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Stephen Ondra

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Frank L Acosta; Heiko Koller; Tyler R Koski; Jamal McClendon; Oliver Meier; Chris J Neal; Stephen L Ondra; Brian A O'Shaughnessy; Christopher P Ames
Deformity surgery. Response.
Jamal McClendon; Mark Morasch; Ryan J Halpin; Tyler R Koski; Brian A Oʼshaughnessy; Timothy R Smith; Patrick A Sugrue; Stephen L Ondra
Comprehensive assessment of prophylactic preoperative inferior vena cava filters for major spinal reconstruction in adults.
Jamal McClendon; Chris J Neal; Frank L Acosta; Tyler R Koski; Brian A O'Shaughnessy; Patrick A Sugrue; Stephen L Ondra
Techniques for operative correction of proximal junctional kyphosis of the upper thoracic spine.

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All Publications

2013: Frank L Acosta; Heiko Koller; Tyler R Koski; Jamal McClendon; Oliver Meier; Chris J Neal; Stephen L Ondra; Brian A O'Shaughnessy; Christopher P Ames
Deformity surgery. Response.
Journal of neurosurgery. Spine 2013;18(4):415-6.
2012: Jamal McClendon; Mark Morasch; Ryan J Halpin; Tyler R Koski; Brian A Oʼshaughnessy; Timothy R Smith; Patrick A Sugrue; Stephen L Ondra
Comprehensive assessment of prophylactic preoperative inferior vena cava filters for major spinal reconstruction in adults.
Spine 2012;37(13):1122-9.
2012: Jamal McClendon; Chris J Neal; Frank L Acosta; Tyler R Koski; Brian A O'Shaughnessy; Patrick A Sugrue; Stephen L Ondra
Techniques for operative correction of proximal junctional kyphosis of the upper thoracic spine.
Spine 2012;37(4):292-303.
2011: Frank L Acosta; Christopher P Ames; Heiko Koller; Tyler R Koski; Jamal McClendon; Oliver Meier; Chris J Neal; Brian A O'Shaughnessy; Stephen L Ondra
Morbidity and mortality after spinal deformity surgery in patients 75 years and older: complications and predictive factors.
Journal of neurosurgery. Spine 2011;15(6):667-74.
2011: Chris J Neal; Frank L Acosta; Ryan Halpin; Tyler R Koski; Jamal McClendon; Stephen L Ondra
Predicting ideal spinopelvic balance in adult spinal deformity.
Journal of neurosurgery. Spine 2011;15(1):82-91.
2011: Justin S Smith; Sigurd H Berven; Keith H Bridwell; Steven D Glassman; Christopher L Hamill; William C Horton; Stephen L Ondra; Charles Sansur; Frank J Schwab; Christopher I Shaffrey
Risk-benefit assessment of surgery for adult scoliosis: an analysis based on patient age.
Spine 2011;36(10):817-24.
2010: Ryan J Halpin; Patrick A Sugrue; Robert W Gould; Peter G Kallas; Michael F Schafer; Stephen L Ondra; Tyler R Koski
Standardizing care for high-risk patients in spine surgery: the Northwestern high-risk spine protocol.
Spine 2010;35(25):2232-8.
2010: Daniel M Sciubba; Rory J Petteys; Mark B Dekutoski; Charles G Fisher; Michael G Fehlings; Stephen L Ondra; Laurence D Rhines; Ziya L Gokaslan
Diagnosis and management of metastatic spine disease. A review.
Journal of neurosurgery. Spine 2010;13(1):94-108.
2010: PATRICK HSIEH; Christopher J Stapleton; Pavel Moldavskiy; Tyler R Koski; Stephen L Ondra; Ziya L Gokaslan; Charles Kuntz
Posterior vertebral column subtraction osteotomy for the treatment of tethered cord syndrome: review of the literature and clinical outcomes of all cases reported to date.
Neurosurgical focus 2010;29(1):E6.
2010: Steven D Glassman; Leah Y Carreon; Christopher I Shaffrey; David W Polly; Stephen L Ondra; Sigurd Berven; Keith H Bridwell
The costs and benefits of nonoperative management for adult scoliosis.
Spine 2010;35(5):578-82.
2009: Brian A O'Shaughnessy; Timothy R Kuklo; PATRICK HSIEH; Benson P Yang; Tyler R Koski; Stephen L Ondra
Thoracic pedicle subtraction osteotomy for fixed sagittal spinal deformity.
Spine 2009;34(26):2893-9.
2009: PATRICK HSIEH; Stephen L Ondra; Andrew W Grande; Brian A O'Shaughnessy; Karin Bierbrauer; Kerry R Crone; Ryan J Halpin; Ian Suk; Tyler R Koski; Ziya L Gokaslan; Charles Kuntz
Posterior vertebral column subtraction osteotomy: a novel surgical approach for the treatment of multiple recurrences of tethered cord syndrome.
Journal of neurosurgery. Spine 2009;10(4):278-86.
2009: Stefan Mindea; Christopher S Eddleman; Ziad A Hage; H Hunt Batjer; Stephen L Ondra; Bernard R Bendok
Endovascular embolization of a recurrent cervical giant cell neoplasm using N-butyl 2-cyanoacrylate.
Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2009;16(3):452-4.
2009: Patrick Chan; Stefano Boriani; Daryl R Fourney; Roberto Biagini; Mark B Dekutoski; Michael G Fehlings; Timothy C Ryken; Ziya L Gokaslan; Frank D Vrionis; James S Harrop; Meic H Schmidt; Luis R Vialle; Peter C Gerszten; Laurence D Rhines; Stephen L Ondra; Stuart R Pratt; Charles G Fisher
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.
Spine 2009;34(4):384-91.
2009: Patrick A Sugrue; Brian A O'Shaughnessy; Fadi Nasr; Tyler R Koski; Stephen L Ondra
Abdominal complications following kyphosis correction in ankylosing spondylitis.
Journal of neurosurgery. Spine 2009;10(2):154-9.
2008: Charles Kuntz; Christopher I Shaffrey; Stephen L Ondra; Atiq A Durrani; Praveen V Mummaneni; Linda S Levin; David B Pettigrew
Spinal deformity: a new classification derived from neutral upright spinal alignment measurements in asymptomatic juvenile, adolescent, adult, and geriatric individuals.
Neurosurgery 2008;63(3 Suppl):25-39.
2008: Praveen V Mummaneni; Sanjay S Dhall; Stephen L Ondra; Valli P Mummaneni; Sigurd Berven
Pedicle subtraction osteotomy.
Neurosurgery 2008;63(3 Suppl):171-6.
2008: Brian A O'Shaughnessy; John C Liu; PATRICK HSIEH; Tyler R Koski; Aruna Ganju; Stephen L Ondra
Surgical treatment of fixed cervical kyphosis with myelopathy.
Spine 2008;33(7):771-8.
2008: Brian A O'Shaughnessy; Timothy R Kuklo; Stephen L Ondra
Surgical treatment of vertebral osteomyelitis with recombinant human bone morphogenetic protein-2.
Spine 2008;33(5):E132-9.
2008: Benson P Yang; Larry A Chen; Stephen L Ondra
A novel mathematical model of the sagittal spine: application to pedicle subtraction osteotomy for correction of fixed sagittal deformity.
The spine journal : official journal of the North American Spine Society 2008;8(2):359-66.
2008: Brian A O'Shaughnessy; Tyler R Koski; Stephen L Ondra
Reversal of neurologic deterioration after vertebral column resection by spinal cord untethering and duraplasty.
Spine 2008;33(2):E50-4.
2008: PATRICK HSIEH; Tyler R Koski; Daniel M Sciubba; David Moller; Brian A O'Shaughnessy; Khan W Li; Ziya L Gokaslan; Stephen L Ondra; Richard G Fessler; John C Liu
Maximizing the potential of minimally invasive spine surgery in complex spinal disorders.
Neurosurgical focus 2008;25(2):E19.
2008: Robert H Thiele; Ziad A Hage; Daniel L Surdell; Stephen L Ondra; H Hunt Batjer; Bernard R Bendok
Spontaneous spinal epidural hematoma of unknown etiology: case report and literature review.
Neurocritical care 2008;9(2):242-6.
2007: Brian A O'Shaughnessy; Gregory A Dumanian; John C Liu; Aruna Ganju; Stephen L Ondra
Pedicled omental flaps as an adjunct in the closure of complex spinal wounds.
Spine 2007;32(26):3074-80.
2007: Frank Schwab; Virginie Lafage; Jean-Pierre Farcy; Keith H Bridwell; Steven D Glassman; Stephen L Ondra; Tom Lowe; Michael Shainline
Surgical rates and operative outcome analysis in thoracolumbar and lumbar major adult scoliosis: application of the new adult deformity classification.
Spine 2007;32(24):2723-30.
2007: PATRICK HSIEH; Tyler R Koski; Brian A O'Shaughnessy; Patrick Sugrue; Sean A Salehi; Stephen L Ondra; John C Liu
Anterior lumbar interbody fusion in comparison with transforaminal lumbar interbody fusion: implications for the restoration of foraminal height, local disc angle, lumbar lordosis, and sagittal balance.
Journal of neurosurgery. Spine 2007;7(4):379-86.
2007: Devjani Saha; Steven A Gard; Stefania Fatone; Stephen L Ondra
The effect of trunk-flexed postures on balance and metabolic energy expenditure during standing.
Spine 2007;32(15):1605-11.
2007: Brian A O'Shaughnessy; Stephen L Ondra
Measuring, preserving, and restoring sagittal spinal balance.
Neurosurgery clinics of North America 2007;18(2):347-56.
2007: PATRICK HSIEH; Stephen L Ondra; Robert J Wienecke; Brian A O'Shaughnessy; Tyler R Koski
A novel approach to sagittal balance restoration following iatrogenic sacral fracture and resulting sacral kyphotic deformity. Technical note.
Journal of neurosurgery. Spine 2007;6(4):368-72.
2007: Benson P Yang; Carina W Yang; Stephen L Ondra
A novel mathematical model of the sagittal spine.
Spine 2007;32(4):466-70.
2007: Charles Kuntz; Linda S Levin; Stephen L Ondra; Christopher I Shaffrey; Chad J Morgan
Neutral upright sagittal spinal alignment from the occiput to the pelvis in asymptomatic adults: a review and resynthesis of the literature.
Journal of neurosurgery. Spine 2007;6(2):104-12.
2007: Steven D Glassman; Frank J Schwab; Keith H Bridwell; Stephen L Ondra; Sigurd Berven; Lawrence G Lenke
The selection of operative versus nonoperative treatment in patients with adult scoliosis.
Spine 2007;32(1):93-7.
2006: Stephen L Ondra; Shaden Marzouk; Tyler R Koski; Fernando Silva; Sean A Salehi
Mathematical calculation of pedicle subtraction osteotomy size to allow precision correction of fixed sagittal deformity.
Spine 2006;31(25):E973-9.
2006: Benson P Yang; Stephen L Ondra
Unknown case: part II. Soft tissue herniation through a thoracic laminectomy defect.
Spine 2006;31(24):2871-2.
2006: Regina J Konz; Stefania Fatone; Rebecca L Stine; Aruna Ganju; Steven A Gard; Stephen L Ondra
A kinematic model to assess spinal motion during walking.
Spine 2006;31(24):E898-906.
2006: Benson P Yang; Stephen L Ondra
A method for calculating the exact angle required during pedicle subtraction osteotomy for fixed sagittal deformity: comparison with the trigonometric method.
Neurosurgery 2006;59(4 Suppl 2):ONS458-63; discussion ONS463.
2006: Brian A O'Shaughnessy; Stephen L Ondra; Aruna Ganju; Hakim K Said; Julius W Few; John C Liu
Anterior thoracic spine reconstruction using a titanium mesh cage and pedicled rib flap.
Spine 2006;31(16):1820-7.
2006: Stephen L Ondra; Shaden Marzouk
Revision deformity surgery.
Neurosurgery clinics of North America 2006;17(3):365-75, viii.
2006: Benson P Yang; Stephen L Ondra; Larry A Chen; Hee Soo Jung; Tyler R Koski; Sean A Salehi
Clinical and radiographic outcomes of thoracic and lumbar pedicle subtraction osteotomy for fixed sagittal imbalance.
Journal of neurosurgery. Spine 2006;5(1):9-17.
2006: Stephen L Ondra; Shaden Marzouk; Aruna Ganju; Thomas Morrison; Tyler R Koski
Safety and efficacy of C2 pedicle screws placed with anatomic and lateral C-arm guidance.
Spine 2006;31(9):E263-7.
2006: Caleb R Lippman; Sean A Salehi; John C Liu; Stephen L Ondra
Salvage technique of posterior iliac bolt placement in long-segment spinal constructs with a previous posterior iliac crest harvest: technical note.
Neurosurgery 2006;58(1 Suppl):ONS-E178; discussion ONS-E178.
2005: Michael J Lee; Stephen L Ondra; Stefan Mindea; Neil A Fine; Gregory A Dumanian
Indications and rationale for use of vascularized fibula bone flaps in cervical spine arthrodeses.
Plastic and reconstructive surgery 2005;116(1):1-7.
2005: Luis Leon; Heron Rodriguez; Rabih G Tawk; Stephen L Ondra; Nicos Labropoulos; Mark D Morasch
The prophylactic use of inferior vena cava filters in patients undergoing high-risk spinal surgery.
Annals of vascular surgery 2005;19(3):442-7.
2004: PATRICK HSIEH; Robert J Wienecke; Brian A O'Shaughnessy; Tyler R Koski; Stephen L Ondra
Surgical strategies for vertebral osteomyelitis and epidural abscess.
Neurosurgical focus 2004;17(6):E4.
2004: Michael K Rosner; Timothy R Kuklo; Rabih G Tawk; Ross R Moquin; Stephen L Ondra
Prophylactic placement of an inferior vena cava filter in high-risk patients undergoing spinal reconstruction.
Neurosurgical focus 2004;17(4):E6.
2004: Vincent J Miele; Bernard R Bendok; Stephen Bloomfield; Stephen L Ondra; Julian E Bailes
Ventriculoperitoneal shunt dysfunction in adults secondary to conditions causing a transient increase in intra-abdominal pressure: report of three cases.
Neurosurgery 2004;55(2):434.
2004: Sean A Salehi; Tyler R Koski; Stephen L Ondra
Spinal cord compression in beta-thalassemia: case report and review of the literature.
Spinal cord 2004;42(2):117-23.
2004: Sean A Salehi; Rabih G Tawk; Aruna Ganju; Frank La Marca; John C Liu; Stephen L Ondra
Transforaminal lumbar interbody fusion: surgical technique and results in 24 patients.
Neurosurgery 2004;54(2):368-74; discussion 374.
2004: Stephen L Ondra
Biomechanics of spinal deformity correction.
Clinical neurosurgery 2004;51():30-5.
2004: Russell R Reid; José Dutra; David B Conley; Stephen L Ondra; Gregory A Dumanian
Improved repair of cervical esophageal fistula complicating anterior spinal fusion: free omental flap compared with pectoralis major flap. Report of four cases.
Journal of neurosurgery 2004;100(1 Suppl Spine):66-70.
2003: Stephen L Ondra; Shaden Marzouk
Revision strategies for lumbar pseudarthrosis.
Neurosurgical focus 2003;15(3):E9.
2003: Gregory C Wiggins; Stephen L Ondra; Christopher I Shaffrey
Management of iatrogenic flat-back syndrome.
Neurosurgical focus 2003;15(3):E8.
2003: Harel Deutsch; Praveen V Mummaneni; Regis W Haid; Gerald E Rodts; Stephen L Ondra
Benign sacral tumors.
Neurosurgical focus 2003;15(2):E14.
2003: Stefan Mindea; Sean A Salehi; Aruna Ganju; Michael K Rosner; Brian A O'Shaughnessy; Allan Jorge; Stephen L Ondra
Lumbosacropelvic junction reconstruction resulting in early ambulation for patients with lumbosacral neoplasms or osteomyelitis.
Neurosurgical focus 2003;15(2):E6.
2003: Gregory A Dumanian; Stephen L Ondra; John Liu; Michael F Schafer; Jerome D Chao
Muscle flap salvage of spine wounds with soft tissue defects or infection.
Spine 2003;28(11):1203-11.
2003: Michael K Rosner; David W Polly; Timothy R Kuklo; Stephen L Ondra
Thoracic pedicle screw fixation for spinal deformity.
Neurosurgical focus 2003;14(1):e7.
2003: Stephen L Ondra
Spinal deformity: the role of the neurosurgeon.
Clinical neurosurgery 2003;50():228-38.
2002: John C Liu; Stephen L Ondra; Peter Angelos; Aruna Ganju; Misty L Landers
Is laparoscopic anterior lumbar interbody fusion a useful minimally invasive procedure?
Neurosurgery 2002;51(5 Suppl):S155-8.
2002: Rabih G Tawk; Stephen L Ondra; Allan M Jorge; Tom Morrison; Aruna Ganju
Hypersegmentation, Klippel-Feil syndrome, and hemivertebra in a scoliotic patient.
Journal of the American College of Surgeons 2002;195(4):570-1.
2002: Sean A Salehi; Randall R McCafferty; Dean Karahalios; Stephen L Ondra
Neural function preservation and early mobilization after resection of metastatic sacral tumors and lumbosacropelvic junction reconstruction. Report of three cases.
Journal of neurosurgery 2002;97(1 Suppl):88-93.
2000: Sean A Salehi; Stephen L Ondra
Use of internal fiducial markers in frameless stereotactic navigational systems during spinal surgery: technical note.
Neurosurgery 2000;47(6):1460-2.
2000: Julius W Few; Jeffrey R Marcus; M J Lee; Stephen L Ondra; Gregory A Dumanian
Treatment of hostile midline back wounds: an extreme approach.
Plastic and reconstructive surgery 2000;105(7):2448-51.