Results 81 to 90 of about 12,917 (271)

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Single-staged transoral intra-lesional excision of aneurysmal bone cyst of axis (C2) vertebra and temporary stabilization of upper cervical spine in an adolescent: A case report [PDF]

, 2019
Aneurysmal bone cyst (ABC) infrequently occurs within the upper cervical vertebrae. Various therapeutic options have been reported in the literature. We would like to share our experience in managing a case of a 16-year-old girl diagnosed with ABC at the
Pingel, Andreas, Ab Wahid, Hazwan, Kandziora, Frank M., Mor Japar Khan, Ed Simor Khan, Sharifudin, Mohd Ariff, Ramos, J   +5 more
core  

Surgical management of giant cell tumor of axis vertebra: review of fourteen cases in literature with a case illustration

, 2017
Primary spinal giant cell tumor (PSGCT) considered as rare primary neoplasm, with predilection for subarticular location and commonly located at knee joint region, sacrum or distal radius, however, spinal involvent is uncommon and comparatively much ...
Guru Dutta Satyarthee, Satyarthee, Guru Dutta, Amit Agrawal, Agrawal, Amit, Luis Rafael Moscote-Salazar, Moscote-Salazar, Luis Rafael   +5 more
core   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

The Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández, José Miguel Carretero, Laura Rodríguez, Rebeca García‐González   +3 more
wiley   +1 more source

Global Workflow of a Comanipulation-Based Robotic System for Cervical Spine Surgery. [PDF]

Int J Med Robot
ABSTRACT Background Cervical arthrodesis requires precise pedicle screw placement to ensure safety and effectiveness. Traditional planning and execution are time‐consuming and prone to variability. Methods We developed a robot‐assisted system integrating three components: an AI‐based preoperative planning module, adapted from previous work, to generate
Koszulinski A, Sandoval J, Wu CT, Huang SH, Sahani SK, Wu SL, Essomba T, Vendeuvre T, Faure JP, Zeghloul S, Laribi MA.   +10 more
europepmc   +2 more sources

Accuracy and Repeatability of Computer Aided Cervical Vertebra Landmarking in Cephalogram

, 2012
The accuracy and repeatability of computer aided cervical vertebra landmarking (CACVL) were investigated in cephalogram. 120 adolescents (60 boys, 60 girls) aged from 9.1 to 17.2 years old were randomly selected. Twenty-seven landmarks from the second to
Lin, Jiuxiang, Xu, Xiangyang, Lan, Zhicong, Chen, Lili, Hu, Huaifei   +4 more
core   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

The Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham, Stephan N. F. Spiekman, Susannah C. R. Maidment, Paul Upchurch, Philip D. Mannion   +4 more
wiley   +1 more source

Morphology and Morphometry of the Deformed Cervical Vertebrae in a Mutant Knotty-Tail (knt/knt) Mouse [PDF]

, 1998
Mice with short and knotty tails arose as a spontaneous mutant in an ICR strain, and they have been named knotty-tail mouse(gene symbol; knt). They also have a minor anomaly of the cervical vertebrae, especially in the axis.
NARAMA, Isao, 北川, 浩, IMANAGA, Tomihiro, UEHARA, Masato, 奈良間, 功, NAKAJIMA, Hiroo, NISHIMURA, Masahiko, 松浦, 哲郎, 今川, 智敬, 上原, 正人, 西村, 正彦, 尾崎, 清和, MATSUURA, Tetsuro, OZAKI, Kiyokazu, 中島, 裕夫, KITAGAWA, Hiroshi   +15 more
core   +2 more sources

DIGITAL PROCESSING FOR FLUOROSCOPY-BASED INTERVERTEBRAL KINEMATIC ANALYSIS

, 2011
Spinal degenerations can lead to segmental instability that is regarded as a major cause of back pain and is often an important factor in deciding on surgical fusion or prosthesis implant.
Cerciello, Tommaso
core  

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

The Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield, Marco Camaiti, Lucy Roberts   +2 more
wiley   +1 more source