You don’t need to know the classification of fractures in as much detail as is found in these fact sheets. The exceptions to this are: Pelvic fractures (know the classification and treatment eg. when to use interventional radiology and when to go to theatre), Paediatric orthopaedic trauma (understand Salter-Harris), Shoulder dislocation (they love reduction techniques and procedural sedation), Red joint(how do you interpret as aspirate?) and the limping child.
NB. Facts Sheets are designed to be viewed on Word and edited by yourself to suit your needs. They may open looking strange on the default iPad or iPhone viewer, and I suggest you open them in Word on those devices as they will then open normally.