Heterotopic bone formation involving wrist and fingers in brain-injured patients: A report of three cases

Periarticular new bone formation is frequently observed in patients with prolonged coma, usually affecting large joints such as shoulders, elbows and hip joints. Unusual locations of PNBF involving the wrist and the inter-phalangeal joints arc described in three patients who were in coma due to anoxic or traumatic brain insults. In each case flexor ankylosing positions were the end result.