Benny Dahl

Benny Dahl

Clinical Professor

Member of:

  • Orthopaedic Surgery


  1. 2024
  2. Published

    Postoperative lordosis distribution index, patient reported outcome measures, and revision surgery following transforaminal lumbar interbody fusion

    Schack, A., Bari, T. J., Gehrchen, M., Dahl, Benny & jmn329, jmn329, 2024, In: World Neurosurgery: X. 21, 7 p., 100251.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. 2023
  4. Published

    Comparison of baseline characteristics and postoperative complications in neuromuscular, syndromic and congenital scoliosis

    Deveza, L. R., Chhabra, B. N., Heydemann, J., Hung, C., Vanorny, D., Birhiray, D. & Dahl, Benny, 2023, In: Journal of Pediatric Orthopaedics Part B. 32, 4, p. 350-356

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Does Risser stage accurately predict the risk of curve progression in patients with adolescent idiopathic scoliosis treated with night-time bracing?

    Heegaard, M., Tøndevold, N., Dahl, Benny, Andersen, T. B., twc781, twc781 & Ohrt-Nissen, S., 2023, In: European Spine Journal. p. 3077–3083 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. 2022
  7. Published
  8. Published

    Kirurgi i akutmodtagelsen: Ryg, bækken og brystkasse

    Dahl, Benny, 2022, Kirurgi i akutmodtagelse. Munksgaard

    Research output: Chapter in Book/Report/Conference proceedingBook chapterEducation

  9. 2021
  10. Published

    Stratifying outcome based on the Oswestry Disability Index for operative treatment of adult spinal deformity on patients 60 years of age or older: a multicenter, multi-continental study on Prospective Evaluation of Elderly Deformity Surgery (PEEDS)

    Nielsen, C. J., Lewis, S. J., Oitment, C., Martin, A. R., Lenke, L. G., Qiu, Y., Cheung, K. MC., de Kleuver, M., Polly, D. W., Shaffrey, C. I., Smith, J. S., Spruit, M., Alanay, A., Matsuyama, Y., Jentzsch, T., Rienmuller, A., Shear-Yashuv, H., Pellisé, F., Kelly, M. P., Sembrano, J. N. & 3 others, Dahl, Benny, Berven, S. H. & Forum Deformity, A. S. K., Nov 2021, In: Spine Journal. 21, 11, p. 1775-1783 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Impact of New Motor Deficit on HRQOL After Adult Spinal Deformity Surgery: Subanalysis From Scoli Risk 1 Prospective Study

    Saigal, R., Lau, D., Berven, S. H., Carreon, L., Dekutoski, M. B., Kebaish, K. M., Qiu, Y., Matsuyama, Y., Kelly, M., Dahl, Benny, Mehdian, H., Pellisé, F., Lewis, S. J., Cheung, K. M. C., Shaffrey, C. I., Fehlings, M. G., Lenke, L. G. & Ames, C. P., 1 Apr 2021, In: Spine. 46, 7, p. E450-E457 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Length of stay, readmission, and mortality after primary surgery for pediatric spinal deformities: a 10-year nationwide cohort study

    Fruergaard, S., Ohrt-Nissen, S., Pitter, F. T., Høy, K., Lindberg-Larsen, M., Eiskjær, S., Dahl, Benny & Gehrchen, M., Apr 2021, In: Spine Journal. 21, 4, p. 653-663 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Revision risk after pediatric spinal deformity surgery: a nationwide study with 2-year follow-up

    Fruergaard, S., Ohrt-Nissen, S., Pitter, F. T., Høy, K., Lindberg-Larsen, M., Eiskjær, S., Dahl, Benny & Gehrchen, M., Apr 2021, In: Spine Journal. 21, 4, p. 642-652 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Are Higher Global Alignment and Proportion Scores Associated With Increased Risks of Mechanical Complications After Adult Spinal Deformity Surgery? An External Validation

    Kwan, K. Y. H., Lenke, L. G., Shaffrey, C. I., Carreon, L. Y., Dahl, Benny, Fehlings, M. G., Ames, C. P., Boachie-adjei, O., Dekutoski, M. B., Kebaish, K. M., Lewis, S. J., Matsuyama, Y., Mehdian, H., Qiu, Y., Schwab, F. J. & Cheung, K. M. C., 1 Feb 2021, In: Clinical Orthopaedics and Related Research. 479, 2, p. 312-320 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    A comparison of mortality and morbidity between complex and degenerative spine surgery in prospectively collected data from 2,280 procedures

    Solumsmoen, S., Bari, T. J., Woldu, S., Zielinski, O. B., twc781, twc781, Dahl, Benny & jmn329, jmn329, 2021, In: Neurospine. 18, 3, p. 524-532 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Lordosis distribution index in short-segment lumbar spine fusion – Can ideal lordosis reduce revision surgery and iatrogenic deformity?

    Bari, T. J., Heegaard, M., jmn329, jmn329, Dahl, Benny & twc781, twc781, 2021, In: Neurospine. 18, 3, p. 543-553 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Mechanical revision following pedicle subtraction osteotomy: a competing risk survival analysis in 171 consecutive adult spinal deformity patients

    Bari, T. J., Hallager, D. W., Hansen, L. V., Dahl, Benny & twc781, twc781, 2021, In: Spine Deformity. 9, 1, p. 191-205

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Morbidity and mortality following degenerative spine surgery in a prospective cohort of 1687 consecutive surgical procedures

    Solumsmoen, S., Bari, T. J., Woldu, S., Zielinski, O. B., twc781, twc781, Dahl, Benny & jmn329, jmn329, 2021, In: Acta Neurochirurgica. 163, p. 281–287 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Reducing revision rates following Pedicle Subtraction Osteotomy surgery: a single-center experience of trends over 7 years in patients with Adult Spinal Deformity

    Bari, T. J., Hallager, D. W., Hansen, L. V., Dahl, Benny & twc781, twc781, 2021, In: Spine Deformity. 9, 3, p. 803-815

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. 2020
  21. Published

    Distraction-to-Stall Versus Targeted Distraction in Magnetically Controlled Growing Rods

    Dragsted, C., Fruergaard, S., Jain, M. J., Deveza, L., Heydemann, J., Ohrt-Nissen, S., Andersen, T., Gehrchen, M. & Dahl, Benny, 2020, In: Journal of Pediatric Orthopaedics. 40, 9, p. e811-e817

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Evaluation of a new sagittal classification system in adolescent idiopathic scoliosis

    Fruergaard, S., Jain, M. J., Deveza, L., Liu, D., Heydemann, J., Ohrt-Nissen, S., Dragsted, C., Gehrchen, M., Dahl, Benny & Texas Children’s Hospital Spine Study Group, T. C. H. S. S. G., 2020, In: European Spine Journal. 29, 4, p. 744-753 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Minimal Access vs. Open Spine Surgery in Patients With Metastatic Spinal Cord Compression: A One-Center Randomized Controlled Trial

    Morgen, S. S., Hansen, L. V., Karbo, T., Svardal-Stelmer, R., twc781, twc781 & Dahl, Benny, 2020, In: Anticancer Research. 40, 10, p. 5673-5678

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Premature Termination of a Randomized Controlled Trial on Image-Guided Stereotactic Body Radiotherapy of Metastatic Spinal Cord Compression

    Suppli, M. H., Munck Af Rosenschold, P., Dahl, Benny, Berthelsen, A. K., Engelholm, S. A. & Pappot, Helle, 2020, In: The Oncologist. 25, 3, p. 210-e422

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Reproducibility of the classification of early onset scoliosis (C-EOS)

    Dragsted, C., Ohrt-Nissen, S., Hallager, D. W., Tøndevold, N., Andersen, T., Dahl, Benny & Gehrchen, M., 2020, In: Spine Deformity. 8, 2, p. 285-293 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    The Effect of Tobacco Smoking on Adverse Events Following Adult Complex Deformity Surgery: Analysis of 270 Patients from the Prospective, Multicenter Scoli-RISK-1 Study

    Wilson, J. R. F., Jiang, F., Badhiwala, J. H., Shaffrey, C. I., Carreon, L. Y., Cheung, K. M. C., Dahl, Benny, Ames, C. P., Boachie-Adjei, O., Dekutoski, M. B., Lewis, S. J., Matsuyama, Y., Mehdian, H., Pellisé, F., Qiu, Y., Schwab, F. J., Lenke, L. G. & Fehlings, M. G., 2020, In: Spine. 45, 1, p. 32-37 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Use of Opioids and Other Analgesics Before and After Primary Surgery for Adult Spinal Deformity: A 10-Year Nationwide Study

    Pitter, F. T., Sikora, M., Lindberg-Larsen, M., Pedersen, A. B., Dahl, Benny & twc781, twc781, 2020, In: Neurospine. 17, 1, p. 237-245

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. 2019
  29. Published

    Spinopelvic Parameters Depending on the Angulation of the Sacral End Plate Are Less Reproducible Than Other Spinopelvic Parameters in Adult Spinal Deformity Patients

    Bari, T. J., Hallager, D. W., Tøndevold, N., Karbo, T., Hansen, L. V., Dahl, Benny & twc781, twc781, Sep 2019, In: Spine Deformity. 7, 5, p. 771-778

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Ability of the Global Alignment and Proportion Score to Predict Mechanical Failure Following Adult Spinal Deformity Surgery—Validation in 149 Patients With Two-Year Follow-up

    Bari, T. J., Ohrt-Nissen, S., Hansen, L. V., Dahl, Benny & Gehrchen, M., Mar 2019, In: Spine Deformity. 7, 2, p. 331-337

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Moderate Interrater and Substantial Intrarater Reproducibility of the Roussouly Classification System in Patients With Adult Spinal Deformity

    Bari, T. J., Hallager, D. W., Tøndevold, N., Karbo, T., Hansen, L. V., Dahl, Benny & twc781, twc781, Mar 2019, In: Spine Deformity. 7, 2, p. 312-318

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Non-neurologic adverse events after complex adult spinal deformity surgery: results from the prospective, multicenter Scoli-RISK-1 study

    Kwan, K. Y. H., Bow, C., Samartzis, D., Lenke, L. G., Shaffrey, C. I., Carreon, L. Y., Dahl, Benny, Fehlings, M. G., Ames, C. P., Boachie-Adjei, O., Dekutoski, M. B., Kebaish, K. M., Lewis, S. J., Matsuyama, Y., Mehdian, H., Pellisé, F., Qiu, Y., Schwab, F. J. & Cheung, K. M. C., Jan 2019, In: European Spine Journal. 28, 1, p. 170-179 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Revision Risk After Primary Adult Spinal Deformity Surgery: A Nationwide Study With Two-Year Follow-up

    Pitter, F. T., Lindberg-Larsen, M., Pedersen, A. B., Dahl, Benny & Gehrchen, M., 2019, In: Spine Deformity. 7, 4, p. 619-626 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Unilateral versus bilateral lower extremity motor deficit following complex adult spinal deformity surgery: is there a difference in recovery up to 2-year follow-up?

    Tuchman, A., Lenke, L. G., Cerpa, M., Fehlings, M. G., Lewis, S. J., Shaffrey, C. I., Cheung, K. M. C., Carreon, L. Y., Dekutoski, M. B., Schwab, F. J., Boachie-Adjei, O., Kebaish, K., Ames, C. P., Qiu, Y., Matsuyama, Y., Dahl, Benny, Mehdian, H., Pellisé, F. & Berven, S. H., 2019, In: Spine Journal. 19, 3, p. 395-402

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. 2018
  36. Published

    An Analysis of the Incidence and Outcomes of Major Versus Minor Neurological Decline After Complex Adult Spinal Deformity Surgery: A Subanalysis of Scoli-RISK-1 Study

    Kato, S., Fehlings, M. G., Lewis, S. J., Lenke, L. G., Shaffrey, C. I., Cheung, K. M. C., Carreon, L. Y., Dekutoski, M. B., Schwab, F. J., Boachie-Adjei, O., Kebaish, K. M., Ames, C. P., Qiu, Y., Matsuyama, Y., Dahl, Benny, Mehdian, H., Pellisé, F. & Berven, S. H., 2018, In: Spine. 43, 13, p. 905-912

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    An international consensus on the appropriate evaluation and treatment for adults with spinal deformity

    AOSpine Knowledge Forum Deformity, A. K. F. D., 2018, In: European Spine Journal. 27, 3, p. 585-596 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Bacterial biofilms: a possible mechanism for chronic infection in patients with lumbar disc herniation - a prospective proof-of-concept study using fluorescence in situ hybridization

    Ohrt-Nissen, S., Fritz, Blaine Gabriel, Walbom, J., Kragh, K. N., Bjarnsholt, Thomas, Dahl, Benny & Manniche, C., 2018, In: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica. 126, 5, p. 440-447 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    External Validation of the Adult Spinal Deformity (ASD) Frailty Index (ASD-FI) in the Scoli-RISK-1 Patient Database

    AOSpine Knowledge Forum Deformity, the International Spine Study Group, A. K. F. D. T. I. S. S. G., 2018, In: Spine. 43, 20, p. 1426-1431

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Incidence and risk factors of postoperative neurologic decline after complex adult spinal deformity surgery: results of the Scoli-RISK-1 study

    Fehlings, M. G., Kato, S., Lenke, L. G., Nakashima, H., Nagoshi, N., Shaffrey, C. I., Cheung, K. M. C., Carreon, L., Dekutoski, M. B., Schwab, F. J., Boachie-Adjei, O., Kebaish, K. M., Ames, C. P., Qiu, Y., Matsuyama, Y., Dahl, Benny, Mehdian, H., Pellisé-Urquiza, F., Lewis, S. J. & Berven, S. H., 2018, In: The Spine Journal. 18, 10, p. 1733-1740

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Lower Extremity Motor Function Following Complex Adult Spinal Deformity Surgery: Two-Year Follow-up in the Scoli-RISK-1 Prospective, Multicenter, International Study

    AO Spine International and SRS Scoli-RISK-1 Study Group, A. S. I. A. S. S. S. G., 2018, In: Journal of Bone and Joint Surgery: American Volume. 100, 8, p. 656-665

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Quantitative B-lymphocyte deficiency and increased TCRγδ T-lymphocytes in acute infectious spondylodiscitis

    Haugaard, A. K., Marquart, H. V., Kolte, L., Ryder, L. P., Kehrer, M., Krogstrup, M., Dragsted, U. B., Dahl, Benny, Gjørup, I. E., Andersen, Å. B., Garred, Peter & Nielsen, S. D., 2018, In: Scientific Reports. 8, 11 p., 15174.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Survival and health related quality of life after severe trauma - a 15 years follow up study

    Wad, M. S., Laursen, T., Fruergaard, S., Morgen, S. S. & Dahl, Benny, 2018, In: Injury. 49, 2, p. 191-194

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Use of a distraction-to-stall lengthening procedure in magnetically controlled growing rods: A single-center cohort study

    Dahl, Benny, Dragsted, C., Ohrt-Nissen, S., Andersen, T. & Gehrchen, M., 2018, In: Journal of Orthopaedic Surgery. 26, 2, p. 1-9 2309499018779833.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. 2017
  46. Published

    Defining a core outcome set for adolescent and young adult patients with a spinal deformity

    de Kleuver, M., Faraj, S. S. A., Holewijn, R. M., Germscheid, N. M., Adobor, R. D., Andersen, M., Tropp, H., Dahl, Benny, Keskinen, H., Olai, A., Polly, D. W., van Hooff, M. L. & Haanstra, T. M., Dec 2017, In: Acta Orthopaedica (Print Edition). 88, 6, p. 612-618 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published

    Kinematic efficacy of supplemental anterior lumbar interbody fusion at lumbosacral levels in thoracolumbosacral deformity correction with and without pedicle subtraction osteotomy at L3: an in vitro cadaveric study

    Dahl, Benny, Harris, J. A., Gudipally, M., Moldavsky, M., Khalil, S. & Bucklen, B. S., Nov 2017, In: European Spine Journal. 26, 11, p. 2773-2781

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Inter- and intra-rater agreement in the assessment of the vascularity of spinal metastases using digital subtraction angiography tumor blush

    Clausen, C., Dahl, Benny, Frevert, S. C., Forman, Julie Lyng, Nielsen, Michael Bachmann & Lönn, Lars, Jun 2017, In: Acta Radiologica. 58, 6, p. 734-739 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Predictors of Health-Related Quality-of-Life After Complex Adult Spinal Deformity Surgery: A Scoli-RISK-1 Secondary Analysis

    Carreon, L. Y., Glassman, S. D., Shaffrey, C. I., Fehlings, M. G., Dahl, Benny, Ames, C. P., Matsuyama, Y., Qiu, Y., Mehdian, H., Cheung, K. M. C., Schwab, F. J., Pellisé, F., Kebaish, K. M. & Lenke, L. G., Mar 2017, In: Spine Deformity. 5, 2, p. 139-144 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Improved restoration of thoracic kyphosis using a rod construct with differentiated rigidity in the surgical treatment of adolescent idiopathic scoliosis

    Ohrt-Nissen, S., Dragsted, C., Dahl, Benny, Ferguson, J. A. I. & twc781, twc781, 2017, In: Neurosurgical Focus. 43, 4, 8 p., E6.

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. Published

    Mortality and health-related quality of life in patients surgically treated for spondylodiscitis

    Dragsted, C., Aagaard, T., Ohrt-Nissen, S., twc781, twc781 & Dahl, Benny, 2017, In: Journal of Orthopaedic Surgery. 25, 2, 8 p., 2309499017716068.

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. Published

    Radiographic Predictors for Mechanical Failure After Adult Spinal Deformity Surgery: A Retrospective Cohort Study in 138 Patients

    Hallager, D. W., Karstensen, S., Bukhari, N., twc781, twc781 & Dahl, Benny, 2017, In: Spine. 42, 14, p. E855-E863

    Research output: Contribution to journalJournal articleResearchpeer-review

  53. Published

    Reproducibility of thoracic kyphosis measurements in patients with adolescent idiopathic scoliosis

    Ohrt-Nissen, S., Cheung, J. P. Y., Hallager, D. W., twc781, twc781, Kwan, K., Dahl, Benny, Cheung, K. M. C. & Samartzis, D., 2017, In: Scoliosis and Spinal Disorders. 12, 8 p., 4.

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. 2016
  55. Published

    Flexibility Predicts Curve Progression in Providence Nighttime Bracing of Patients With Adolescent Idiopathic Scoliosis

    Ohrt-Nissen, S., Hallager, D. W., Gehrchen, P. M. & Dahl, Benny, 15 Nov 2016, In: Spine. 41, 22, p. 1724-1730 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    Reliability of the radiographic variables in the International Spinal Cord Injury Spinal Column Injury Basic Data Set compared with the AO classification

    Lucantoni, C., Krishnan, R. G., Gehrchen, P. M., Hallager, D. W., Biering-Sørensen, Fin & Dahl, Benny, Oct 2016, In: Spinal Cord. 54, 10, p. 884-888 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. Published

    A Comprehensive Analysis of the SRS-Schwab Adult Spinal Deformity Classification and Confounding Variables: A Prospective, Non-US Cross-sectional Study in 292 Patients

    Hallager, D. W., Hansen, L. V., Dragsted, C. R., Peytz, N., Gehrchen, M. & Dahl, Benny, 15 May 2016, In: Spine. 41, 10, p. E589-97 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. Published

    Supine Lateral Bending Radiographs Predict the Initial In-brace Correction of the Providence Brace in Patients With Adolescent Idiopathic Scoliosis

    Ohrt-Nissen, S., Hallager, D. W., Gehrchen, P. M. & Dahl, Benny, May 2016, In: Spine. 41, 9, p. 798-802 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  59. Published

    Use of Supplemental Short Pre-Contoured Accessory Rods and Cobalt Chrome Alloy Posterior Rods Reduces Primary Rod Strain and Range of Motion Across the Pedicle Subtraction Osteotomy Level: An In Vitro Biomechanical Study

    Hallager, D. W., Gehrchen, P. M., Dahl, Benny, Harris, J. A., Gudipally, M., Jenkins, S., Wu, A. & Bucklen, B. S., Apr 2016, In: Spine. 41, 7, p. E388-E395

    Research output: Contribution to journalJournal articleResearchpeer-review

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