NicholasUAhnMD

Orthopaedic Surgery • Cleveland, OH

Orthopedic Spine Surgery

Professor, Orthopedics, Case Western Reserve University School of Medicine

Join to view full profile

Dr. Ahn is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

Connect with other colleagues in the same hospital or clinic
Search all U.S. specialist profiles and refer a patient
Read the latest clinical news and earn CME/CEU credits

See Dr. Ahn's full profile

Already have an account?

Office
UH Cleveland Medical Center
11100 Euclid Ave Department of Orthopedics
Cleveland, OH 44106
Phone+1 216-844-7200

Fax+1 216-844-7143
Is this information wrong?

Education & Training

Rush University Medical CenterFellowship, Orthopaedic Surgery Of The Spine, 2001 - 2002
Johns Hopkins UniversityResidency, Orthopaedic Surgery, 1996 - 2001
Harvard Medical SchoolClass of 1996

Certifications & Licensure

OH State Medical License 2005 - 2025
KY State Medical License 2023 - 2025
FL State Medical License 2012 - 2014
IL State Medical License 2001 - 2002
American Board of Orthopaedic Surgery Orthopaedic Surgery

Publications & Presentations

PubMed

Risk Factors for Readmission Following Surgical Decompression for Spinal Epidural Abscesses: An Analysis of 4595 Patients.
Ariel Rodriguez, Aaron Lam, Amrit S Khalsa, Mitchell K Ng, Ahmed Emara, Ian J Wellington, Nicholas U Ahn, John K Houten, Ahmed Saleh, Afshin E Razi, Ng, M.> ;Clinical Spine Surgery. 2024 Mar 12
Resource Utilization following Anterior Versus Posterior Cervical Decompression and Fusion for Acute Central Cord Syndrome.
Jerry Y Du, Karim Shafi, Collin W Blackburn, Jens R Chapman, Nicholas U Ahn, Randall E Marcus, Todd J Albert> ;Clinical Spine Surgery. 2024 Mar 1
Elective Single-Level Primary Anterior Cervical Decompression and Fusion for Degenerative Spondylotic Cervical Myelopathy is Associated With Decreased Resource Utiliza...
Jerry Y Du, Karim Shafi, Collin W Blackburn, Jens R Chapman, Nicholas U Ahn, Randall E Marcus, Todd J Albert> ;Clinical Spine Surgery. 2024 Feb 22
Association Between Hypercholesterolemia and Lumbar Degenerative Back Pain: A Medicare Expenditure Panel Survey (MEPS) Study.
Idris Hanidu, Ryan Johnson, Peter Ahorukomeye, Nicholas U Ahn> ;Cureus. 2023 Oct 1
3 citations
Lower Neighborhood Socioeconomic Status May Influence Medical Complications, Emergency Department Utilization, and Costs of Care After 1- to 2-Level Lumbar Fusion.
Adam M Gordon, Faisal R Elali, Mitchell K Ng, Ahmed Saleh, Nicholas U Ahn> ;Spine. 2023 Dec 15
Effect of Smoking on Motor Recovery After Cervical American Spinal Injury Association Grade D Traumatic Spinal Cord Injury.
Tyler James Moon, Ryan Furdock, Collin Blackburn, Nicholas Ahn> ;International Journal of Spine Surgery. 2023 Apr 1
3 citations
Association Between Hypercholesterolemia and Neck Pain in a Cross-sectional Population-based Study.
Arushi Mahajan, Jerry Y Du, Charles C Yu, Amit K Bhandutia, Nicholas U Ahn, Peter Ahorukomeye> ;Spine. 2023 Jan 15
3 citations
Multi-Level Posterior Cervical Foraminotomy Associated With Increased Post-operative Infection Rates and Overall Re-Operation Relative to Anterior Cervical Discectomy ...
Mitchell K Ng, Andriy Kobryn, Joydeep Baidya, Patrick Nian, Ahmed K Emara, Nicholas U Ahn, John K Houten, Ahmed Saleh, Afshin E Razi, Ng, M.> ;Global Spine Journal. 2024 Apr 1
1 citations
Evaluation of Factors Affecting Return to Work Following Carpal Tunnel Release: A Statewide Cohort Study of Workers' Compensation Subjects.
Joshua T Anderson, Andrew R Stephens, Arnold R Haas, Nicholas U Ahn, Nikolas H Kazmers> ;The Journal of Hand Surgery. 2022 Jun 1
4 citations
Quantifying the Economic Impact of Depression for Spine Patients in the United States.
Bryan O Ren, Pranav Khambete, Chandruganesh Rasendran, Jeffrey A. O'Donnell, Nicholas U. Ahn> ;Clinical Spine Surgery. 2021 Jun 29
1 citations
The Impact of Smoking in Workers' Compensation Patients Receiving Spinal Cord Stimulation.
Bryan O Ren, Jeffrey A. O’Donnell, Joshua T. Anderson, Arnold R. Haas, Rick Percy, Stephen T. Woods, Uri M. Ahn, Nicholas U. Ahn> ;Journal of Surgical Orthopaedic Advances. 2021 Jan 1
1 citations
Time to Surgery Affects Return to Work Rates for Workers' Compensation Patients With Single-Level Lumbar Disk Herniation.
Bryan O Ren, Jeffrey A. O'Donnell, Joshua T. Anderson, Arnold R. Haas, Rick Percy, Stephen T. Woods, Uri M. Ahn, Nicholas U. Ahn> ;Orthopedics. 2021 Jan 1
13 citations
Symptomatic Epidural Hematoma after Elective Posterior Lumbar Decompression: Incidence, Timing, Risk Factors, and Associated Complications
Konrad D. Knusel, Jerry Y Du, Bryan O Ren, Chang-Yeon Kim, Uri M. Ahn, Nicholas U. Ahn> ;HSS Journal. 2020 Dec 1
Volar and Dorsal Blood Supply to the Lunate: A Cadaveric Study.
Valerie Carbajal, Navkirat S. Bajwa, Jason O. Toy, Uri M. Ahn, Nicholas U. Ahn> ;Orthopedics. 2021 Mar 1
Effect of Nicotine Dependence and Smoking on Revision Diskectomy After Single-Level Lumbar Diskectomy.
Eric J Smith, Bradley P Inkrott, Jerry Y Du, Uri M. Ahn, Nicholas U. Ahn> ;Orthopedics. 2020 Jul 7
4 citations
Displaced Femoral Neck Fractures in Workers' Compensation Patients Aged 45-65 Years: Is It Best to Fix the Fracture or Replace the Joint?
Joshua T. Anderson, Ashley R. Hudyk, Arnold R. Haas, Nicholas U. Ahn, David L. Rothberg, Jeremy M. Gililland> ;The Journal of Arthroplasty. 2020 Jun 7
4 citations
Shorter Time to Surgery Is Associated With Better Outcomes for Spondylolisthesis in the Workers' Compensation Population.
Bryan O Ren, Christopher A Rothfusz, Mhamad Faour, Joshua T. Anderson, Jeffrey A. O'Donnell, Arnold R. Haas, Rick Percy, Stephen T. Woods, Uri M. Ahn, Nicholas U. Ahn> ;Orthopedics. 2020 Mar 20
1 citations
The Relationship Between Cigarette Smoking and the Prevalence, Frequency and Severity of Back Pain.
Carolyn R Postol, David J Kusin, Charles C Yu, Jerry Y Du, Chang Y Kim, Adam J Schell, Uri M. Ahn, Nicholas U. Ahn> ;Journal of Surgical Orthopaedic Advances. 2020 Jan 1
2 citations
The Effect of Obesity on Revision Discectomy After Singlelevel Lumbar Discectomy.
Eric J Smith, Bradley P Inkrott, Chang-Yeon Kim, Jerry Y Du, Uri M. Ahn, Nicholas U. Ahn> ;Journal of Surgical Orthopaedic Advances. 2020 Jan 1
25 citations
30-day Mortality Following Surgery for Spinal Epidural Abscess: Incidence, Risk Factors, Predictive Algorithm, and Associated Complications.
Jerry Y Du, Adam J Schell, Chang-Yeon Kim, Nikunj N. Trivedi, Uri M. Ahn, Nicholas U. Ahn> ;Spine. 2019 Apr 15
4 citations
Multilevel Lumbar Fusion Is a Risk Factor for Lower Return to Work Rates Among Workers' Compensation Subjects With Degenerative Disc Disease.
Joshua T Anderson, Erik Y Tye, Arnold R Haas, Rick Percy, Stephen T Woods, Uri M Ahn, Nicholas U Ahn> ;Journal of Surgical Orthopaedic Advances. 2018 Nov 30
The Effect of Age on the Benefits of Early Decompression for Cervical Spondylotic Myelopathy.
David J Kusin, Uri M. Ahn, Nicholas U. Ahn> ;American Journal of Orthopedics. 2018 Sep 1
13 citations
The Association Between Body Mass Index and the Prevalence, Severity, and Frequency of Low Back Pain: Data From the Osteoarthritis Initiative.
Charles A Su, David J Kusin, Samuel Q. Li, Uri M. Ahn, Nicholas U. Ahn> ;Spine. 2018 Jun 15
Cervicothoracic Pedicle Morphometry: Using an Osteological Collection to Characterize Trends in Pedicle Size.
Mhamad Faour, Charles C Yu, Navkirat Bajwa, Jason O Toy, Uri M Ahn, Nicholas U Ahn> ;Journal of Surgical Orthopaedic Advances. 2018 May 16
1 citations
Lumbar Discography Is Associated With Poor Return to Work Status Following Lumbar Fusion Surgery in a Workers' Compensation Setting.
Joshua T Anderson, Jeffrey A O'Donnell, Arnold R Haas, Rick Percy, Stephen T Woods, Uri M Ahn, Nicholas U Ahn> ;Journal of Surgical Orthopaedic Advances. 2018 May 16
Join now to see all

Hospital Affiliations

VA Northeast Ohio Healthcare SystemCleveland, Ohio
University Hospitals Ahuja Medical CenterBeachwood, Ohio
University Hospitals Cleveland Medical CenterCleveland, Ohio