anatomical orbital pem teb phaj

Nyob rau hauv lub cev, lub orbit yog kab noj hniav los yog lub qhov (socket) ntawm lub pob txha taub hau nyob rau hauv uas lub qhov muag thiab nws appendages nyob."Orbit" tuaj yeem xa mus rau lub pob txha pob txha.Qhov ntim ntawm lub orbit nyob rau hauv cov neeg laus yog 30 milliliters, qhov muag occupies 6.5 ml ntawm tag nrho cov.Cov ntsiab lus ntawm lub orbital muaj xws li lub qhov muag, lub orbital thiab retrobulbar fascia, cov nqaij ntshiv extraocular, cranial hlab ntsha, hlab ntsha, rog, lub lacrimal caj pas nrog nws lub hnab thiab duct, daim tawv muag, medial thiab lateral palpebral ligaments, xyuas ligaments, suspensory ligament, septum. , ciliary ganglion thiab luv ciliary qab haus huv.

Lub orbits yog conical zoo los yog plaub-sided pyramidal kab noj hniav, qhib rau lub ntsej muag midline thiab taw tes rov qab rau hauv lub taub hau.Lub hauv paus, lub apex thiab plaub phab ntsa ua rau txhua lub orbit.

Bony phab ntsa ntawm cov kwj dej hauv tib neeg yog mosaic ntawm xya lub embryologically txawv cov qauv, muaj cov pob txha zygomatic tom qab, cov pob txha sphenoid, nrog nws cov tis tsawg dua tsim cov kwj dej optic thiab nws cov tis loj dua ua rau sab nraub qaum ntawm cov txheej txheem pob txha orbital. , cov pob txha maxillary inferiorly thiab medially uas, nrog rau cov pob txha lacrimal thiab ethmoid, tsim cov phab ntsa nruab nrab ntawm cov kwj dej orbital.Cov kab mob ethmoid yog qhov nyias nyias, thiab tsim cov qauv hu ua lamina papyracea, cov pob txha mos tshaj plaws hauv pob txha taub hau, thiab ib qho ntawm cov pob txha feem ntau raug mob hauv orbital trauma.

Cov phab ntsa sab nraud yog tsim los ntawm cov txheej txheem pem hauv ntej ntawm zygomatic thiab ntau dua tom qab los ntawm cov phaj orbital ntawm ntau dua tis ntawm sphenoid.Cov pob txha sib ntsib ntawm zygomaticosphenoid suture.Lub phab ntsa sab nraud yog phab ntsa tuab tshaj plaws ntawm lub orbit, nws yog qhov nthuav dav tshaj plaws, yog li yooj yim dua los ntsib cov teeb meem nyuaj rau blunt force trauma.

Inferior orbital wall fracture yog cov pob txha feem ntau hauv orbital blowout fracture, uas feem ntau ua rau muaj teeb meem xws li enophthalmic invagination, ocular txav tsis meej, diplopia thiab ocular displacement, uas cuam tshuam rau kev ua haujlwm thiab cov tsos.Rau orbital blowout fractures, kev phais yuav tsum tau ua kom sai li sai tau thaum lub intraocular invagion yog ntau tshaj 2 hli thiab cov pob txha pob txha loj dua li tau lees paub los ntawm CT.Hauv kev kho cov pob txha pob txha, cov khoom siv feem ntau siv xws li cov pob txha pob txha hydroxyapatite, cov khoom siv hluavtaws polyethylene porous, hydroxyapatite complex thiab titanium hlau cov ntaub ntawv.Rau orbital kho cov khoom cog xaiv, cov khoom cog zoo tshaj plaws yuav tsum muaj cov yam ntxwv hauv qab no: kev sib raug zoo lom neeg zoo, yooj yim rau cov duab thiab muab tso rau hauv qhov chaw orbit phab ntsa, yooj yim tuaj yeem khaws nws cov duab txhawb nqa orbital cov ntsiab lus kom tswj tau qhov muag ib txwm, tuaj yeem hloov pauv. qhov uas ploj lawm ntawm cov ntsiab lus orbital thiab nthuav dav lub orbital kab noj hniav, ntim CT txhim kho kom yooj yim rau kev soj ntsuam tom qab.Txij li thaum titanium mesh yog ib qho yooj yim rau cov duab thiab muaj fixation zoo, nws tsis muaj rhiab heev, carcinogenesis thiab teratogenicity nyob rau hauv kev sib cuag nrog tib neeg lub cev, thiab nws yuav ua tau zoo ua ke nrog cov pob txha cov ntaub so ntswg, epithelium thiab connective cov ntaub so ntswg, yog li nws yog cov khoom hlau zoo tshaj plaws nrog biocompatibility. .

Preformed Orbital Phaj yog tsim los ntawm CT scan cov ntaub ntawv.Cov phiajcim no muaj cov kev cog qoob loo uas ze ze ze ntawm qhov chaw ntawm lub cev ntawm tib neeg orbital hauv pem teb thiab cov phab ntsa nruab nrab thiab yog npaj rau siv rau hauv kev xaiv craniomaxillofacial trauma.Preformed peb-dimensional zoo: Tsim los rau me me dabtsi yog khoov thiab txiav uas txo cov sij hawm uas yuav tsum tau rau contour phaj.Contoured phaj npoo: Rau yooj yim phaj ntxig los ntawm daim tawv nqaij incision thiab tsawg cuam tshuam ntawm phaj thiab ib puag ncig cov ntaub so ntswg.Segmented tsim: Txhawm rau kho qhov loj me rau qhov chaw nyob ntawm orbital topography thiab tswj cov phaj contoured ciam teb nrog cov npoo ntse tsawg.Rigid zone : Restores cov duab mus rau pem hauv ntej orbital pem teb los pab tswj txoj hauj lwm ntawm lub ntiaj teb.kev daws teeb meem rau orbital pem teb kho thiab reconstruction.