周围生物力学及减少局部并发症具有重要意义。

(1) The input of the internal fixation implant should be in accordance with the compressive trabeculae and be clingy with the femoral calcar, Abduction in small degree (10-30°) will improve the stress in femoral neck region. The stress distribution of the femur under extemal violence explained why the old people are easy to get the middle and low part fractures of the femoral neck and intertrochanteric fractures.(2) The finite element model of femoral neck fracture is good in orrowing various fixation methods for femoral neck fracture.

(1)三维有限元方法用于研究不规则物体是一种有效、准确的数值方法，不仅能考虑到所研究物体的几何形状，而且也考虑到物体的内部结构特性；股骨颈处的压力骨小梁和股骨距是重要的承载结构，内固定物的放置应循压力骨小梁方向尽量紧贴股骨距钻入；载荷主要通过压力骨小梁和股骨距传导至股骨干的中下1/3处；一定角度的下肢外展（10-30°）会较明显的增加股骨颈区的应力，而下肢的内收反而会减小此区的应力；暴力作用时股骨上端应力分布特点从生物力学角度说明老年人易于发生股骨颈中下段骨折和转子间骨折的原因。

OBJECTIVE: To summarize the application and characteristics of sports biomechanics in various sports, especially in calisthenics.

目的：概述运动生物力学在各体育运动，尤其是健美操运动中的应用及特征。

OBJECTIVE: To study the biomechanical properties of cancellous bone.

目的：了解松质骨的生物力学特性。

To discuss the different influence of cataplasia in the adjacent lumbar segmenta and offer theoretical instruction for clinic,the research was carried out by observing the biomechanical influence in the adjacent segmenta after different lumbar intervertebrae been fused.

通过对不同腰椎水平椎间融合后对邻近节段生物力学影响的研究，探讨因融合在不同腰椎水平对邻近节段退变影响的差异，为临床行腰椎融合术时提供指导意义。

Objectives 】 To discuss the different influence of cataplasia in the adjacent lumbar segmenta and offer theoretical instruction for clinic,the research was carried out by observing the biomechanical influence in the adjacent segmenta after different lumbar intervertebrae been fused.

通过对不同腰椎水平椎间融合后对邻近节段生物力学影响的研究，探讨因融合在不同腰椎水平对邻近节段退变影响的差异，为临床行腰椎融合术时提供指导意义。

Growing consideration has been given in the past 20 years to the biomechanical characteristics of chiropractic adjustments.

生长已考虑在过去20年来的整脊调整的生物力学特性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新