A trapdoor fracture is a fracture of the orbital floor where the inferiorly displaced blowout fracture recoils back to its original position and potentially entraps contents of the orbit. It is seen in children and young adults due to the elasticity of the orbital floor. These fractures may be subtle and are associated with a high risk of tissue entrapment 1.
- 1. Grant JH, Patrinely JR, Weiss AH et-al. Trapdoor fracture of the orbit in a pediatric population. Plast. Reconstr. Surg. 2002;109 (2): 482-9. Pubmed citation