Term
| Each orbit contains craniofacial bones, how many and what are they? |
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Definition
| Each orbits contains seven. Frontal,lacrimal, ethmoid, maxilla, zygomatic,sphenoid, palatine. |
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Term
| What are the two classifications of orbital fractures? |
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Definition
| Floor fractures and orbital blowouts. |
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Term
| What is the function of the fat in the orbit? |
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Definition
| To protect the eye from shock and allow the connective structures to retain the eyeball and allow for its motion, blood vessels, and the optic nerve. |
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Term
| What is the 2nd cranial nerve called? |
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Definition
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Term
| Do orbital fractures appear alone or in conjunction with other fractures? |
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Definition
| Orbital fractures can appear alone, unilaterally, bilaterally, or in conjunction with other facial fractures. |
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Term
| The orbital floor separates what? |
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Definition
| It separates the eye from the maxillary sinus. |
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Term
| What does the orbital floor extend off of? |
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Definition
| The floor is a thin extension of the maxillary and zygomatic bones. |
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Term
| What are the characteristics of orbital fractures? |
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Definition
| Diplopia; enophthalmos; periorbital fat and muscles pinched in the fracture line or herniated into the maxillary antrum; swelling and brusing. |
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Term
| what is useful in diagnosing orbital floor fractures preoperatively? |
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Definition
| CT scans and X-rays. They should also be available for reference during surgery. |
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Term
| What unique supplies and instruments will you need for a Orbital Floor fracture Repair? |
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Definition
| Internal fixation system of surgeon preference; orbital retractors; corneal shield; implant material of surgeons prefernce. |
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Term
| What are the options of implant material for this procedure? |
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Definition
| Teflon or silastic sheeting. |
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Term
| What do you use if the reduction is not stable? |
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Definition
| A rigid friction device may be implanted followed by insertion of silastic sheeting. |
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Term
| When the reduction is stable silastic sheeting is placed. Why? |
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Definition
| It is inserted over the fracture site to prevent entrapment of the orbital contents in the fracture and support the globe. |
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Term
| Who should you consider notifying before surgery? |
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Definition
| Notify the radiology department of the possible need of intraoperative X-rays. |
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Term
| Why would a traction stitch be useful in this procedure? |
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Definition
| To aid in exposure it may be placed between the lower lashes and the incision site. |
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Term
| What instrument is used to dissect through the infraorbital fat to expose the infraorbital rim? |
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Definition
| Curved tenotomy scissors and Adson tissue forceps. |
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