股骨

Patients with osteoporosis have larger stress shielding at greater trochanter and calcar and larger stress concentration at stem tip zone .

骨质疏松者，股骨大转子与股骨矩区域的应力遮挡较大，而在杆端区域的应力集中明显。

Collared device for reducing stress shielding of calcar should be recommended for osteoporosis patients.

因此，骨质正常者应该选用非骨水泥假体，以减少大转子与股骨矩区域的应力遮挡；而骨质疏松者最好选用有肩托的假体，以减少股骨矩处的应力遮挡作用。

Non-cemented prosthesis should be better for normal bone quality patients because they could reduce stress shielding at greater trochanter and calcar.

骨质疏松者，股骨大转子与股骨矩区域的应力遮挡较大，而在杆端区域的应力集中明显。

Results Harris hip scores improved from 53 to 95,thigh pain was 3.1%.Radiographic analysis revealed no evidence of osteolysis below the level of the calcar and the greater trochanteric region.Only 1 femoral stem was revised at 7 years postoperatively.

结果 所有患者平均Harris评分从58分提高到93分，大腿痛的发生率为3.1%。X线检查分析结果显示在股骨距以下水平没有发现明显的骨吸收现象，仅有1例在术后1年需要行股骨柄翻修。

The rate of excellent and good functional recovery of hip was 94.0%. Postoperative internal-fixation-related complications occurred in 31 cases, including hip varus in 14 cases who had posterior intertrochanteric fragments, delayed union of fracture in 12 cases who had fractured calcar and lesser trochanter and massive dissection of soft tissues, and cutting-out of lag screws in five cases, three of whom had to receive prosthetic replacement.

术后髋关节功能恢复良好率达94.0%。215例患者中31例出现内固定相关术后并发症，其中髋内翻14例，主要发生于股骨转子内后方存在明显骨折碎裂的患者；骨折延迟愈合12例，为骨折累及股骨距及小转子，术中做软组织广泛剥离、骨折复位固定的患者；内固定物股骨头颈内切割并螺钉穿入髋关节腔5例，其中3例再行人工关节置换，关节功能Harris评分为82分。

The aged patients with intertrochanteric fracture can get good result through caput femoris replacement, and rebuild septum bronchiale is of great significance.

人工股骨头置换治疗高龄股骨粗隆间骨折的临床效果良好，稳定近端、重建及修复股骨距是手术关键。

Walker and Robertson found proximal medial bone strains to be 65% of normal with a collarless press-fit stem.

Walker和Robertson发现植入无领紧压配合式股骨柄时股骨近端内侧骨质的应变为正常情况的65％。

Results: 1. A collarless press fit canine femoral stem of CFRPSF composite (elastic modulus was 40 GPa, containing carbon fiber 30%) using HA (50%) and PSF (50%) composite for surface coating was made. Directions of carbon fiber in the stem were similar to the arrangement of trabeculae of proximal femur.

实验结果：1。用弹性模量为40GPa，碳纤维含量为30％的聚砜复合材料，制造出纤维排列方向模拟股骨上段骨小梁走行，表面涂层为羟基磷灰石50％/聚砜50％混合物的压配型狗人工髋关节股骨柄假体。2。

Methods: femur plate fixation of femoral condyle and 22 cases of supracondylar and intercondylar fractures of the clinical data of patients were retrospectively analyzed.

对股骨髁支持钢板内固定治疗股骨髁上和髁间骨折22例病例的临床资料进行回顾性分析。

Study of the changes of mandibular condyle position before and after fixed bridges in heavy abrison and TMD patients

方法在40侧成人下肢标本上，解剖观测股骨外侧髁和股骨下段前面的血管来源、走行、分支和吻合情况。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。