Professor in Neurological Surgery, Northwestern University Medical School

Neurosurgery

Stephen Ondra, MD is an expert in the field of Neurosurgery. He attended Rush Medical College. He received awards:"Fellow (FACS)". Dr. Stephen Ondra is also published. He has 84 publications published. The lastest publication: "Nonneoplastic pineal cysts: a clinicopathologic study of twenty-one cases.'

Publications

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• The Implementation and Efficacy of the Northwestern High Risk Spine Protocol

• The Impact of Body Mass Index on Hospital Stay and Complications After Spinal Fusion.
• Spinal cord compression in beta-thalassemia: case report and review of the literature.
• Combined transmandibular-zygomatic approach and infratemporal craniotomy for intracranial skull base tumors.
• Cryptococcal skull infection: a case report with review of the literature.
• Intratentorial lipomas with Meckel's cave and cerebellopontine angle extension.
• Heparin-associated thrombocytopenia in the neurosurgical patient.
• Surgical excision of a cavernous hemangioma of the rostral brain stem: case report.
• Nonneoplastic pineal cysts: a clinicopathologic study of twenty-one cases.
• The removal of a transdural pedicle screw placed for thoracolumbar spine fracture.
• A method for radiographic evaluation of pedicle screw violation of the vertebral endplate. Technique.
• Use of internal fiducial markers in frameless stereotactic navigational systems during spinal surgery: technical note.
• A critical appraisal of the reporting of the National Acute Spinal Cord Injury Studies (II and III) of methylprednisolone in acute spinal cord injury.
• Cervical spondylotic myelopathy: treatment with posterior decompression and Luque rectangle bone fusion.
• The natural history of symptomatic arteriovenous malformations of the brain: a 24-year follow-up assessment.
• Symptomatic pineal cyst: case report.
• Treatment of hostile midline back wounds: an extreme approach.
• Caution in performing epidural injections in patients on several antiplatelet drugs.
• Long-term treatment of malignant gliomas with intramuscularly administered polyinosinic-polycytidylic acid stabilized with polylysine and carboxymethylcellulose: an op...
• Magnetic resonance imaging of the lumbar spine. A comparison with computed tomography and myelography.
• Improved repair of cervical esophageal fistula complicating anterior spinal fusion: free omental flap compared with pectoralis major flap. Report of four cases.
• Transforaminal lumbar interbody fusion: surgical technique and results in 24 patients.
• Spinal deformity: the role of the neurosurgeon.
• Muscle flap salvage of spine wounds with soft tissue defects or infection.
• Hypersegmentation, Klippel-Feil syndrome, and hemivertebra in a scoliotic patient.
• Is laparoscopic anterior lumbar interbody fusion a useful minimally invasive procedure?
• Neural function preservation and early mobilization after resection of metastatic sacral tumors and lumbosacropelvic junction reconstruction. Report of three cases.
• Morbidity and mortality after spinal deformity surgery in patients 75 years and older: complications and predictive factors.
• Predicting ideal spinopelvic balance in adult spinal deformity.
• The Scoliosis Research Society Health-Related Quality of Life (SRS-30) age-gender normative data: an analysis of 1346 adult subjects unaffected by scoliosis.
• Standardizing care for high-risk patients in spine surgery: the Northwestern high-risk spine protocol.
• Changes in radiographic and clinical outcomes with primary treatment adult spinal deformity surgeries from two years to three- to five-years follow-up.
• Risk-benefit assessment of surgery for adult scoliosis: an analysis based on patient age.
• Diagnosis and management of metastatic spine disease.
• Posterior vertebral column subtraction osteotomy for the treatment of tethered cord syndrome: review of the literature and clinical outcomes of all cases reported to d...
• The costs and benefits of nonoperative management for adult scoliosis.
• Thoracic pedicle subtraction osteotomy for fixed sagittal spinal deformity.
• Introduction to focus issue in spine oncology: the synthesis of evidence and expert opinion for best practice recommendation.
• Operative versus nonoperative treatment of leg pain in adults with scoliosis: a retrospective review of a prospective multicenter database with two-year follow-up.
• Improvement of back pain with operative and nonoperative treatment in adults with scoliosis.
• Posterior vertebral column subtraction osteotomy: a novel surgical approach for the treatment of multiple recurrences of tethered cord syndrome.
• Abdominal complications following kyphosis correction in ankylosing spondylitis.
• An assessment of the reliability of the Enneking and Weinstein-Boriani-Biagini classifications for staging of primary spinal tumors by the Spine Oncology Study Group.
• Endovascular embolization of a recurrent cervical giant cell neoplasm using N-butyl 2-cyanoacrylate.
• Spinal deformity: a new classification derived from neutral upright spinal alignment measurements in asymptomatic juvenile, adolescent, adult, and geriatric individuals.
• Pedicle subtraction osteotomy.
• Age-gender matched comparison of SRS instrument scores between adult deformity and normal adults: are all SRS domains disease specific?
• Maximizing the potential of minimally invasive spine surgery in complex spinal disorders.
• Standing balance and sagittal plane spinal deformity: analysis of spinopelvic and gravity line parameters.
• Rationale behind the current state-of-the-art treatment of scoliosis (in the pedicle screw era).
• Surgical treatment of fixed cervical kyphosis with myelopathy.
• Spontaneous spinal epidural hematoma of unknown etiology: case report and literature review.
• Surgical treatment of vertebral osteomyelitis with recombinant human bone morphogenetic protein-2.
• Reversal of neurologic deterioration after vertebral column resection by spinal cord untethering and duraplasty.
• Pedicled omental flaps as an adjunct in the closure of complex spinal wounds.
• Surgical rates and operative outcome analysis in thoracolumbar and lumbar major adult scoliosis: application of the new adult deformity classification.
• Anterior lumbar interbody fusion in comparison with transforaminal lumbar interbody fusion: implications for the restoration of foraminal height, local disc angle, lum...
• A novel mathematical model of the sagittal spine: application to pedicle subtraction osteotomy for correction of fixed sagittal deformity.
• The effect of trunk-flexed postures on balance and metabolic energy expenditure during standing.
• Measuring, preserving, and restoring sagittal spinal balance.
• A novel approach to sagittal balance restoration following iatrogenic sacral fracture and resulting sacral kyphotic deformity. Technical note.
• Neutral upright sagittal spinal alignment from the occiput to the pelvis in asymptomatic adults: a review and resynthesis of the literature.
• A novel mathematical model of the sagittal spine.
• The selection of operative versus nonoperative treatment in patients with adult scoliosis.
• Mathematical calculation of pedicle subtraction osteotomy size to allow precision correction of fixed sagittal deformity.
• Unknown case: part II. Soft tissue herniation through a thoracic laminectomy defect.
• A kinematic model to assess spinal motion during walking.
• A method for calculating the exact angle required during pedicle subtraction osteotomy for fixed sagittal deformity: comparison with the trigonometric method.
• Revision deformity surgery.
• Clinical and radiographic outcomes of thoracic and lumbar pedicle subtraction osteotomy for fixed sagittal imbalance.
• Anterior thoracic spine reconstruction using a titanium mesh cage and pedicled rib flap.
• Safety and efficacy of C2 pedicle screws placed with anatomic and lateral C-arm guidance.
• Salvage technique of posterior iliac bolt placement in long-segment spinal constructs with a previous posterior iliac crest harvest: technical note.
• The prophylactic use of inferior vena cava filters in patients undergoing high-risk spinal surgery.
• Thoracic pedicle screw fixation for spinal deformity.
• Surgical strategies for vertebral osteomyelitis and epidural abscess.
• Prophylactic placement of an inferior vena cava filter in high-risk patients undergoing spinal reconstruction.
• Biomechanics of spinal deformity correction.
• Benign sacral tumors.
• Lumbosacropelvic junction reconstruction resulting in early ambulation for patients with lumbosacral neoplasms or osteomyelitis.
• Revision strategies for lumbar pseudarthrosis.
• Management of iatrogenic flat-back syndrome.
• Ventriculoperitoneal shunt dysfunction in adults secondary to conditions causing a transient increase in intra-abdominal pressure: report of three cases.

Schools

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• Rush Medical College Of Rush University

• Walter Reed Army Med Center

Doctors Specialties

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• Neurosurgery

Accepted Insurances

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Awards

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• Fellow (FACS)

Education

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• Rush Medical College

Hospital

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• Northwestern Memorial Hospital

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