
Medically Reviewed By
Dr. Deepak Garg ( Orthopaedic Oncology & Robotic Joint Surgery)
A definitive musculoskeletal oncology review on Giant Cell Tumor of Bone (GCTB) and Aneurysmal Bone Cysts (ABC), evaluating RANKL-targeted monoclonal antibody therapy (Denosumab), subchondral joint salvage, high-speed burr cavity extension, liquid nitrogen cryotherapy, and polymethylmethacrylate (PMMA) cementing.
CRITICAL CLINICAL RED FLAG: A young adult (20 to 40 years) presenting with progressive, dull, persistent knee or wrist pain and eccentric, expansile radiolucent osteolytic destruction extending to the subchondral joint margin on X-ray requires immediate core biopsy and orthopaedic oncology staging.
Giant Cell Tumor of Bone (GCTB) is a locally aggressive, osteolytic benign-aggressive neoplasm. The true neoplastic component consists of mononuclear stromal cells harboring somatic H3F3A mutations that massively overexpress RANK Ligand (RANKL). RANKL continuously recruits and hyper-activates non-neoplastic multinucleated osteoclast-like giant cells, causing aggressive bone resorption.
Epiphysio-Metaphyseal Location: Proximal tibia, distal femur, distal radius, and sacrum.
Campanacci Radiographic Staging: Stage I (latent, intraosseous), Stage II (active, thinned expanded cortex), Stage III (aggressive, cortical breach and soft tissue mass).
Denosumab (a human monoclonal antibody targeting RANKL, 120 mg subcutaneous with loading doses on days 8 and 15):
Elimination of Giant Cells: Rapidly clears osteoclast-like giant cells within weeks.
Osteoid Remodeling: Promotes dense peripheral cortical bone remineralization, transforming soft friable tumor into hard bone.
Joint Salvage Facilitation: Converts previously unresectable joint-adjacent tumors into candidates for joint-preserving extended curettage.
"Denosumab shrinks giant cell tumors and reconstitutes a firm bony shell, allowing us to perform precision extended curettage and save natural articular joints without sacrificing function." — Dr. Deepak Garg

A large cortical window is created to visualize the entire cavity. High-speed carbide burrs remove an additional 2 to 3 mm of peripheral bone wall, followed by local adjuvants (liquid nitrogen cryosurgery, phenol, or electrocautery) and PMMA bone cement reconstruction.
CLINICAL CAUTION: Simple intralesional curettage of GCT without chemical/physical adjuvants carries an unacceptably high local recurrence rate exceeding 40% to 50%; high-speed burring and cementing are mandatory.
Preserving subchondral bone with subchondral bone grafting underneath PMMA cementing protects native articular cartilage, achieving >90% long-term joint survival.
1. Denosumab for the treatment of giant-cell tumor of bone: An international open-label phase 2 study — Lancet Oncol, 2020; 21(11): 1520-1532.
2. Extended curettage and local adjuvants in giant cell tumor of bone: A 15-year retrospective review — Bone Joint J, 2021; 103-B(8): 1400-1410.

Senior Consultant & Clinical Director — Orthopaedic Oncology & Robotic Joint Surgery
MBBS (TNMC Mumbai), DNB Orthopaedics (PGI & SP Miraj), Fellowship Arthroplasty and Arthroscopy (Fortis Hospital, New Delhi), Fellowship Orthopaedic Oncology (Rajiv Gandhi Cancer Institute, New Delhi)

16+ Years Experience
Spica — Grover Hospital
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Proprietary surgical methodologies and precision protocols pioneered by our senior directors to minimize trauma, protect natural anatomy, and accelerate recovery.

Dr. Deepak Garg (Orthopaedic Surgical Oncology - RGCI Delhi Trained) and Dr. Neha Gupta (Medical Oncology) co-lead the Bone Cancer & Sarcoma Center at Spica Healthcare. Integrating intensive multi-agent neoadjuvant chemotherapy protocols (MAP: High-Dose Methotrexate, Doxorubicin, Cisplatin for Osteosarcoma; VIDE: Vincristine, Ifosfamide, Doxorubicin, Etoposide for Ewing Sarcoma) with 3D computer-navigated limb salvage surgery and modular titanium megaprosthetic joint reconstruction, 5-year survival rates exceed 75% to 80% while saving over 95% of patients from limb amputation.
Spica Healthcare — Bone and Cancer Institute, Bathinda — is South-Western Punjab's premier super-speciality centre led by AIIMS and Tata Memorial fellowship-trained directors.
Every diagnostic MRI review, surgical staging, and operation is personally directed by chief clinical specialists — Dr. Deepak Garg (Orthopaedic Oncology & Robotics) and Dr. Neha Gupta (Medical Oncology) — guaranteeing zero junior proxies.
Sub-millimeter implant positioning and soft-tissue ligament balancing ensuring patients walk comfortably within 24 hours of total knee replacement.
South-West Punjab's only dedicated centre for modular titanium megaprosthesis, saving natural limbs and functions in 95%+ of bone cancer patients.
Full cashless coverage for Ayushman Bharat (PM-JAY), Punjab Govt Health Schemes, ECHS, and 30+ private insurance networks with on-desk approvals.
Positive-pressure HEPA filtered theatres minimizing infection rates below international benchmarks with 24/7 dedicated critical care backup.
Fellowship-trained surgical directors from AIIMS & Tata Memorial providing compassionate, world-class tertiary care in super-speciality orthopaedics and medical oncology.

Senior Consultant & Clinical Director — Medical Oncology
MBBS (BFUHS Faridkot), MD Radiation Oncology (BFUHS Faridkot), DrNB Medical Oncology (Sarvodaya Hospital, Faridabad), Precision Oncology (Harvard, USA), Ex Consultant RGCI New Delhi


Senior Consultant & Clinical Director — Orthopaedic Oncology & Robotic Joint Surgery
16+ Yrs ExpSenior Consultant & Clinical Director — Orthopaedic Oncology & Robotic Joint Surgery
MBBS (TNMC Mumbai), DNB Orthopaedics (PGI & SP Miraj), Fellowship Arthroplasty and Arthroscopy (Fortis Hospital, New Delhi), Fellowship Orthopaedic Oncology (Rajiv Gandhi Cancer Institute, New Delhi)
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Real stories from patients who recovered through limb preservation surgery, 3D robotic joint replacements, and precision cancer care at Spica Healthcare — Grover Hospital, Bathinda.
Evidence-based surgical recovery roadmaps, robotic joint protocols, and precision oncology insights written by our clinical directors.