Results 71 to 80 of about 58,552 (260)

Three-dimensional simulation of the lumbar spine under lumbar spinal stenosis with different sizes of spinal canal

Partial Differential Equations in Applied Mathematics
In this paper, we investigate the effect of body weight on the lumbar spine with different spinal canal sizes when humans bend down by using the finite element method. Lumbar spinal stenosis is the narrowing of the spinal canal.
Din Prathumwan, Inthira Chaiya, Kamonchat Trachoo   +2 more
doaj   +1 more source

Endoscopic decompression for lumbar spinal canal stenosis: A technical note

Journal of Spinal Surgery, 2022
Laminectomy and fusion were surgical options to decompress neural structures and provide more space for the spinal cord in a stenosis patient with severe leg pain and progressive neurologic signs, such as numbness and weakness.
Kangtaek Lim, Jayesh Sardhara
doaj   +1 more source

First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina) [PDF]

, 2017
In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica.
Albino, Adriana Maria, Dozo, Maria Teresa, Trivino, Laura Natalia, Williams, Jorge Daniel   +3 more
core   +2 more sources

Idiopathic Intracranial Hypertension Is Characterized by a Distinct Proteomic Profile

Annals of Neurology, EarlyView.
Objectives The pathophysiology of idiopathic intracranial hypertension (IIH) is poorly understood and disease‐specific biomarkers are lacking. We aimed to shed light on IIH pathophysiology and identify disease‐specific biomarkers. Methods This prospective cross‐sectional cohort study included patients with new‐onset IIH and age‐, body mass index‐, and ...
Santosh D. Bhosale, Arkadiusz Nawrocki, Johanne J. Korsbæk, Nadja S. Hansen, Fabian Foettinger, Nik Krajnc, Mathias J. Norvig, Niclas L. Eriksen, Stefan Macher, Berthold Pemp, Connar S.J. Westgate, Christian B. Pedersen, Frantz R. Poulsen, Sune Munthe, Gabriel Bsteh, Martin R. Larsen, Rigmor H. Jensen, Dagmar Beier   +17 more
wiley   +1 more source

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

The Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano, Aline M. Ghilardi, Jonatan Kaluza, Agustín G. Martinelli   +3 more
wiley   +1 more source

Lumbar puncture for the generalist [PDF]

, 2004
The safe and successful performance of a lumbar puncture demands a working and yet specific knowledge as well as competency in performance. This review aims to aid understanding of the knowledge framework, the pitfalls and complications of lumbar ...
Abrahams, Peter H., Boon, J. M., Meiring, J. H., Welch, T.   +3 more
core   +2 more sources

Early Pliocene Varanus (Squamata, Varanidae) remains from Megalo Emvolon, Thessaloniki, Greece

The Anatomical Record, EarlyView.
The article describes new cranial and postcranial varanid material from Megalo Emvolon Lower Pliocene vertebrate fossil site near Thessaloniki. The fossils, likely representing a single individual, are referred to Varanus cf. marathonensis. Abstract This study describes new fossil varanid material from a recently discovered fossil spot (MVL site) at ...
Chara Drakopoulou, Georgios L. Georgalis, Georgios Lazaridis, Dimitris S. Kostopoulos   +3 more
wiley   +1 more source

Developmental Lumbar Spinal Canal Stenosis and Severity of Radiculopathy

The Annals of African Surgery, 2019
Background: The severity of radiculopathy is varied and may not concur with MRI findings. Large disc bulges may elicit fewer symptoms than smaller bulges. This was postulated to be due to the size of the canal.
Muthuuri Jamlick
doaj  

Spinal stenosis: A summary and review [PDF]

, 1993
A review of the etiology, clinical, radiological and laboratory presentation, differential diagnosis and management of spinal stenosis is presented.
Walker, B.F.
core   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source