orbital floor fracture with entrapment
The bony fragments of the fracture then return to their. Blunt orbital trauma results in a non-displaced linear fracture of the orbital floor and less commonly the medial orbital wall.
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Imaging and clinical correlations in 45 cases Orbital floor fractures OFF with entrapment require prompt clinical and radiographic.
. One fourth of the children had nauseavomiting and half had trapdoor fractures. The presence of the oculocardiac reflex. Acute indications within 24 hours for repair are ocular entrapment.
1 In the linear fracture type a break occurs in the bones of the orbital floor that permits orbital tissue the inferior rectus muscle or the inferior periorbital fat to prolapse into the fracture site during fracture formation. The ophthalmologist based on clinical examination and observation of the CT images correctly identified findings consistent with linear orbital fracture with muscle entrapment in every case. It can present with a triad of bradycardia nausea and in.
Request PDF Orbital floor fracture with entrapment. The orbital wall is commonly fractured and its incidence ranges from 18 to 50 of all cranio-facial fractures12 Numerous papers have been reported about the surgical indication surgical timing approach options and reconstruction materials for orbital blowout fractures. However there are still debates on the ideal surgical options.
The linear and the hinged fracture types. It can present with a triad of bradycardia nausea and in rare cases syncope and result in severe fibrosis of damaged and incarcerated muscle. The most common types of muscle entrapment involve the inferior rectus muscle in the case of a floor fracture and the medial rectus in a medial wall fracture.
Orbital trapdoor fractures are most commonly encountered in the pediatric population. Extraocular muscle entrapment in a nondisplaced orbital fracture although a well-known entity in pediatric trauma is atypical in adults. Extraocular muscle entrapment in a nondisplaced orbital fracture although a well-known entity in pediatric trauma is atypical in adults.
The floor is likely to collapse because the bones of the roof and lateral walls are robust. Orbital soft tissue may be incarcerated in the fracture resulting in limited ocular motility. Correct CT radiographic interpretation of entrapped fractures can be subtle and thus missed.
Orbital floor fractures OFF with entrapment require prompt clinical and radiographic recognition for timely surgical correction. Although CT scans will reveal a fracture they may not show whether a muscle is trapped. Surgical findings included a nondisplaced linear floor fracture with muscle entrapment.
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. Cho said that a clinical exam is needed to distinguish between entrapment and herniation. The most commonly entrapped material following a blowout fracture is orbital fat this alone may lead to decreased up gaze if the orbital floor is involved.
Most commonly the inferior orbital wall ie. Superior orbital fissure or orbital apex syndromes. Ad Offers an Extensive Range of Monoclonal and Polyclonal Antibodies.
Trap door orbital floor blowout fractures are classified into 2 types. The positive predictive value of nauseavomiting with a trapdoor fracture for entrapment was 833 P 0002 Fisher exact test. Another point is that the preseptal and postseptal orbital emphysema is usually seen in orbital medial wall blow-out fracture and orbital fat entrapment can also lead to enophthalmos and.
Orbital floor fractures may be managed non-operatively if they are small and do not result in functional impairment of the eye. Twenty-nine orbital floor fractures were identified. Seventeen percent of patients had entrapment of the inferior rectus.
The most common muscle to be entrapped by the fracture is the inferior rectus muscle. Or ocular hypertension caused by decreased orbital volume refractory to medical. The case illustrates the remarkable inferior rectus muscle entrapment within the fracture gap of the right orbit floor which can lead to muscle necrosis and is a kind of ophthalmology emergency.
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