Elbow Joint Implant Systems

2004 ◽  
pp. 125-136
Author(s):  
John Delvaux
Keyword(s):  
Elbow Joint ◽  
Joint Implant

Unsteady Pressure Distribution of a Flapping Wing Undergoing Root Flapping Motion with Elbow Joint at Different Reduced Frequencies

2017 ◽  
Vol 10 (3) ◽  
pp. 105
Author(s):  
Ahmad F. Razaami ◽  
M. K. H. M. Zorkipli ◽  
H. C. Lai ◽  
M. Z. Abdullah ◽  
Norizham Abdul Razak
Keyword(s):  
Pressure Distribution ◽  
Elbow Joint ◽  
Flapping Wing ◽  
Flapping Motion ◽  
Unsteady Pressure

scholarly journals Postoperative analgesia for arthrolysis of the elbow joint

1995 ◽  
Vol 75 (3) ◽  
pp. 372
Author(s):  
H P Frizelle ◽  
P J Zetlaoui
Keyword(s):  
Postoperative Analgesia ◽  
Elbow Joint

scholarly journals Vertical clinging and leaping induced evolutionary rate shifts in postcranial evolution of tamarins and marmosets (Primates, Callitrichidae)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Léo Botton-Divet ◽  
John A. Nyakatura
Keyword(s):  
Elbow Joint ◽  
Evolutionary Rate ◽  
Large Diameter ◽  
Morphological Diversity ◽  
Locomotor Behavior ◽  
Shape Descriptors ◽  
High Affinity ◽  
Associated Species ◽  
Future Work ◽  
Shape And Size

Abstract Background Callitrichids comprise a diverse group of platyrrhine monkeys that are present across South and Central America. Their secondarily evolved small size and pointed claws allow them to cling to vertical trunks of a large diameter. Within callitrichids, lineages with a high affinity for vertical supports often engage in trunk-to-trunk leaping. This vertical clinging and leaping (VCL) differs from horizontal leaping (HL) in terms of the functional demands imposed on the musculoskeletal system, all the more so as HL often occurs on small compliant terminal branches. We used quantified shape descriptors (3D geometric morphometrics) and phylogenetically-informed analyses to investigate the evolution of the shape and size of the humerus and femur, and how this variation reflects locomotor behavior within Callitrichidae. Results The humerus of VCL-associated species has a narrower trochlea compared with HL species. It is hypothesized that this contributes to greater elbow mobility. The wider trochlea in HL species appears to correspondingly provide greater stability to the elbow joint. The femur in VCL species has a smaller head and laterally-oriented distal condyles, possibly to reduce stresses during clinging. Similarly, the expanded lesser trochanters visible in VCL species provide a greater lever for the leg retractors and are thus also interpreted as an adaptation to clinging. Evolutionary rate shifts to faster shape and size changes of humerus and femur occurred in the Leontocebus clade when a shift to slower rates occurred in the Saguinus clade. Conclusions Based on the study of evolutionary rate shifts, the transition to VCL behavior within callitrichids (specifically the Leontocebus clade) appears to have been an opportunity for radiation, rather than a specialization that imposed constraints on morphological diversity. The study of the evolution of callitrichids suffers from a lack of comparative analyses of limb mechanics during trunk-to-trunk leaping, and future work in this direction would be of great interest.

scholarly journals Kinematics and Dynamics Analysis of a 3-DOF Upper-Limb Exoskeleton with an Internally Rotated Elbow Joint

2018 ◽  
Vol 8 (3) ◽  
pp. 464 ◽  
Author(s):  
Xin Wang ◽  
Qiuzhi Song ◽  
Xiaoguang Wang ◽  
Pengzhan Liu
Keyword(s):  
Upper Limb ◽  
Elbow Joint ◽  
Kinematics And Dynamics ◽  
Dynamics Analysis ◽  
Upper Limb Exoskeleton

scholarly journals Bilateral Congenital Humeroradial Synostostis Presenting with Bilateral Proximal Radius Fractures: A Case Report

2021 ◽  
pp. 29-32
Author(s):  
Elsiddig E. Mahmoud
Keyword(s):  
Case Report ◽  
Elbow Joint ◽  
Parental Education ◽  
Functional Disability ◽  
Congenital Abnormalities ◽  
Rare Condition ◽  
Radius Fractures ◽  
Proximal Radius ◽  
History Of ◽  
Uncommon Condition

Congenital bilateral humeroradial synostosis (HRS) is a rare condition. It is generally divided into 2 categories. In the first group, which is mainly sporadic, additional upper limb hypoplasia typically coexists. In the second group, which is classically familial, HRS is commonly an isolated upper extremity anomaly. HRS can lead to variable degrees of functional disability. The clinical case reported here illustrates a possibly avoidable presentation of this uncommon condition. In this case report, we present a 6-week-old male who presented with bilateral radius fractures. Radiography revealed congenital HRS at both elbows. No other associated congenital abnormalities were detected, and there was no family history of similar conditions in any first-degree relatives. In cases of congenital HRS, movement at the elbow joint is not possible. Parents who are unaware of this information might try to straighten their infant’s elbows, which in turn may result in fractures of the proximal radius. Hence, early diagnosis and proper parental education could prevent fractures as a sequela of HRS.

Fractures About the Elbow Joint

1933 ◽  
Vol 13 (5) ◽  
pp. 190-191
Author(s):  
Leo S. Lucas
Keyword(s):  
Elbow Joint
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