Transfemoral Amputation due to Osteosarcoma CAT

Question 1

What is osteosarcoma?

Answer 1

• 2nd most common primary bone tumor
• Highly malignant cancer
• Begins in medullary cavity of a bone

Question 2

Demographics for osteosarcoma

Answer 2

• Primarily affects young children (especially males), adolescents, and young adults under 30
• Peak incidence is during growth spurts

Question 3

Risk factors for secondary osteosarcoma

Answer 3

• Paget’s disease
• Osteoblastoma
• Giant cell tumor
• Chronic osteomyelitis

Question 4

Clinical presentation for osteosarcoma

Answer 4

• Pain and swelling in the extremity
• Pain worsening at night or w/ exercise
• Weakness

Question 5

Which region has the highest incidence of osteosarcomas?

Answer 5

50% in the knees

Question 6

Labs/imaging for osteosarcoma

Answer 6

• X-ray, MRI, and scintigraphy to determine size, location of tumor
• Tissue biopsy of the tumor

Question 7

PT management post-op amputation

Answer 7

• Preprosthetic training (ROM, positioning, strengthening, desensitization)
• Pain management