Oblique Lateral Lumbar Interbody Fusion (OLLIF)

OLLIF is a minimally invasive lumbar fusion procedure used to treat multiple conditions of the lumbar spine. OLLIF is less invasive and does not require removal of bone or ligamentous structures of the spine.

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Minimally Invasive Spine Surgery

Minimally invasive spine surgery does not involve a long incision, thereby avoiding significant damage to the muscles surrounding the spine. In most cases, this results in less pain after surgery and a faster recovery.

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Endoscopic Surgery

Endoscopic spine surgery utilizes a series of long tubes, small surgical tools, and a small camera to address neural compression. This allows for shorter hospital stays, quicker recovery times and less scarring.

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Dr. William C. Tally

Board-Certified Spine Surgeon
Spine and Scoliosis Specialist

A native of Raleigh, NC, Dr. Tally attended medical school at Wake Forest University on a full academic merit scholarship. He completed his residency at Thomas Jefferson University Hospital / The Rothman Institute in Philadelphia and has fellowships at The University of Pennsylvania and at A.I. Dupont Children's Hospital in Wilmington, DE.

He currently resides in Athens, GA with his two sons Samuel and Alex, and their Border Collie Celsie.


  • Undergraduate: North Carolina State University, Raleigh, NC
  • Medical: Wake Forest University School of Medicine, Winston Salem, NC
  • Graduate: Duke University, Durham, NC


  • Surgical Internship: Thomas Jefferson University Hospital, Philadelphia, PA
  • Orthopedic Surgery Residency: Thomas Jefferson University Hospital, Philadelphia, PA
  • Combined Orthopedic/Neurosurgical Spinal Reconstruction Fellowship: Pennsylvania Hospital/University of Pennsylvania, Philadelphia PA & A.I. Dupont Children's Hospital, Wilmington, DE

Professional Affiliations

  • American Academy of Orthopaedic Surgeons (AAOS)
  • North American Spine Society (NASS)
  • Scoliosis Research Society
  • Society of Minimally Invasive Spine Surgeons (SMISS)
  • International Society for the Advancement of Spine Surgery (ISASS)

Hospital Affiliations

Consultant Agreements

  • Globus Medical (Patent Pending): Physician Educator, LLIF/TLIF/Product Design
  • Amendia Medical (3 Patents Pending): Physician Educator, OLLIF/Savannah-T Product Development
  • Stryker Spine: Physician Educator, Product Evaluation

Academic Extracurriculars

  • Performed 1st percutaneous OLLIF in Asia 6/2012 FUSO Hospital/Soochow University, Soochow, China
  • Editorial review board: International Spine Journal
  • Faculty: International Intradiscal Therapy and Transforaminal Society
  • Attending Surgeon: International Spine and Orthopedic Institute

Clinical Studies

  • PI in Globus study “Caliber-L Prospective Outcome Evaluation”
  • Co-investigator: Dysphagia/dysphonia:evaluation of Globus Coalition – 2010
  • Co-investigator: Osseofix compression fracture vertebral body augmentation IDE study – 2009
  • Investigator: Duragen neural fibrosis barrier study – 2009
  • Primary user group-evaluation of new technology Globus revolve percutaneous pedicle screw system – 2009
  • Site PI: nuvasive Formagraft posterior lateral fusion efficacy study – 2007-2008
  • Investigator/IDE: Nuvasive Neodisc equivalency trial – 2007
Make an Appointment (706) 549-1663
Dr. Tally

William C. Tally, MD

Dr. Tally specializes in the treatment of a variety of spinal conditions and performs all aspects of spinal surgery including:

  • All Aspects of Spine
  • Scoliosis
  • Deformity Correction
  • MIS (minimally invasive surgery) techniques
  • Endoscopic techniques