Photo of Dr. John C. F. Clohisy

John Clayton Clohisy Jr., MD

Assistant Professor, Orthopaedic Surgery
Division of Spine Surgery

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(314) 514-3500

Dr. Clohisy is a fellowship-trained spine surgeon specializing in the comprehensive treatment of spinal disorders. He has particular interest in cervical spine surgery, minimally invasive spine surgery, motion preservation (non-fusion) surgery, robotics and computer navigation.

Dr. Clohisy completed his orthopedic surgery residency at Washington University in St. Louis and fellowship training in spine surgery at Hospital for Special Surgery in New York, NY. During residency and fellowship, Dr. Clohisy trained in both traditional open and cutting-edge minimally invasive techniques including computer-guided navigation and robotic spine surgery.

Dr. Clohisy is passionate about improving patient experience and outcomes through clinical excellence, education, and research. He has received research and academic grants and has several peer-reviewed scientific articles, book chapters, lectures, podium presentations, and poster presentations.

Dr. Clohisy is dedicated to patient-centered care. He seeks to understand each patient’s story, how their spine problems affect their lives, and their goals for treatment. Dr. Clohisy and his patients develop tailored solutions to their unique problems to get each patient back to doing what they love as quickly as possible. He believes in a multidisciplinary approach and encourages his patients to exhaust nonoperative treatments whenever possible before considering surgery.

Dr. Clohisy is honored to serve the people of St. Louis and surrounding regions. He is committed to carrying on the tradition of excellence in orthopedics and spine surgery at Washington University.

Common Diagnoses Treated

  • Atlantoaxial instability
  • Atlantoaxial and occipitocervical pathology
  • Back and neck pain
  • Cervical myelopathy
  • Cervical radiculopathy
  • Cervical spondylosis
  • Cervical stenosis
  • Degenerative disc disease
  • Herniated disc (sciatica)
  • Radiculopathy
  • Revision/failed spine surgery
  • Spinal deformity
  • Spinal stenosis
  • Spine trauma/fractures
  • Spine tumors
  • Spondylolisthesis
  • Spondylolysis
  • Sports injuries of the spine

Common Procedures

  • Anterior cervical decompression and fusion (ACDF)
  • Anterior cervical corpectomy and fusion
  • Anterior lumbar interbody fusion (ALIF)
  • Atlantoaxial fusion (C1-C2 fusion)
  • Cervical disc replacement/arthroplasty
  • Cervical laminoplasty
  • Facet cyst excision
  • Lumbar decompression and fusion
  • Occipitocervical fusion
  • Posterior cervical decompression and fusion
  • Posterior cervical foraminotomy
  • Minimally invasive surgery (MIS)
  • Minimally invasive decompression
  • Minimally invasive discectomy
  • Minimally invasive foraminotomy
  • Minimally invasive fusion
  • Minimally invasive lateral lumbar interbody fusion (LLIF/XLIF)
  • Minimally invasive transforaminal lumbar interbody fusion (MIS TLIF)
  • Motion preserving spine surgery
  • Robotic and navigated spine surgery
  • Spinal deformity correction
  • Thoracic decompression and/or fusion

Clinical Office Locations

Hospital Affiliations

  • Barnes-Jewish Hospital
  • Barnes-Jewish West County Hospital

MyChart Patient Portal

Patient Education

Peer-Reviewed Publications

View Dr. Clohisy's complete list of publications here.

Book Chapters

  • Clohisy JCF, Kim HJ. Posterior Occipitocervical Fusion. In: Albert TJ, Zdeblick TA, eds. Master Techniques in Orthopaedic Surgery: The Spine, 4th Edition. Wolters Kluwer; 2023.
  • Clohisy JCF, O’Keefe RJ, Goodwin ML. Intervertebral Disc. In: Ahn J, Elfar J. American Academy of Orthopaedic Surgeons Comprehensive Orthopaedic Review, 4th Edition. Wolters Kluwer; in press.

Research Interests

Dr. Clohisy has research interests in clinical outcomes, cervical spine surgery, minimally-invasive surgery and motion preservation.


Dr. Clohisy was born and raised in St. Louis, MO. He completed his undergraduate studies at the University of Notre Dame, majoring in Biological Sciences. He attended medical school at the University of Missouri-Columbia and completed his orthopedic surgery residency at Washington University in St. Louis. He completed a spine surgery fellowship at Hospital for Special Surgery in New York, NY.

Board Certifications

  • Board-eligible, American Board of Orthopaedic Surgery

Medical Degree

  • University of Missouri School of Medicine, Columbia, MO


  • Orthopedic Surgery, Washington University / Barnes-Jewish Hospital / St. Louis Children’s Hospital, St. Louis, MO


  • Spine Surgery, Hospital for Special Surgery, New York, NY

Honors and Awards

  • Administrative Chief Fellow, HSS Spine Fellowship, 2022-23
  • OMeGA Medical Grants Association Grant, HSS Spine Fellowship, 2022-23
  • Louis and Rachel Rudin Foundation Research Grant, 2022
  • American Orthopaedic Association C. McCollister Evarts Resident Leadership Forum, 2022
  • Journal of Bone and Joint Surgery (JBJS) Robert Bucholz Journal Club Grant, 2020-21
  • Missouri Orthopaedic Institute Award for Student Excellence, 2017
  • Holt Leadership Award, University of Missouri School of Medicine, 2017
  • President, University of Missouri School of Medicine Class of 2017, 2015-17
  • Gold Humanism Honor Society, 2016

Professional Societies and Organizations

  • Cervical Spine Research Society (CSRS)
  • Society for Minimally Invasive Spine Surgery (SMISS)
  • American Academy of Orthopaedic Surgeons (AAOS)
  • AO Spine North Americas

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