Stephanie
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        My 8 mo. old daughter is facing craniofacial surgery in two weeks.  She has sagittal synostosis.  We are terrified, but we know it must be done!  We are under the impression that this will be a "one-time" surgery ordeal.  What circumstances would warrant another surgery?