Indirect Orbital Floor Fracture

Fractures of the orbital floor without orbital rim involvement are known as indirect orbital floor fractures pure internal floor. Direct fractures of the orbital floor can extend from orbital rim fractures while indirect fractures of the orbital floor may not involve the orbital rim. Orbital blowout fracture or indirect orbital floor fracture.

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Also called a blowout fracture an indirect orbital floor fracture typically occurs when an object such as a steering wheel fist baseball or elbow hits a.

Indirect orbital floor fracture.

The floor is likely to collapse because the bones of the roof and lateral walls are robust. Past theory held that blowout fractures were caused by increased intraorbital pressure when the impact of a blunt object rapidly occluded the orbital aperture. This is when a blow or trauma to the orbital rim pushes the bones back causing the bones of the eye socket floor buckle to downward. The floor of the eye socket ruptures or cracks resulting in a small hole in the eye socket s floor which can trap some parts of the eye muscles and its surrounding.

Indirect orbital floor fracture blowout fracture this occurs when the bony rim of the eye remains intact but the paper thin floor of the eye socket cracks or ruptures. Indirect fractures of the orbital floor are not associated with fracture of the inferior orbital rim. This fracture can also affect the muscles and nerves around the eye keeping it from moving properly and feeling normal. Indirect orbital floor fracture.

Orbital floor fractures either direct or indirect may result in diplopia inferior rectus muscle or peri muscular soft tissue entrapment with subsequent tissue ischemia fibrosis or necrosis mydriasis hypoglobus enophthalmos v2 distribution pain or paresthesia severe orbital emphysema nausea vomiting or a nonresolving oculocardic. This is usually the medial orbital floor. The cause of the fracture is thought to be from increased intraorbital pressure which causes the orbital bones to break at their weakest point. Orbit fractures are common in the context of orbital trauma.

This can cause a small hole in the floor of the eye socket that can trap parts of the eye muscles and surrounding structures. According to this theory the contents of the orbit are compressed posteriorly. An orbital blowout fracture is a traumatic deformity of the orbital floor or medial wall typically resulting from impact of a blunt object larger than the orbital aperture or eye socket most commonly the inferior orbital wall i e. Orbital floor fractures either direct or indirect may result in diplopia inferior rectus muscle or peri muscular soft tissue entrapment with subsequent tissue ischemia fibrosis or necrosis mydriasis hypoglobus enophthalmos v2 distribution pain or paresthesia severe orbital emphysema nausea vomiting or a nonresolving oculocardic.

This is a fracture of the paper thin floor of the eye socket with the bony rim surrounding the eye remaining intact.