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Lumbar intradiscal pressure - LIBRIS
Google Scholar Objective: The goal of this study was to measure intradiscal pressure to complement earlier data from Nachemson with dynamic and long-term measurements over a broad range of activities. Methods : Under sterile surgical conditions, a pressure transducer with a diameter of 1.5 mm was implanted in the nucleus pulposus of a nondegenerated L4-L5 disc of a male volunteer 45-years-old and weighing 70 kg. We conducted intradiscal pressure mea-surements with one volunteer performing various activities normally found in daily life, sports, and spinal therapy. Objectives. The goal of this study was to measure intradiscal pressure to complement earlier data from Nachemson with dynamic and long-term measurements over a broad range of activities.
Nachemson, Alf, 1931- (författare) Publicerad: Copenhagen, 1960 Tillverkad: Uppsala : A & W Engelska 104 s. Serie: Acta orthopaedica Scandinavica.Supplementum, 0300-8827 ; 43 2008-08-01 Disc pressure measurements in para- and tetraplegic patients. A study of of mobilization and exercise in para- and tetraplegic patients. Hein-Sørensen O, Elfström G, Nachemson A. The intradiscal lumbar pressure was measured in 10 patients with para- or tetraplegia and in one normal subject. Even the famous Alf Nachemson studies on disc pressures showed increased Hg (on discs, which I equate with increased loading on the spine) with flexed postures, esp.
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2007-02-14 · In the mid-1950s Alf Nachemson was given an assistant research position under Professor Carl Hirsch at Uppsala University Hospital. To study the loading conditions of the human spine he developed a method for intradiscal pressure measurements. The most important in vivo data are from pioneering intradiscal pressure measurements recorded by Nachemson during the 1960s. Since that time, there have been few data to corroborate or dispute High intradiscal pressures (ten to fifteen kilograms per square centimeter) were found in the normal discs with the subject in the sitting position.
Sagittal halsryggställning fem år efter operation med fusion
Cenh-um för monary flow-volume and pressure-flow re- lationship during 6: 32-35,1977. Nachemson A. Lumbar intradiscal pressure:.
6-8 The relation- ship between applied load per unit of area (p) and nuclear pressure (Pn) has been established. Nachemson A. (1974) Lumbar intradiscal pressure Results from in vitro and in vivo experiments with some clinical implications. In: Hartmann F. (eds) Biopolymere und Biomechanik von Bindegewebssystemen. The most reliable results seemed to come from the intradiscal pressure measurements from studies by Nachemson, 1966. A new similar study by Wilke et al. (1999) complemented the present study and confirmed some of the earlier data, although it contradicted others.
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A study of common movements, maneuvers by late Alf Nachemson, by inter-discipline migrations. A 3rd Special Issue of the Journal of Biomechanics including 32 original articles is now available online.
0 1960 by ALF NACHEMSON, Sweden
Nachemson A. (1974) Lumbar intradiscal pressure Results from in vitro and in vivo experiments with some clinical implications. In: Hartmann F. (eds) Biopolymere und Biomechanik von Bindegewebssystemen. SUMMARY A method by which the pressure in the nucleus pulposus of the lumbar disc can be measured in vivo showed that, for the sitting position at least, these pressures are rather high-between 17-7 kg.
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A study of of mobilization and exercise in para- and tetraplegic patients. Hein-Sørensen O, Elfström G, Nachemson A. The intradiscal lumbar pressure was measured in 10 patients with para- or tetraplegia and in one normal subject. In Vivo Measurements of Intradiscal Pressure: Discometry, a Method for the Determination of Pressure in the Lower Lumbar Discs Volume 51 of Technical report, University of California Biomechanics Laboratory: Authors: Alf Louis Nachemson, James Marshall Morris: Contributor: United States.
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Lumbar intradiscal pressure - LIBRIS
Scand. 12, 185 (1963). Google Scholar Abstract. By measurement of intradiscal pressure in vitro, the hydrostatic properties of the nucleus pulposus of normal lumbar intervertebral disc were proven.
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Medicine. The Journal of bone and joint surgery. American…. 1 June 1995. In a prospective study by the Scoliosis Research Society, 286 girls who had adolescent idiopathic scoliosis, a thoracic or thoracolumbar curve of 25 to 35 degrees, and a mean age of twelve years and….
Acta Orthop. Scand .