Le fo II fracture involves ?
MidFace fractures MidFace fractures involving the maxilla can be classified by fracture patterns as Le Fo I, II and III Le Fo I Fracture line runs above and parallel to palate Effectively seperates Alveolus and palate from the facial skeleton above Le Fo II Pyramidal in shape Passess through the root of nose, lacrimal bone, floor of orbit, upper pa of maxillary sinus and pterygoid plate Orbital floor is always involved Le Fo III Complete disjunction of the facial skeleton from the skull base Fracture line runs high through the nasal bridge, septum and ethmoid, and through the bones of orbit to the frontozygomatic suture Management Interdental or intermaxillary fixation is neccesary to re establish the proper dentoskeletal relationships, immombilize the fractured bones and ensure normal post operative occlusion Ref: Sabiston 20th edition Pgno :422
Medial wall of orbit
inferior orbital rim
Lateral pyriform rims
Mastoid process
Head and neck