Tumor Surgery Global Community
Dedicated to Providing Patients Extraordinary Holistic Care Founded In Education, Research, and Innovation™
Research and Innovation
Showcasing ongoing research projects, technological innovations to orthopedic oncologsists.
Our Mission
Bringing valuable, up-to-date resources and news to orthopedic oncologists worldwide.
Established nearly two decades ago by renowned surgeon, healer, teacher, executive, and entrepreneur James C. Wittig, MD, and serving tens of thousands of orthopedic surgeons, oncologists, medical students, residents, researchers, and more, our new media platform was launched in August 2025. It is sponsored by Mandala Medical Group based in New Jersey.
Subscribe and enjoy the many benefits of membership including industry news and views.
Virtual Education Center
Visit our virtual educational center to find useful and inspiring information. We welcome submissions, which will be reviewed and if accepted, published in this center.
Who We Are
Educators. Researchers. Innovators.
Our Founder
Dr. James C. Wittig is an American oncological orthopedic physician, surgeon, healer, educator, mentor, innovator, purpose-driven entrepreneur, impact investor, animal rights advocate, and humanitarian.
Read the Textbook
Step-by-step descriptions of surgical techniques for the management of bone and soft-tissue tumors of the extremities shoulder and pelvic girdle sarcomas new, sophisticated, multimodality procedures for truncal and abdominal sarcomas.
Meet Us at Industry Events
Dr. Wittig will be chairing the longest running and most prestigious gathering of orthopedic physicians and researchers in the world. This Annual Meeting of the Clinical Orthopaedic Society (COS) has been developed primarily for orthopaedic and trauma surgeons.
Resources
Our Publication Hub
Take advantage of our Resources page, which lists dozens of publications, associations, government agencies, medical schools, applications for fellowships, CME courses, and more. Feel free to submit your information for consideration.
Read up on the latest scientific developments, access papers from the NIH and other organizations, organized by topic, and sign up for alerts as new research is promoted or published.
Join the Community
Getting Involved
Join the Team
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Become a Contributor
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Meet Other Contributors
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Community Blog
The Global Tumor Surgery Community Blog
Conventional Chondrosarcoma! Rare Primary Bone Cancer but the 2nd Most Common Bone Sarcoma: Presentation, Radiology, Pathology, Treatment and Prognosis
Conventional chondrosarcoma, a rare but significant bone sarcoma, is explained by Dr. James C. Wittig. This blog covers diagnosis, radiology, pathology, treatment approaches, prognosis, and new clinical research updates.
Operative Techniques in Orthopaedic Surgical Oncology – Textbook by Dr. James C. Wittig
Dr. James C. Wittig co-authored Operative Techniques in Orthopaedic Surgical Oncology, a step-by-step surgical oncology textbook with full-color illustrations and expert insights.
Musculoskeletal Tumors: Symptoms, Diagnosis, and Treatment
Musculoskeletal tumors may affect bones, joints, and soft tissues. Dr. James C. Wittig explains symptoms, risk factors, diagnosis, and treatment in his educational video.