Osteosarcoma is the most common primary bone cancer in dogs, causing severe pain and rapid metastasis that requires early recognition, aggressive pain management, and honest prognosis discussion.
Osteosarcoma bone pain is among the most severe pain in veterinary medicine - the bone is being destroyed from within and pressure from the tumor is relentless. Early recognition of limb pain in large breeds and prompt investigation saves dogs from prolonged severe bone pain before diagnosis. Amputation provides dramatic and near-immediate pain relief - dogs awaken from surgery already more comfortable than they were before. Three-legged large breed dogs adapt remarkably well and quality of life is good in the months following amputation. Palliative radiation provides meaningful pain control for owners who choose non-amputation management.