total head

Alumina-on-alumina Total Hip Arthroplasty for Treatment of Femur Head Necrosis

全陶瓷人工髋关节置换术治疗股骨头坏死

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Objective To Compare the differences between the primary total hip arthroplasty ( THA) and THA after failure of conservative treatment of osteonecrosis of femoral head. Methods One hundred and twenty-six hips were retrospectively studied.

目的比较股骨头缺血坏死显微外科保头治疗失败后全髋关节置换（THA）与初次全髋关节置换的疗效差别。

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The paper introduces the structural features of FP dilution water head box and the control principle of the head box incorporated with DCS and QCS, including total head control, air cushion control and the pressure and the level control in stock distributor.

简要介绍了FP稀释水流浆箱的结构特点，论述了该流浆箱结合DCS和QCS的控制原理，包括流浆箱总压头控制、气垫控制、中心布浆器压力和液位控制。

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Objective: To measure the difference between medial tibial plateau and fibular head ( DPF) and provide parameters for tibial osteotomy in total knee replacement ( TKA) and the tibial prosthesis ( TP) design.

目的：测量胫骨内侧平台最低点至腓骨头（FH）尖端高度的差距（DPF），为全膝关节置换术（TKA）胫骨假体（TP）设计及胫骨平台截骨提供参数。

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The equation for total pressure head of pre-and post cutting blades was deduced by integration method when we know the performance parameters and the twisting law of original fan.

在已知原有风机的特性参数及扭曲规律的情况下，本文通过积分法推导出切割前后的风机全压间的关系式，从而可以根据所需的全压大小找到合适的切割量。

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With considering the effect of seepage, the position of the exit point and the phreatic surface, as well as the total head was calculated through iteration at first. The seepage forces were also determined according to the hydraulic gradient.

考虑渗流作用时，先采用有限元法计算坝体渗流场，通过迭代计算出稳定渗流的逸出点和浸润线位置，并根据水力梯度计算坝体所受的渗透力。

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Conclusion total hip arthroplasty in steroid-induced femoral head osteonecrosis has less value than in traumatic cases.

结论激素性股骨头缺血性坏死全髋关节置换术疗效较创伤性股骨头缺血性坏死差.

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Objective To compare the effects and indications of total hip replacement ( THR) and transplantation of vascularized bone graft in treating late ischemic necrosis of the femoral head.

目的比较全髋关节置换术（Total Hip Replacement，THR）和带血运骨瓣移位术治疗晚期股骨头缺血性坏死的疗效和适应证。

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One case developed osteonecrosis head requiring total hip arthroplasty 2 years after the index procedure.

仅有1例患者在术后2年发生了股骨头坏死,需要接受全髋关节置换.

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However, for bulb turbine, the discharge is large, the number of runner blades is less, the total area is small, cavitation coefficient is large, Intensity condition is bad, as a result, the application head is limited.

但由于贯流式水轮机转轮叶片数少，叶片总面积少，而过流量又较大，气蚀系数大，且叶片强度条件差，故其适用水头是有限的。

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Large head metal-on-metal cementless versus traditional total hip arthroplasty: One-year follow-up

大头金属-金属髋关节假体与普通全髋关节假体置换效果比较：1年随访

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Objective To assess the value of total hip arthroplasty in steroid-induced and traumatic femoral head osteonecrosis.

目的比较创伤性与激素性股骨头缺血性坏死全髋关节置换术的疗效.

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