FIGURE 1. Plain radiographs of 66-y-old woman after C4–C5 fusion using HA graft. (A) Postoperative lateral radiograph at 3 mo shows apparent radiolucent stripe (arrows) around graft and bone growth adjacent to vertebral bodies (arrowheads). (B) Postoperative lateral radiograph at 10 mo shows bridging bone (arrowhead) at dorsal aspect of graft and disappearance of radiolucent stripe.