Liza Tregillus
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        My daughter is 7 and had a unicameral bone cyst in her upper right femur; it was grafted using pediatric bone pellets and the surgeon placed 3 screws in her femur to brace it.  The cyst has recurred (it was broken originally) 2 years later but at least the bone did not break thanks to the screws.  I'm debating what to do next; who did your son's bone marrow injection?