Results 261 to 270 of about 45,743 (302)
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The prevalence of transitional vertebrae in the lumbar spine
The Spine Journal, 2011Lumbosacral transitional vertebrae (LSTVs) are a congenital vertebral anomaly of the L5-S1 junction in the spine. This alteration may contribute to incorrect identification of a vertebral segment, leading to wrong-level spine surgery and poor correlation with clinical symptoms.
Alexios, Apazidis +3 more
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Benign fibrous histiocytoma of the lumbar vertebrae
Skeletal Radiology, 2008Benign fibrous histiocytoma is an extremely rare spinal tumor with ten reported cases in the literature. Benign fibrous histiocytoma constitutes a diagnostic challenge because it shares common clinical symptoms, radiological characteristics, and histological features with other benign lesions involving the spine.
Bahtiyar, Demiralp +5 more
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Hypercalcemia and Collapse of First Lumbar Vertebra
JAMA, 1963Dr. W. Harris: This month and next month we would like to present two contrasting cases of lumbar vertebral fractures in postmenopausal women. A 59-yr-old white female was admitted to the Phillips House with a diagnosis of hyperparathyroidism with impending acute parathyroid poisoning. The patient had been in good health until 11 moprior to admission,
O E, AUFRANC, W N, JONES, W H, HARRIS
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Fatigue fracture of human lumbar vertebrae
Clinical Biomechanics, 1987Fatigue fracture of human lumbar vertebrae under cyclic axial compressive load is investigated between 1 and 5000 load cycles and for load magnitudes between 30 and 70% of the ultimate compressive strength of human lumbar vertebrae. In addition, it is shown that the ultimate compressive strength of human lumbar vertebrae can be predicted from ...
P, Brinckmann +3 more
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The Cervical and Lumbar Vertebrae — An Anthropometric Model
Engineering in Medicine, 1984An anthropometric model for human vertebrae in the mid-sagital plane is described, using parameters which were measured from lateral X-rays of the cervical and lumbar regions in normal, healthy men. The data was processed statistically and results are presented. The findings reported are new in the literature.
M, Nissan, I, Gilad
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Burst Fractures of the Fifth Lumbar Vertebra
Spine, 1993Eleven patients with burst fractures of the fifth lumbar vertebra were reviewed. The results of nonoperative treatment were compared with that of immediate surgery and stabilization with pedicle screw fixation. Five patients were treated nonoperatively and six patients underwent pedicle screw instrumentation and spinal fusion.
C A, Mick +4 more
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Congenital absence of a pedicle of a lumbar vertebra
The British Journal of Radiology, 1973There have been several reports of congenital absence of a pedicle of a cervical vertebra (Hadley, 1946; Oestreich and Young, 1969; Steinbach, Boldrey and Sooy, 1952; Wilson and Norrel, 1966). Bardsley and Hanelin (1971) have described two cases of congenital hypoplasia of a lumbar vertebral pedicle.
W J, Norman, C, Johnson
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Anatomical measurements of porcine lumbar vertebrae
Clinical Biomechanics, 2007Porcine spines are frequently used as an alternative to human specimens for spinal implant testing. Morphometric data of the normal porcine lumbar vertebrae are lacking at this time, yet these data are crucial for application to such studies. This study provides such a database and highlights the differences between porcine and human specimens.All the ...
R, Dath +3 more
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Functional morphology of indrid lumbar vertebrae
American Journal of Physical Anthropology, 1995AbstractIndrids are primarily vertical clingers and leapers but also engage to various extents in climbing, suspensory postures, bimanual movement, bipedal hopping, and quadrupedalism. It has been demonstrated that these behaviors are well reflected in the appendicular anatomy of these primates, while indrid vertebral anatomy has received relatively ...
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Fatigue fracture of human lumbar vertebrae
Clinical Biomechanics, 1988Fatigue fracture of human lumbar vertebrae under cyclic axial compressive load has been investigated in vitro for load magnitudes between 20% and 70% of the ultimate compressive strength and cycle numbers between 1 and 5000. In addition, the dependence of the ultimate compressive strength of lumbar vertebrae on trabecular bone density and geometric ...
P, Brinckmann, M, Biggemann, D, Hilweg
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