Bone scan is especially useful for which conditions in extremity pathology?

Bone scan is especially useful for which conditions in extremity pathology?

• A. Osteoarthritis evaluation
• B. Cartilage wear assessment
• C. Occult fractures, occult infections, or monitoring bone conditions
• D. Acute ligament tears

Answer: (C)

Bone scans reveal bone metabolism and are especially valuable when conventional imaging doesn’t show the problem. In extremities, they are highly sensitive for detecting areas of increased bone turnover, which occurs with occult fractures, occult infections such as osteomyelitis, and in monitoring bone conditions over time (for example, tracking healing or metabolic bone changes). This makes them the best fit for questions about hidden fractures or infections and for evaluating how bone is behaving during treatment or healing. In contrast, osteoarthritis and cartilage wear are primarily about cartilage and joint surface changes, which are better assessed with radiographs or MRI, not bone-scanning. Acute ligament tears are soft-tissue injuries best visualized with MRI or clinical assessment rather than a bone scan.

Bone scans reveal bone metabolism and are especially valuable when conventional imaging doesn’t show the problem. In extremities, they are highly sensitive for detecting areas of increased bone turnover, which occurs with occult fractures, occult infections such as osteomyelitis, and in monitoring bone conditions over time (for example, tracking healing or metabolic bone changes). This makes them the best fit for questions about hidden fractures or infections and for evaluating how bone is behaving during treatment or healing.

In contrast, osteoarthritis and cartilage wear are primarily about cartilage and joint surface changes, which are better assessed with radiographs or MRI, not bone-scanning. Acute ligament tears are soft-tissue injuries best visualized with MRI or clinical assessment rather than a bone scan.