Lumbar lateral canal entrapment: Clinical, radiculographic and computed tomographic findings

Stockley, I; Getty, C.J.M.; Dixon, Adrian K.; Glaves, I.; Euinton, H. A.; Barrington, N.A.

doi:10.1016/s0009-9260(88)80012-6

Cited by 11 publications

(1 citation statement)

References 30 publications

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“…Degenerative lumbar spinal stenosis (LSS), the most common cause for lumbar spinal surgery in patients older than 65 years 1 , is defined as “buttock or lower extremity pain, which may occur with or without low back pain, associated with a diminished space available for neural and vascular elements in the lumbar spine, secondary to degenerative lumbar spine diseases” 2 , 3 . On the basis of anatomy, degenerative LSS can be classified as central stenosis (CS) and lateral stenosis (LS) 4 . Lumbar LS can easily be overlooked, especially when there is coexisting lumbar CS, and misdiagnosis of symptomatic LS may result in an unfavourable prognosis after surgical treatment 5 , 6 .…”

Section: Introductionmentioning

confidence: 99%

Diagnostic accuracy of standardised qualitative sensory test in the detection of lumbar lateral stenosis involving the L5 nerve root

Lin

Hsieh

Chen

et al. 2017

Sci Rep

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Misdiagnosis of symptomatic lumbar lateral stenosis (LS) may result in an unfavourable prognosis after surgical treatment. This study investigated the diagnostic accuracy of a standardised qualitative sensory test (SQST) in the detection of symptomatic LS in patients who had degenerative spinal disorders involving the L5 spinal nerve. We prospectively identified 75 patients, of which 60 met the inclusion criteria. Lateral recess stenosis at the L5 level or foraminal stenosis at the L5/S1 level on MRI was identified and graded by a neurosurgeon blinded to any clinical information. The reference criteria for the diagnosis of symptomatic LS were grade III LS on MRI and relevant clinical symptoms. Cutaneous sensory functions of the L5 dermatome on the symptomatic side were evaluated using the SQST. Each item of the SQST showed a satisfactory performance in the diagnosis of LS (sensitivity = 0.455–0.727, specificity = 0.868–1.0). A stepwise selection model identified low-strength von-Frey, high-strength von-Frey, and vibration as the most accurate predictors of symptomatic LS with an area under the receiver operating characteristic curve of 0.9563 (95% confidence interval = 0.9003–1.0). In combination with MRI, the SQST is a promising diagnostic tool for detecting symptomatic LS involving L5 nerve roots.

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Section: Introductionmentioning

confidence: 99%

Diagnostic accuracy of standardised qualitative sensory test in the detection of lumbar lateral stenosis involving the L5 nerve root

Lin

Hsieh

Chen

et al. 2017

Sci Rep

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Posteriorly situated retroperitoneal colon: A study using CT and MRI

et al. 1993

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In a patient with symptoms attributable to lumbar spine disease, computed tomography (CT) demonstrated the descending colon lying in an exceptionally posteromedial position. The colon, within the retroperitoneal fat, passed between the psoas major and quadratus lumborum muscles, thereby abutting the normal left L4 ventral ramus lateral to the L5 pedicle. Although it remains debatable whether this curious anatomical arrangement was responsible for this patient's symptoms, the case prompted us to see how often the colon was situated so posteromedially. Among 33 consecutive patients whose abdominal CT images were analyzed, this close anatomical relationship was seen in only one patient; it was not seen in any of 50 randomly selected patients undergoing magnetic resonance imaging (MRI) of the lumbar spine. As judged by CT measurements, the average position of the most posteromedial portion of the descending colon lies 5 mm anterolateral to a plane joining the anterolateral margins of the psoas major, quadratus lumborum, and iliacus muscles and 54 mm from the ventral ramus. 0 1993 Wiley-Liss, Inc.

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The Spine

Antoun¹

1990

Clinical Medicine and the Nervous System

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Lumbar lateral canal entrapment: Clinical, radiculographic and computed tomographic findings

Cited by 11 publications

References 30 publications

Diagnostic accuracy of standardised qualitative sensory test in the detection of lumbar lateral stenosis involving the L5 nerve root

Diagnostic accuracy of standardised qualitative sensory test in the detection of lumbar lateral stenosis involving the L5 nerve root

Posteriorly situated retroperitoneal colon: A study using CT and MRI

The Spine

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