scholarly journals Evaluating the Reliability of Anatomic Landmarks in Safe Lumbar Puncture Using Magnetic Resonance Imaging: Does Sex Matter?

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Maryam Rahmani ◽  
Seyed Mehran Vaziri Bozorg ◽  
Ahmad Reza Ghasemi Esfe ◽  
Afsaneh Morteza ◽  
Omid Khalilzadeh ◽  
...  

Aim. To determine the level of the conus medullaris-Tuffier's line, and conus medullaris-Tuffier's line distance using imaging and evaluate their relation to age and gender.Methods. We performed a cross-sectional study of 189 adult participants, who underwent MR imaging of lumbosacral spine. Each vertebra was divided into 3 equal segments (upper, middle, and lower), and intervertebral disc space was also assumed as one segment. All segments from T12 upper segment to L5S1 intervertebral disc were numbered consecutively. The position of conus medullaris and Tuffier's line was determined by the vertebral segment or intervertebral disc space at the same level. The patients were stratified into high/low conus medullaris position (cutpoint: L1 middle segment) and short/long conus-Tuffier's distance (cutpoint: 14 segments).Results. Women with low conus were significantly more than men, in patients older than 50 years old (72.7% in females versus 55.3% in males; ), whereas there was not such a sexual dimorphism in patients younger than 50 years old. Similarly, short conus-Tuffier's distance was more frequent among women than men in patients older than 50 years old (59.7% in females versus 39.5% in males; ), whereas there was not any gender difference in patients younger than 50 years old. Conus-Tuffier's distance was negatively correlated with age (, ) in all studied population.Conclusion. Anatomical landmarks vary according to age and gender, with a lower end of conus medullaris in women, so clinicians should use more caution on the identification of the appropriate site for lumbar puncture, particularly in elderly women.

1988 ◽  
Vol 69 (1) ◽  
pp. 137-139 ◽  
Author(s):  
Jordan C. Grabel ◽  
Raphael Davis ◽  
Rosario Zappulla

✓ The case presented is of a patient with an intervertebral disc space cyst producing recurrent radicular pain following microdiscectomy in the lumbar region. Difficulties with the preoperative diagnosis of this and other recurrent radicular syndromes are discussed, and a review of the relevant literature is presented.


2007 ◽  
Vol 14 (3) ◽  
pp. 129 ◽  
Author(s):  
Eun-Su Moon ◽  
Nam-Hyun Kim ◽  
Jin-Oh Park ◽  
Si-Young Park ◽  
Ho-Joong Kim ◽  
...  

2000 ◽  
Vol 04 (03) ◽  
pp. 209-220 ◽  
Author(s):  
W. Peckett ◽  
P. Hardcastle ◽  
J. Sheppherd ◽  
C. Sridhar

Interbody fusion is a well-recognized technique to achieve spinal fusion. The advantage of using tricortical blocks as opposed to the dowel technique is that intervertebral disc height can be restored. Both techniques can be performed either by the anterior or posterior approach. The traditional tricortical block technique has advantages over using dowels as it is a more stable construct and can restore intervertebral disc height. However, autologous bone graft has an unpredictable behavior causing potential problems of disc space collapse, forward displacement of the graft and donor bone graft site morbidity. The Hartshill horseshoe was developed to overcome these autograft problems. It is an implant that is placed within the periphery of the intervertebral disc space where the vertebral end plate is strongest to resist compression forces. It has holes that allow screw fixation of the implant to bone to provide immediate stability and a central area for bone graft where the vertebral body is most vascular to allow incorporation of such a graft. Previous reports on the Hartshill horseshoe have used autograft (single tricortical graft). This prospective study reports the clinical and radiological results of 19 patients who underwent this procedure using xenograft 2½ to 3 years postoperative. The radiological results do not show any evidence of loosening of the screws or implant nor evidence of intervertebral disc space subsidence. It was not possible to assess the exact incidence of spinal fusion.


2006 ◽  
Vol 19 (01) ◽  
pp. 29-34 ◽  
Author(s):  
D. A. Allen ◽  
E. R. Schertel ◽  
M. D. Barnhart ◽  
E. R. Wilson ◽  
J. A. Lineberger ◽  
...  

SummaryThoracolumbar intervertebral disc disease is the most common cause of caudal paresis in dogs (1). Whilst the pathogenesis of the extrusion has been widely studied, treatment protocols and prognostic factors relating to outcome remain controversial. Recent studies have examined a multitude of factors relating to time to regain ambulation after decompressive surgery. Most intervertebral disc herniations occur in the thoracolumbar region, causing upper motor neuron signs in the rear limbs, which are thought to have a more favourable prognosis compared to the lower motor neuron signs created by herniation of an intervertebral disc in the caudal lumbar region. Due to the potential disruption of the lumbar intumescence, lower motor neuron signs have been reported as having a less favourable prognosis. The purpose of this study was to evaluate the intervertebral disc space as a prognostic factor relating to ambulatory outcome and time to ambulation after decompressive surgery. Hansen Type I intervertebral disc extrusions were studied in 308 non-ambulatory dogs. Preoperative and postoperative neurological status, corticosteroid use, signalment, intervertebral disc space, postoperative physical rehabilitation, previous hemilaminectomy surgery, disc fenestration, return to ambulation, and time to ambulation were reviewed.


2005 ◽  
Vol 20 (3) ◽  
pp. 351-384 ◽  
Author(s):  
NIGEL GOOSE

This article examines the relative incidence of poverty among the elderly in nineteenth-century Hertfordshire with special reference to gender. Both national and local sources are employed to highlight the particular difficulties experienced by the elderly, male poor under the New Poor Law, and the short and long term problems they faced as a result of seasonal unemployment and an overstocked labour market. For elderly women, the extent to which their poverty was relieved by employment in cottage industry, almshouse accommodation, the continuing receipt of out-relief and a higher incidence of family support are examined to provide an assessment of the manner in which poverty was gendered in the nineteenth century.


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