Heterotopic ossification is a condition in which there is deposition of bone around the joints. Which of the following parameters is the most useful for this condition -: (A) Serum calcium, (B) Serum phosphate, (C) Serum alkaline phosphatase, (D) Serum PTH
Answer is C. Bone scan ( Tc 99 three phase scan) is the most sensitive for early detection of heterotropic ossification. ALKALINE PHOSPHATASE and 24hr PGE2 are screening tests for heterotropic ossification. REF:Essential ohopaedics- Maheshwari- 5th edn - pg no 53.