Assessment of Magnetic Resonance Imaging in the Diagnosis of Lumbar Spine Foraminal Stenosis—A Surgeon's Perspective

Attias, Naftaly; Hayman, Anne; Hipp, John A.; Noble, Philip S.; Esses, Stephen I.

doi:10.1097/01.bsd.0000203942.81050.c8

Cited by 39 publications

(34 citation statements)

References 13 publications

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“…The incidence of lumbar foraminal stenosis is about 10% (8%-11%) in the symptomatic group. 1 MR imaging is considered an appropriate tool for studying spine pathologies, especially spinal stenosis. Wildermuth et al 2 introduced a partially quantitative classification system for grading lumbar spinal foraminal stenosis on the basis of MR imaging findings.…”

mentioning

confidence: 99%

Clinical Correlation of a New MR Imaging Method for Assessing Lumbar Foraminal Stenosis

Park

Kim²,

Lee³

et al. 2012

AJNR Am J Neuroradiol

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mentioning

confidence: 99%

Clinical Correlation of a New MR Imaging Method for Assessing Lumbar Foraminal Stenosis

Park

Kim²,

Lee³

et al. 2012

AJNR Am J Neuroradiol

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“…Direct contact of nerve root with neighboring bony spur, intervertebral disc, or ligaments and loss of intervening fat tissue may be the highly suggestive finding of symptomatic foraminal stenosis. However, as Attias et al 1) suggested, there is poor intraobserver agreement in the diagnosis foraminal stenosis with MRI. We carefully observed the sagittal and axial scans of MRI to exclude other causes of radicular pain for correct diagnosis.…”

Section: Discussionmentioning

confidence: 96%

Unilateral Augmented Pedicle Screw Fixation for Foraminal Stenosis

Kim

Jin

Chung

et al. 2009

J Korean Neurosurg Soc

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Objective : The purpose of this study is to evaluate the effectiveness of unilateral decompression and pedicle screw fixation for the unilateral symptomatic foraminal stenosis. Methods : The study group comprises consecutive 16 patients who underwent unilateral decompression and bone cement augmented pedicle screw fixation from May 2003 to January 2006. The patients were evaluated by visual analog scale (VAS) for pain and the scoring system of the Japanese Orthopedic Association (JOA) for low back pain. The result of surgery was also evaluated with McNab's classification. Excellent or good outcome was considered as successful. The patients were followed at postoperative 1 month, 3 month, 6 month, and 1 year with standing AP and lateral films. Results :The average VAS and JOA score of the 16 patients were 7.8 (range, 6-9) and 5.8 (range, 3 -10) before surgery and 2.2 (range, 0 -5) and 12.3 (range, 9 -15) at the time of last follow up. Both VAS and JOA score improved significantly after the surgery (p < 0.05, t-test). All patients improved after the operation and no revision surgery was required. No metal failure or pseudoarthrosis was observed during the follow-up. The success rate was 87.5%. Conclusion : Our data suggest that unilateral decompression and pedicle screw fixation for the unilateral symptomatic foraminal stenosis is an effect method for obtaining satisfactory clinical outcome. Its possible advantage is shorter operation time and reduced surgical extent. We believe that the reduced stiffness of unilateral fixation was compensated by pedicle screw augmentation and interbody fusion.

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“…The major shortcoming of our study was the method of measurement of foraminal or nerve root size. Actually, the foramen and nerve root are oval because of obliquity of the canal, but they have been measured based on rectangular area [2,17]. However, we measured them as an oval area with the formula ¼ 9 pi 9 height 9 width.…”

Section: Discussionmentioning

confidence: 99%

“…We (HNM) made measurements as described by Attias et al [2]. The vertical dimension (height) was measured as the distance between the inferior margin of the upper pedicle and the superior margin of the lower pedicle for the foramen dimensions (Fig.…”

Section: Methodsmentioning

confidence: 99%

Lumbar Nerve Root Occupancy in the Foramen in Achondroplasia

Modi

Suh

Song

et al. 2008

Clinical Orthopaedics &Amp; Related Research

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Lumbar stenosis is common in patients with achondroplasia because of narrowing of the neural canal. However, it is unclear what causes stenosis, narrowing of the central canal or foramina. We performed a morphometric analysis of the lumbar nerve roots and intervertebral foramen in 17 patients (170 nerve roots and foramina) with achondroplasia (eight symptomatic, nine asymptomatic) and compared the data with that from 20 (200 nerve roots and foramina) asymptomatic patients without achondroplasia presenting with low back pain without neurologic symptoms. The measurements were made on left and right parasagittal MRI scans of the lumbar spine. The foramen area and root area were reduced at all levels from L1 to L5 between the patients with achondroplasia

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Assessment of Magnetic Resonance Imaging in the Diagnosis of Lumbar Spine Foraminal Stenosis—A Surgeon's Perspective

Cited by 39 publications

References 13 publications

Clinical Correlation of a New MR Imaging Method for Assessing Lumbar Foraminal Stenosis

Clinical Correlation of a New MR Imaging Method for Assessing Lumbar Foraminal Stenosis

Unilateral Augmented Pedicle Screw Fixation for Foraminal Stenosis

Lumbar Nerve Root Occupancy in the Foramen in Achondroplasia

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