The posterior ligamentous complex inflammatory syndrome: spread of fluid and inflammation in the retrodural space of Okada

Lehman, Vance T.; Murthy, Naveen S.; Diehn, Felix E.; Verdoorn, Jared T.; Maus, Timothy P.

doi:10.1016/j.crad.2014.12.009

Cited by 23 publications

(29 citation statements)

References 20 publications

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“…This space has become known as the "retrodural space of Okada" and may be identified on imaging during spinal procedures in which contrast is injected or in cases in which infection spreads along this space. 2,8 Spread of contrast in the retrodural space of Okada specifically during lumbar ILESI, resulting in intrafacet injection, has been previously documented in the literature. 3 In a postmortem anatomic study, Xu et al 9 showed that in some patients, the facet joint capsule extends not only dorsal to the ligamentum flavum but also into the ligamentum flavum itself.…”

Section: Discussionmentioning

confidence: 90%

“…1 It is thought to be due to unintentional needle entry into the retrodural space of Okada, a space located dorsal to the ligamentum flavum that allows communication between the bilateral facet joints and interspinous bursa. 2,3 Needle placement into this space causes a false-positive loss of resistance, which can mimic the loss of resistance normally felt during entrance into the epidural space.…”

mentioning

confidence: 99%

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Inadvertent Intrafacet Injection during Lumbar Interlaminar Epidural Steroid Injection: A Comparison of CT Fluoroscopic and Conventional Fluoroscopic Guidance

Kranz

Joshi²,

Roy

et al. 2016

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE: Inadvertent intrafacet injection can occur during interlaminar epidural steroid injection, resulting in a false-positive loss of resistance and nontarget injection of medication. The purpose of this investigation was to compare the observed rates of this phenomenon during lumbar interlaminar epidural steroid injection performed by using conventional fluoroscopic and CT fluoroscopic guidance.

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Section: Discussionmentioning

confidence: 90%

mentioning

confidence: 99%

Inadvertent Intrafacet Injection during Lumbar Interlaminar Epidural Steroid Injection: A Comparison of CT Fluoroscopic and Conventional Fluoroscopic Guidance

Kranz

Joshi²,

Roy

et al. 2016

AJNR Am J Neuroradiol

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“…This can lead to communication between facet joints. This has been described and a depiction of this is seen in Figure . Magnetic resonance imaging often demonstrates heterogeneous signal abnormality with contrast enhancement in this space and several communicating compartments of the posterior ligamentous complex .…”

mentioning

confidence: 99%

“…Magnetic resonance imaging often demonstrates heterogeneous signal abnormality with contrast enhancement in this space and several communicating compartments of the posterior ligamentous complex . This includes Baastrup disease, where the spinous processes contact, producing inflammation of the interspinous ligament that may result in adventitial bursae formation …”

mentioning

confidence: 99%

The Retrodural Space of Okada and Unusual Contrast Flow

Jiao

Bailey

Beckworth

et al. 2019

PM&R

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“…Repetitive stress or cumulative low-level trauma can lead to in lammation and joint capsule distension [9] or in lammatory reactions in the retrodural space of Okada [14].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Resonance Imaging Can Detect Symptomatic Patients with Facet Joint Pain. A Retrospective Analysis

Freund¹,

Weber²,

Meier³

et al. 2017

J Clin Med Exp Images

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Background: Low back pain has recently been reported as the leading cause for disability worldwide. The diagnostic value of imaging has been estimated low. Led by own positive experience, however, we hypothesized that MRI can detect signs of facet joint pain.Methods: 15 patients and 15 controls were retrospectively assessed by two readers. They compared deidentifi ed T2 weighted lumbar spine MRI scans. Facet joint size, shape, angle, joint space signal and degeneration were rated. Pain aetiology was proven with the diagnostic gold standard of medial branch blocks.Results: Facet joint angles and joint diameters were signifi cantly larger in symptomatic patients, who also showed signifi cantly higher grades of degeneration but no difference in joint space distances or shape or signal intensity.The readers were able to correctly identify symptomatic patients with good interrater reliability (kappa 0.5, sensitivity and specifi city 0.87-0.93), positive (LR+= 6.7-7.2) and negative likelihood ratios (LR-=0.15). Conclusions:Contrary to recent publications, we could demonstrate differences between asymptomatic and symptomatic subjects showing the latter to have larger joints and more signs of degeneration.One can conclude from the strong LR+ and LR-values that MRI is a useful investigation to rule in or rule out facet pain.

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The posterior ligamentous complex inflammatory syndrome: spread of fluid and inflammation in the retrodural space of Okada

Cited by 23 publications

References 20 publications

Inadvertent Intrafacet Injection during Lumbar Interlaminar Epidural Steroid Injection: A Comparison of CT Fluoroscopic and Conventional Fluoroscopic Guidance

Inadvertent Intrafacet Injection during Lumbar Interlaminar Epidural Steroid Injection: A Comparison of CT Fluoroscopic and Conventional Fluoroscopic Guidance

The Retrodural Space of Okada and Unusual Contrast Flow

Magnetic Resonance Imaging Can Detect Symptomatic Patients with Facet Joint Pain. A Retrospective Analysis

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