• L5 Vertebra
    • Richard Joseph Herzog
    • Richard Joseph Herzog: Influence Statistics

      Richard Joseph Herzog

      Richard Joseph Herzog

      Hospital for Special Surgery, New York, NY. | Department of Radiology, Hospital for Special Surgery, New York, NY ‡‡ | Hospital for Special Surgery, 535 E. 70th St, New York, ...

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      Richard Joseph Herzog:Expert Impact

      Concepts for whichRichard Joseph Herzoghas direct influence:L5 vertebra,Provocative discography,Spinal stenosis,Lumbar spine,Lumbar plexus,Disc degeneration,Psoas muscle,Lumbar vertebrae.

      Richard Joseph Herzog:KOL impact

      Concepts related to the work of other authors for whichfor which Richard Joseph Herzog has influence:Disc degeneration,Lumbar spine,Low pain,Spinal stenosis,Magnetic resonance imaging,Surgery syndrome,Mri findings.

      KOL Resume for Richard Joseph Herzog


      Hospital for Special Surgery, New York, NY.


      Department of Radiology, Hospital for Special Surgery, New York, NY ‡‡


      Hospital for Special Surgery, 535 E. 70th St, New York, NY 10021, USA


      Department of Radiology, Hospital for Special Surgery, 535 East 70th St, New York, NY 10021, USA


      Spinal Imaging, Hospital for Special Surgery, New York, USA


      Hospital for Special Surgery, Department of Radiology and Imaging, 535 East 70th Street, 10021, New York, NY, USA


      Department of Radiology and Imaging, Spine and Scoliosis Service, Hospital for Special Surgery, NY


      Hospital for Special Surgery Department of Radiology and Imaging, New York, NY, USA


      Hospital for Special Surgery, New York, NY‡‡Disclosure: nothing to disclose


      From the *Stanford University School of Medicine, Stanford, CA; †Department of Public Health Sciences, John A. Burns School of Medicine, University of Hawaii at Mānoa, Honolulu, HI; ‡NYU Hospital for Joint Diseases, New York, NY; §Johns Hopkins University, Baltimore, MD; ¶Hospital for Special Surgery, New York, NY.

      New York, NY, USA


      From the Departments of *Medicine, and †Community and Family Medicine, Dartmouth Medical School, Lebanon, New Hampshire; ‡Department of Orthopaedic Surgery, Stanford School of Medicine, Palo Alto, California; §Department of Radiology, John's Hopkins Medical School, Baltimore, Maryland; ¶National Orthopedic Imaging Associates, Greenbrae, California; ∥Department of Radiology, Harvard Medical School, Boston, Massachusetts; **Department of Orthopaedics, Dartmouth Medical School, Lebanon, New Hampshire; and ††Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York.


      From the Departments of *Orthopaedic Surgery, †Rehabilitation Medicine, and ‡Radiology and Imaging, Hospital for Special Surgery, New York, NY.


      Department of Radiology and Imaging, Hospital for Special Surgery, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, USA


      Division of Teleradiology, Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA.


      Department of Orthopaedic Surgery, State University of New York at Buffalo, Buffalo, New York Texas Back Institute, Institute for Spine and Biomedical Research, Plano, Texas, Jacksonville, Florida, Department of Radiology, University of Pennsylvania Medical Center, 3400 Spruce Street, Philadelphia, Pennsylvania.

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      Sample of concepts for which Richard Joseph Herzog is among the top experts in the world.
      Concept World rank
      counts false #1
      interpretive findings #1
      study marked variability #1
      lumbar spine patient #1
      patient short period #1
      interpretive findings patient #1
      radiologist examination #1
      accelerated disc degeneration #1
      average interpretive #1
      examinations interpretive #1
      patient radiological diagnosis #1
      variables degeneration #1
      study examinations finding #1
      variability interpretive findings #1
      10 study examinations #1
      patient mri examination #1
      study examinations #1
      examinations 10 #1
      examination authors #1
      mri examination radiologist #1
      errors authors #1
      10 mri centers #1
      diskogenic low #1
      reported interpretive #1
      rra lstv #2
      reliable identifier #2
      adjacent cephalad segments #2
      transitional level #2
      iliolumbar ligament identifier #2
      tangent iliac #2
      10 mri #2
      lstv imaging studies #2
      pacs search degeneration #2
      numbering vertebrae #2
      correct numbering #2
      wronglevel treatment #2
      transitional level degeneration #2
      control subjects l5s1 #2
      origin l5 #2
      identifier l5 vertebra #2
      subjects lumbosacral #2
      degeneration transitional #2
      evolution degeneration #2
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      Prominent publications by Richard Joseph Herzog

      KOL-Index: 11673

      STUDY DESIGN: A reliability assessment of standardized magnetic resonance imaging (MRI) interpretations and measurements.

      OBJECTIVE: To determine the intra- and inter-reader reliability of MRI features of lumbar spinal stenosis (SPS), including severity of central, subarticular, and foraminal stenoses, grading of nerve root impingement, and measurements of cross-sectional area of the spinal canal and thecal sac.

      SUMMARY OF BACKGROUND DATA: MRI is commonly used to assess patients with ...

      Known for Spinal Stenosis | Magnetic Resonance | Imaging Features | Nerve Root | Reliability Mri
      KOL-Index: 11514

      BACKGROUND AND OBJECTIVES: A feared complication of spinal or epidural anesthesia is the development of epidural or spinal hematoma with subsequent neural element compression. Most available data are derived from the obstetric literature. Little is known about the frequency of hematoma occurrence among patients undergoing orthopedic joint arthroplasty, who are usually elderly and experience significant comorbidities. We sought to study the incidence of clinically significant lesions ...

      Known for Neuraxial Anesthesia | Replacement Hip Arthroplasty | Spinal Epidural | 95 Confidence Interval | Total Knee
      KOL-Index: 11033

      Lateral transpsoas interbody fusion (LTIF) is a minimally invasive technique that permits interbody fusion utilizing cages placed via a direct lateral retroperitoneal approach. We sought to describe the locations of relevant neurovascular structures based on MRI with respect to this novel surgical approach. We retrospectively reviewed consecutive lumbosacral spine MRI scans in 43 skeletally mature adults. MRI scans were independently reviewed by two readers to identify the location of ...

      Known for Lumbar Plexus | Psoas Muscle | Interbody Fusion | Neurovascular Structures | Surgical Approach
      KOL-Index: 10992

      STUDY DESIGN: Assessment of the reliability of standardized magnetic resonance imaging (MRI) interpretations and measurements.

      OBJECTIVE: To determine the intra- and inter-reader reliability of MRI parameters relevant to patients with intervertebral disc herniation (IDH), including disc morphology classification, degree of thecal sac compromise, grading of nerve root impingement, and measurements of cross-sectional area of the spinal canal, thecal sac, and disc fragment.

      SUMMARY OF ...

      Known for Magnetic Resonance | Lumbar Disc Herniation | Nerve Root | Spinal Canal | Spine Patient
      KOL-Index: 10357

      PURPOSE: To characterize the inter- and intraobserver variability of qualitative, non-disk contour degenerative findings of the lumbar spine at magnetic resonance (MR) imaging.

      MATERIALS AND METHODS: The case accrual method used to perform this institutional review board-approved, HIPAA-compliant retrospective study was the random selection of 111 interpretable MR examination cases of subjects from the Spine Patient Outcomes Research Trial. The subjects were aged 18-87 years (mean, 53 ...

      Known for Lumbar Spine | Disk Degeneration | Facet Arthropathy | Intraobserver Agreement | Magnetic Resonance
      KOL-Index: 9850

      STUDY DESIGN: Prospective, match-cohort study of disc degeneration progression over 10 years with and without baseline discography. Objectives. To compare progression of common degenerative findings between lumbar discs injected 10 years earlier with those same disc levels in matched subjects not exposed to discography. Summary of Background Data. Experimental disc puncture in animal and in vivo studies have demonstrated accelerated disc degeneration. Whether intradiscal diagnostic or ...

      Known for Lumbar Disc | 10 Years | Prize Winner | Background Data | Vivo Studies
      KOL-Index: 8630

      BACKGROUND CONTEXT: The relation between specific types of lumbosacral transitional vertebra and the degree of degeneration at and adjacent to the transitional level is unclear. It is also unknown whether the adjacent cephalad segment to a transitional vertebra is prone to greater degeneration than a normal L5-S1 level.

      PURPOSE: The purpose of this study was to evaluate the relation between specific lumbosacral transitional vertebra subtypes according to the Castellvi classification, and ...

      Known for Lumbosacral Transitional | Disc Degeneration | L5 S1 | Castellvi Classification | Retrospective Review
      KOL-Index: 7881

      BACKGROUND CONTEXT: Provocative discography, an invasive diagnostic procedure involving disc puncture with pressurization, is a test for presumptive discogenic pain in the lumbar spine. The clinical validity of this test is unproven. Data from multiple animal studies confirm that disc puncture causes early disc degeneration. A recent study identified radiographic disc degeneration on magnetic resonance imaging (MRI) performed 10 years later in human subjects exposed to provocative ...

      Known for Provocative Discography | Intervertebral Disc | Matched Cohort | Magnetic Resonance | Pain Lumbar
      KOL-Index: 7568

      ObjectivesThe association of disc degeneration (DD) and vertebral endplate degeneration (EPD) is still not well understood. This study aimed to find segmental predictive risk factors for DD and EPD and to illuminate associations of the disc, endplate and bone marrow changes in the process of degeneration.MethodsAfter institutional review board approval, 450 lumbar levels, followed up with MRI for at least 4 years, were retrospectively graded for DD according to Pfirrmann (PFG), for EPD ...

      Known for Intervertebral Disc | Bone Marrow | Modic Mc | Endplate Score | Independent Risk Factor
      KOL-Index: 7242

      BACKGROUND CONTEXT: Different types of lumbosacral transitional vertebra (LSTV) are classified based on the relationship of the transverse process of the last lumbar vertebra to the sacrum. The Ferguson view (30° angled anteroposterior [AP] radiograph) is supposed to have a sufficient interreader reliability in classification of LSTV, but is not routinely available. Standard AP radiographs and magnetic resonance imaging (MRI) are often available, but their reliability in detection and ...

      Known for Lstv Type | Magnetic Resonance | Lumbosacral Transitional | Standard Radiographs | Retrospective Studies
      KOL-Index: 7240

      STUDY DESIGN: This is a case report of a cervical epidural abscess presenting with neurologic deficits after cervical epidural steroid injection.

      OBJECTIVE: To describe the presentation, diagnosis, treatment, and outcome of a rare complication of cervical epidural steroid injection.

      SUMMARY OF BACKGROUND DATA: Cervical epidural steroid injections are a commonly used modality in the treatment of cervical spine disease. Serious complications from the procedure are rare. There is only one ...

      Known for Cervical Epidural | Steroid Injection | Neurologic Deficits | Background Data | Decompressive Laminectomy
      KOL-Index: 6723

      STUDY DESIGN: A retrospective cohort design.

      OBJECTIVE: To determine whether baseline magnetic resonance imaging findings, including central/foraminal stenosis, Modic change, disc morphology, facet arthropathy, disc degeneration, nerve root impingement, and thecal sac compression, are associated with differential surgical treatment effect.

      SUMMARY OF BACKGROUND DATA: Intervertebral disc herniation remains the most common source of lumbar radiculopathy treated either with discectomy or ...

      Known for Intervertebral Disc | Resonance Imaging | Patients Surgery | Modic Type | Oswestry Disability
      KOL-Index: 6596

      PurposeEvolution and progression of disc and endplate bone marrow degeneration of the lumbar spine are thought to be multifactorial, yet, their influence and interactions are not understood. The aim of this study was to find association of potential predictors of evolution of degeneration of the lumbar spine.

      MethodsPatients (n = 90) who underwent two lumbar magnetic resonance imaging (MRI) exams with an interval of at least 4 years and without any spinal surgery were included into the ...

      Known for Disc Degeneration | Lumbar Spine | 4 Years | Resonance Imaging | Case Control
      KOL-Index: 5947

      ObjectiveSufficiently sized studies to determine the value of the iliolumbar ligament (ILL) as an identifier of the L5 vertebra in cases of a lumbosacral transitional vertebra (LSTV) are lacking.MethodsSeventy-one of 770 patients with LSTV (case group) and 62 of 611 subjects without LSTV with confirmed L5 level were included. Two independent radiologists using coronal MR images documented the level(s) of origin of the ILL. The interobserver agreement was analysed using weighted ...

      Known for L5 Vertebra | Iliolumbar Ligament | Lumbosacral Transitional | Interobserver Agreement | Subjects Lstv
      KOL-Index: 5246

      BACKGROUND CONTEXT: In today's health-care climate, magnetic resonance imaging (MRI) is often perceived as a commodity-a service where there are no meaningful differences in quality and thus an area in which patients can be advised to select a provider based on price and convenience alone. If this prevailing view is correct, then a patient should expect to receive the same radiological diagnosis regardless of which imaging center he or she visits, or which radiologist reviews the ...

      Known for Mri Examinations | Interpretive Errors | Diagnostic Error | Lumbar Spine | Low Pain

      Key People For L5 Vertebra

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      Hospital for Special Surgery, New York, NY. | Department of Radiology, Hospital for Special Surgery, New York, NY ‡‡ | Hospital for Special Surgery, 535 E. 70th St, New York, NY 10021, USA | Spreemo Quality Research Institute, 88 Pine St 11th Floor,

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