Optic Canal Decompression: A Cadaveric Study of the Effects of Surgery

Onofrey, Cassandra B.; Tse, David T.; Johnson, Thomas E.; Neff, Ann G.; Dubovy, Sander R.; Buck, Billy E.; Casiano, Roy R.

doi:10.1097/iop.0b013e3180cac220

Cited by 34 publications

(32 citation statements)

References 20 publications

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“…For the patients with disorder of consciousness, some authors considered recent reports in international literature [9] that on one hand the patients should receive treatment of intensive care, on the other they should undergo cranial nerve decompression as soon as possible, and the indications for the surgery were mainly dependent on results of preoperative ophthalmologic examinations, VEP and CT scans of optic canal. The authors chose the surgical opportunity by mainly relying on results of preoperative ophthalmologic examinations, high-resolution HRCT and the Glasgow Coma Scale.…”

Section: Discussionmentioning

confidence: 99%

Study on the treatment of traumatic orbital apex syndrome by nasal endoscopic surgery

Xiao

et al. 2010

Eur Arch Otorhinolaryngol

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Orbital apex syndrome (OAS) is a complex disease caused by a variety of pathological factors, and trauma is one of the main factors/causes. Clinical data of 17 cases of traumatic OAS treated by nasal endoscopic surgery in our department from January 2002 to April 2009 were gathered and reviewed. Among them, the six patients presented with OAS after injury to the lateral wall of orbital apex. Seven other patients exhibited OAS after injury to the medial wall of orbital apex, two displayed OAS after zygomatic trauma, while OAS manifested in the other two patients with craniocerebral trauma 3 days after they had decompressive craniotomy--of them, one was blind in both eyes. In the 17 cases, 6 patients were without light sensation, 1 was blind in both eyes; the sight-chart index of eight patients was 0.1, that of three other patients was 0.1-0.2. Fifteen patients displayed eyeball movement disturbance (disorder) and cornea sensory disturbance (disorder), two were with the eyeball abducent disturbance. After the nasal endoscopic surgeries for OAS performed on the 17, the sight of the most patients was restored in varying degrees. The sight of nine patients was between 0.2 and 0.3, that of two patients was between 0.1 and 0.2, that of the other two patients was 0.1, and that of four patients remained unchanged. The eyeball movement and the cornea esthesia in 15 patients recovered from the surgeries, one patient recovered with good eyeball adducent movement and the cornea esthesia but with eyeball abducent disturbance, the other patient did not make a recovery from the eyeball immobility, cornea anesthesia and ptosis. A follow-up lasting 2 months to 2 years suggested that the 16 patients had stable recovery from the surgeries. Satisfactory results could be achieved in the treatment of traumatic OAS by nasal endoscopic surgery. From objective assessment of the therapeutic effects of traumatic OAS, it can be concluded that if a patient is diagnosed with fractures of the optic canal and the superior and medial walls of orbital apex, nasal endoscopic decompression of superior and medial walls of orbital apex and optic canal via the approach to the sphenoid and ethmoid sinuses is the most ideal operative therapy.

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Section: Discussionmentioning

confidence: 99%

Study on the treatment of traumatic orbital apex syndrome by nasal endoscopic surgery

Xiao

et al. 2010

Eur Arch Otorhinolaryngol

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“…The incidence rate ranges from 0.5% to 5% [5]. It is considered as an indirect injury that occurs from a blunt frontal trauma in which moving of the head suddenly decelerates upon impact in the region of the brow or forehead [6].…”

Section: Discussionmentioning

confidence: 99%

“…The theory of surgical decompression is that the mechanical pressure to the intracanalicular optic nerve from the hematoma or supporting structures can be relieved by reversing ischemic changes or by removing bony fragments that impinge on the nerve [2]. Although much has been written on this subject, the benefit of surgical decompression remains unclear [3][4][5]. This article presents our experience in 39 cases with traumatic optic neuropathy treated in our department by transcranial decompression of the optic canal from January 2005 to June 2013.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of transcranial surgical decompression of the optic canal as a treatment option for traumatic optic neuropathy

He¹,

Li²,

Yuan³

et al. 2015

Clinical Neurology and Neurosurgery

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“…30 The authors suggested that any hypothetical value in dural-arachnoid sheath opening must be weighed against the potential for damage to the ON caused by the surgical intervention.…”

Section: Surgical Decompressionmentioning

confidence: 99%

Traumatic Optic Neuropathy Therapy: An Update of Clinical and Experimental Studies

Zhao

Wang

2008

J Int Med Res

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Optic Canal Decompression: A Cadaveric Study of the Effects of Surgery

Cited by 34 publications

References 20 publications

Study on the treatment of traumatic orbital apex syndrome by nasal endoscopic surgery

Study on the treatment of traumatic orbital apex syndrome by nasal endoscopic surgery

Evaluation of transcranial surgical decompression of the optic canal as a treatment option for traumatic optic neuropathy

Traumatic Optic Neuropathy Therapy: An Update of Clinical and Experimental Studies

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