William C. Welch - Faculty Biosketch

William C. Welch, MD, FAANS, FACS, FICS, FAANOS

Frederick A. Simeone Professor in Neurosurgery

Chair, Department of Neurosurgery, Pennsylvania Hospital

Neurosurgery Staff, Pennsylvania Hospital 18 Philadelphia, PA

Neurosurgery Staff, Hospital of The University of Pennsylvania, Philadelphia PA

member, Executive Committee 18 Pennsylvania Hospital 18 Philadelphia, PA

member, Operating Room Committee 1d Pennsylvania Hospital

Member , Center for Bloodless Medicine, Pennsylvania Hospital

Chairman, Neurosurgery Committee on Academic Promotions (dCOAP) 7

Chairman , Department of Neurosurgery 1c Pennsylvania Hospital

Co-Chair, Spine Committee, 1d Pennsylvania Hospital

Member, Clinical Competency Committee (UPHS Department of Neurosurgery Residency Review)

staff, Neurosurgery Staff 1c Penn Presbyterian Hospital 16 Philadelphia,PA

Director, MS 200 Neurosurgery Rotation Pennsylvania Hospital

member, Bioengineering Graduate Group, School of Bioengineering 22 University of Pennsylvania

Co-Developer, Perelman School of Medicine relationship with Cairo University, Cairo, Egypt

Medical Director , Spine Center at Pennsylvania Hospital

Vice Chair, Academic Affairs, Department of Neurosurgery

Vice-Chair, Faculty Affairs, Department of Neurosurgery

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Department: Neurosurgery

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46 Contact information
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Department of Neurosurgery
1d Pennsylvania Hospital
19 801 Spruce Street
2c 8th Floor
Philadelphia, PA 19107

2e Office: 215-829-6700
32 Fax: 215-829-3361
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Email:
william.welch@pennmedicine.upenn.edu

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1f Graduate Group Affiliations 8

Bioengineering

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13 Education:
21 8 B.S 1a (BS-MD program) c
36 The City College of New York , 1983.
21 9 M.D. c
4f State University of New York, Downstate Medical Center, 1985.
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1f Post-Graduate Training
24 76 Intern General Surgery, University of Rochester-Strong Memorial Hospital, Rochester, N.Y, 1985-1986.
24 7f Resident, Neurological Surgery, University of Rochester-Strong Memorial Hospital, Rochester, N.Y., 1986-1991.
24 85 Fellowship, Neuro-oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, N.Y., 1991-1992.
24 7b Fellowship, Spinal Surgery, Albert Einstein College of Medicine, Weiler Hospital, Bronx, N.Y., 1992-1993.
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17 Certifications
28 40 American Board of Neurological Surgeons, 1995.
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3 8d Permanent link
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b6 > Perelman School of Medicine > Faculty > Details a

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Description of Research Expertise

1d Tarlov Cysts
1d Large Language Models
17 Spinal stenosis
1b Spinal biomechanics
16 Spinal outcomes
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Description of Clinical Expertise

45 All aspects of spinal surgery (over 15,000 surgeries)
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Selected Publications

162 Albayar A, Mensah-Brown K, Spadola M, Johnson M, Leibowitz L, Ali AS, Saifi C, Malhotra NR, Welch WC, Arlet V, Ozturk AK: Staging circumferential spinal fusions for adult spinal deformities adds admission costs without improving postoperative outcomes. JMIR Research Protocol 2025.

1ab Howard SD, Pessoa R, Costello L, Silpagar M, Gardiner D, Tambe U, Rushanan S, Josi D, Nguyen J, Macaluso D, Malhotra NR, Welch WC, Ali ZS: Accuracy of RAPT score in predicting discharge disposition in patients undergoing spine surgery within an enhanced recovery after surgery program. Clinical Spine Surg 134, 2025 Notes: 10.1097/BSD.0000000000001810.

1b0 Sussman JH, Budihal BR, Gujral J, Santangelo G, Wathen CA, Ghenbot Y, Arena JD, Golubovsky JL, Gu BJ, Yoon JW, Ozturk AO, Anari J, Winkelstein B, Welch WC: Development and validation of a keypoint region-based convolutional neural network to automate thoracic cobb angle measurements using whole-spine standing radiographs. Nature Scientific Reports 13, 2025.

1c9 Dagli MM, Wathen C, Golubovsky JL, Ghenbot Y, Arena J, Santangelo G, Heintz J, Welch WC, Yoon J, Arlet V, Ozturk AK: Preoperative anemia is associated with increased length of stay in adult spinal deformity surgery: evaluation of a large single-center patient cohort and future suggestions for patient optimization. Spine Deformity 13: 625-637, 2025 Notes: 10.1007/s43390-024-01003-w.

1d1 Dagli MM, Turlip RW, Oettl FC, Emara M, Gujral J, Chauhan D, Ahmad HS, Santangello G, Wathen CA, Ghenbot Y, Arena JD, Golubovsky JL, Gu B, Yoon JW, Ozturk AK, Welch WC: Comparison of outcomes between staged and same-day circumferential spinal fusion for adult spinal deformity: systematic review and meta-analysis. Interactive Journal of Medical Research 14: e6729, 2025 Notes: 10.2196/67290.

146 Elsamadicy AA, Cross J, Reeves BC, Shaffer A, McGuire LS, Welch WC, Arnold PM, Rosenow JM: Characteristics of reported industry payment to Neurosurgeons from 2019-2022: the impact of COVID-19. J Clin Neurosci 134, 2025 Notes: 10/1016/j.jocn.2025.111089.

187 Dagli MM, Ghenbot Y, Ahmad HS, Chauhan D, Turlip R, Wang P, Welch WC, Ozturk AK, Yoon JW: Development and validation of a novel AI framework using NLP with LLM integration for relevant clinical data extraction through automated chart review. Nature Scientific Reports 14: 26783, 2025 Notes: 10.1038/s41598-024-77535-y.

142 Sussman JH, Dagli MM, Wald SL, Akhtar SS, Natan K, Xu JA, Li A, Dawson B, Welch WC: Exploring the experiences of patients with rare diseases in Pennsylvania: a community-based study. Public Health Reports 134, 2025 Notes: 10.1177/00333549251362711.

228 Ghenbot Y, Arena J, Dagli MM, Macaluso DM, Ghenbot S, Wathen C, Khela H, Ahmad H, Santangelo G, Golugobsky J, Wright J, Heintz J, Ali Z, Malhotra NR, Welch WC, Yoon J, Arlet V, Ozturk AK: The influence of the magnitude of sagittal correction and local junctional factors on proximal junctional kyphosis and failure following correction of adult spinal deformity: an inverse probability weighted analysis. Journal of Neurosurgery: Spine 13, 2025 Notes: 10.3171/2024.12.SPINE24899.

1ab Dagli MM, Wathen CA, Golubovsky JL, Ghenbot J, Arena J, Heintz J, Macaluso D, Santangelo G, Ali Z, Malhotra NR, Yoon J, Welch WC, Arlet V, Ozturk A. : Intravenous tranexamic acid reduces blood loss and perioperative transfusion requirements in adult spinal deformity: a propensity-scored observational study. Journal of Neurosurgery: Spine 7: 1-9, 2025.

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26 Last updated: 08/04/2025
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