
Medically Reviewed By
Dr. Deepak Garg ( Orthopaedic Oncology & Robotic Joint Surgery)
An authoritative orthopaedic surgical oncology review on primary malignant cartilage-producing bone tumors (Chondrosarcoma), detailing histologic grading (Grade 1 vs 2/3 vs Dedifferentiated), pelvic internal hemipelvectomy, computerized navigation, and why radical R0 surgery remains the sole curative modality.
CRITICAL CLINICAL RED FLAG: Any expanding, deep, dull bony ache or palpable rock-hard mass in the pelvis, proximal femur, or ribs in an adult over 40 displaying "popcorn" or "rings-and-arcs" calcifications on plain radiography mandates urgent specialist orthopaedic oncology evaluation.
Chondrosarcomas represent the second most common primary malignant bone tumor in adults. Characterized by the production of chondroid matrix, their biological behavior varies dramatically across histological subtypes:
Grade 1 (Atypical Cartilaginous Tumor): Locally aggressive with virtually zero metastatic risk; select extremity lesions may be managed with extended intralesional curettage and cryotherapy.
Grade 2 & 3 Conventional Chondrosarcoma: Highly aggressive with 15–50% metastatic potential (predominantly lungs); mandates radical wide en-bloc resection with clear margins.
Dedifferentiated Chondrosarcoma: A devastating biphasic tumor where low-grade cartilage abruptly transforms into high-grade osteosarcoma or undifferentiated pleomorphic sarcoma.
High-resolution contrast MRI delineates intraosseous marrow replacement, lobular hyperintensity on T2-weighted sequences, and soft tissue extraosseous expansion. Thin-slice CT confirms cortical endosteal scalloping >2/3 cortical thickness, periosteal breach, and calcified matrix.
"Because chondrosarcoma produces abundant hyaline extracellular matrix lacking adequate vascularity, it is fundamentally chemo- and radio-resistant; complete 3D surgical extirpation is the patient's only chance for cure." — Dr. Deepak Garg

Pelvic chondrosarcomas (Enneking Zones I, II, III, and IV) represent the greatest surgical challenge:
Internal Hemipelvectomy: En-bloc resection of the ilium, periacetabular socket, or pubic rami while preserving the femoral nerve, sciatic nerve, and lower extremity.
3D-Printed Custom Titanium Pelvic Implants: Computer-navigated osteotomy guides ensure sub-millimeter margin accuracy and immediate anatomical restoration of the hip center of rotation.
Modular Saddle & Cone Megaprostheses: Provide biomechanical stability, allowing full weight-bearing recovery within 8 to 12 weeks.
CLINICAL CAUTION: Intralesional curettage of Grade 2 or 3 Chondrosarcoma carries a devastating local recurrence rate exceeding 70%; wide en-bloc margin clearance is strictly required.
Up to 50% of conventional and dedifferentiated chondrosarcomas harbor somatic mutations in Isocitrate Dehydrogenase 1 or 2 (IDH1/IDH2). Targeted small-molecule inhibitors (Ivosidenib) are actively entering clinical trials for unresectable metastatic cases.
1. Surgical management of pelvic chondrosarcoma: Functional and oncological outcomes of 150 consecutive cases — Bone Joint J, 2021; 103-B(7): 1290-1300.
2. NCCN Clinical Practice Guidelines in Oncology: Bone Cancer (Version 1.2024) — National Comprehensive Cancer Network, 2024.

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
Request a priority OPD appointment or second opinion on your scans.
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)
Free OPD screening camps, director-led masterclasses, and national oncology representations by Spica Healthcare.
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.