Osteosarcoma is the most common bone cancer in dogs - amputation plus chemo costs $5,000-$13,000. It hits large and giant breeds, usually in the legs. Microscopic lung spread has often occurred by diagnosis. Without treatment, pain becomes severe within weeks.
Aggressive bone cancer affecting long leg bones, especially near knee and shoulder. Accounts for 85% of bone tumors in dogs. Large and giant breeds over 7 years old are at highest risk. Grows rapidly, spreads to lungs in most cases.
Progressive lameness worsening over days to weeks. Firm, painful leg lump at tumor site. Reluctance to walk, play, or bear weight. Pathological fractures from minimal trauma. Loss of appetite and lethargy as disease progresses. Worsening limp is the key warning sign.
X-rays ($150-$300) reveal sunburst bone destruction. Bone biopsy ($300-$600) confirms diagnosis. Chest X-rays or CT ($300-$800) check lung metastasis. Blood work ($100-$200) assesses surgery fitness. Average $500-$1,500.
Amputation ($2,000-$5,000) eliminates the painful tumor immediately. Chemotherapy ($3,000-$8,000) targets microscopic lung spread. Limb-sparing surgery ($5,000-$10,000) at specialty centers. Pain management alone: $100-$300/month. Average $5,000-$13,000.
Diagnosis + amputation + chemo. Palliative pain management is cheaper but extends life only 1-3 months.
Great Danes, Rottweilers, Irish Wolfhounds, and Greyhounds have the highest rates. Weight over 80 lbs is a major risk factor.
Amputation alone: 4-5 months. Amputation + chemo: 10-12 months median. Without treatment: 1-3 months.
No known prevention. Avoid early spay/neuter in large breeds - some studies link it to higher bone cancer risk.
Bone cancer treatment is expensive - here's what insurance actually pays and where the gaps are.
My mother-in-law took her German boxer to the veterinary emergency room - $1,200 in tests, no answers. A different vet solved it in minutes with $8 pills.
Research and data used to compile this profile.