31. Doctors did a bone graft and inserted a screw to repair a fracture in Fisher's right foot. 32. A team doctor recommended Fisher undergo a bone graft and have a screw inserted in his foot. 33. Cancellous bone grafts are of little help. 34. It started with a season ending collarbone injury, a break that required a bone graft operation in London. 35. It further relates that he had " bone graft surgery on October 26 to repair injured wrist ." 36. Recent advances have seen the introduction of platelet derived growth factor ( PDGF ) infused bone graft material. 37. Cleaves was scheduled to have a bone graft and a pin inserted during surgery Monday evening, Izzo said. 38. A state Public Health Department report rejected Algeri's contention that X-rays showed that new bone grafts had failed. 39. Cleaves underwent a bone graft and had a pin inserted during surgery Monday evening, Dr . Herbert Ross said. 40. But the nature of the regenerative mechanism had remained a mystery, and results of such bone grafts were uneven.
