Theresa J.C. Pazionis, MD, MA, FRCSC, ABOS

Clinical Interests

• Spine surgery
• Spinal deformity correction: scoliosis, kyphosis, sagittal plane deformity
• Adolescent idiopathic scoliosis (AIS)
• Degenerative scoliosis
• Degenerative spine disease: arthritis 
• Cervical spine
• Cervical spine fusion
• Cervical spine motion preservation: cervical disc replacement, laminoplasty
• Lumbar spine surgery: decompression, fusion
• Microdiscectomy
• Minimally invasive spine surgery
• Spine tumor resection: en bloc resection, separation surgery
• Orthopedic oncology
• Primary malignant bone tumors: osteogenic sarcoma, chondrosarcoma, Ewing's Sarcoma, MFH etc.
• Metastatic disease to bone
• Primary malignant soft tissue tumors: sarcoma
• Benign and benign aggressive bone tumors: giant cell tumor, etc
• Benign and benign aggressive soft tissue tumors
• Metabolic bone disease
• Sarcopenia

Research Interests

Evaluation, treatment and outcomes in metastatic bone disease; Function and oncologic outcomes in the treatment of metastatic spine disease; Chondrosarcoma; Spinal biomechanics

Education

• MD, University of Toronto, Toronto, Ontario, Canada

Training

• Fellowship, Spine Surgery, Hospital for Special Surgery, NY, NY
• Fellowship, Orthopaedic Oncology, Memorial Sloan Kettering Cancer Center, NY, NY
• Residency, Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada

Board Certifications

• American Board of Orthopaedic Surgery

Memberships

• Fellow of the Royal College of Surgeons of Canada
• American Association of Orthopedic Surgeons
• International Society of Limb Salvage (ISOLS)
• Musculoskeletal Tumor Society (MSTS)
• North American Spine Society (NASS)