نتایج جستجو برای: 90° elbow

تعداد نتایج: 224510  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
ali sarrami foroushani mohsen nasr esfahany

computational fluid dynamics (cfd) simulations of gas-solid flow through a positive low-pressure pneumatic conveyor were performed using eulerian-eulerian framework. pressure drop in pneumatic conveying pipelines, creation and destruction of plugs along the horizontal and vertical pipes, effect of 90° elbows and u-bends on cross-section concentrations, and rope formation and dispersion were num...

2013
Taewook Kang Youngjoon Seo Jaehoon Park Eunseok Dong Byungdo Seo Dongwook Han

[Purpose] This research investigated the effect of angular variation of flexion of the elbow joint on the muscle activation of elbow flexor muscles. [Subjects] The research subjects were 24 male college students with a dominant right hand who had no surgical or neurological disorders and gave their prior written consent to participation with full knowledge of the method and purpose of this stud...

Journal: :The Journal of hand surgery 2011
Jaison James Levi G Sutton Frederick W Werner Niladri Basu Mari A Allison Andrew K Palmer

PURPOSE The purpose of this study is to provide a thorough understanding of the anatomy of the cubital tunnel and to outline specific anatomical parameters of the cubital tunnel retinaculum (CuTR) that might aid in the management of ulnar nerve problems. The hypotheses of this study are (1) that the nerve elongates with elbow flexion and (2) that the cross-sectional area of the cubital tunnel i...

Journal: :Journal of shoulder and elbow surgery 2007
Fang Lin Navjot Kohli Sam Perlmutter Dohyung Lim Gordon W Nuber Mohsen Makhsous

Repetitive valgus stress of the elbow can result in excessive strain or rupture of the native medial ulnar collateral ligament (MUCL). The flexor-pronator mass (FPM) may be particularly important for elbow valgus stability in overhead-throwing athletes. The aim of this study was to identify the relative contribution of each muscle of the FPM--that is, the flexor carpi ulnaris (FCU), flexor digi...

Journal: :The Journal of hand surgery 2009
Eric Fu Guoan Li J Sebastiaan Souer Santiago Lozano-Calderon James H Herndon Jesse B Jupiter Neal C Chen

PURPOSE Previous in vivo and in vitro studies of forearm supination-pronation suggest that distal radioulnar joint kinematics may be affected by elbow flexion. The primary hypotheses tested by this study were that, in vivo, ulnar variance changes with elbow flexion and forearm rotation, and the arc of forearm rotation changes in relationship to elbow flexion. METHODS Changes in radioulnar kin...

2012
Kenji Yasui Teruhisa Mihata Atsushi Takeda Chisato Watanabe Mitsuo Kinoshita

BACKGROUND A screening of ulnar collateral ligament insufficiency is required for overhead throwers, since secondary pathologic changes result from an increased elbow valgus laxity. We developed a new manual method for assessing elbow valgus laxity and investigated the reliability of this method and its correlation with ultrasonographic assessment. METHODS We defined elbow valgus laxity as th...

Journal: :Transactions of the Architectural Institute of Japan 1975

Journal: :Orthopedics 2013
Yuanming Ouyang Yi Liao Zhongtang Liu Cunyi Fan

Joint stiffness is a common complication of elbow trauma. Treating elbow stiffness is challenging, especially in patients with severe elbow stiffness with distal humeral nonunion. To improve treatment outcomes, the authors applied a hinged external fixator after performing open reduction and internal fixation and evaluated the clinical outcome. Between 2005 and 2011, eleven patients with elbow ...

Journal: :Orthopedics 2012
Yuanming Ouyang Yongping Wang Fengfeng Li Cunyi Fan

Elbow stiffness is a well-recognized complication following elbow trauma, but little information is available regarding the surgical treatment of elbow stiffness in children and adolescents. This article presents the results of open arthrolysis with twin incisions and a hinged external fixator to treat severe elbow contracture in children and adolescents. Twenty-one patients (mean age, 14.9 yea...

2018
Joong-Bae Seo Sung-Hyun Yoon Joon-Yeul Lee Jun-Kyom Kim Jae-Sung Yoo

Background A variety of treatment options suggest that the optimal treatment strategy for lateral elbow tendinopathy (LET) is not known, and further research is needed to discover the most effective treatment for LET. The purpose of the present study was to verify the most effective position of eccentric stretching for the extensor carpi radialis brevis (ECRB) in vivo using ultrasonic shear wav...

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