Anatomical orbital bene farantin

A cikin jiki, kewayawa ita ce rami ko soket na kwanyar da ido da abubuwan da ke cikinsa suke. "Orbit" na iya komawa ga soket na kashi. Adadin kewayawa a cikin babban mutum shine milliliters 30, ido ya mamaye 6.5 ml na duka. Abubuwan da ke cikin orbital sun haɗa da ido, orbital da retrobulbar fascia, tsokoki na waje, jijiyoyi na cranial, tasoshin jini, mai, glandar lacrimal tare da jakarsa da duct, eyelids, medial da ligaments na palpebral na gefe, duba ligaments, ligament na dakatarwa, septum, ciliary ganglion.

Ƙwayoyin kewayawa siffa ce ta conical ko kogon pyramidal masu gefe huɗu, buɗe zuwa tsakiyar layin fuska kuma suna nuna baya cikin kai. Tushe, koli da bango huɗu sun haɗa kowane kewayawa.

Bony bango na orbital canal a cikin mutane wani mosaic ne guda bakwai daban-daban embryologically tsarin, kunshi zygomatic kashi a kaikaice, da sphenoid kashi, tare da karami reshe forming na gani canal da mafi girma reshe forming a kaikaice na baya rabo na kasusuwa orbital tsari, da maxillary kashi mafi ƙasƙanci, tare da mediamoid form, tare da mediamoid. tsakiya bango na orbital canal. Kwayoyin iska na ethmoid suna da sirara sosai, kuma suna samar da wani tsari da aka sani da lamina papyracea, mafi ƙasƙanci tsarin ƙashi a cikin kwanyar, kuma ɗaya daga cikin ƙasusuwan da aka fi karye a cikin rauni na orbital.

An kafa bangon gefe ta hanyar tsarin gaba na zygomatic kuma mafi na baya ta hanyar farantin orbital na babban reshe na sphenoid. Kasusuwa sun hadu a suture na zygomaticosphenoid. Katangar gefe ita ce katangar mafi kauri na kewayawa, ita ce ta fi kowa fallasa, don haka ya fi sauƙi a gamu da rauni sosai ga rauni mai ƙarfi.

Karyewar bangon da ke ƙasa shine mafi yawan karaya a cikin karaya ta orbital busa, wanda sau da yawa yakan haifar da rikice-rikice kamar invagination na enophthalmic, rikicewar motsi na ido, diplopia da ƙaurawar ido, wanda ke tasiri sosai ga aiki da bayyanar. Don karyewar busa orbital, yakamata a yi tiyata da wuri-wuri lokacin da mamayewar intraocular ya fi 2mm kuma yankin karaya ya fi girma kamar yadda CT ya tabbatar. A cikin gyaran karaya na orbital, kayan aikin wucin gadi da aka saba amfani da su sun hada da kashin wucin gadi na hydroxyapatite, kayan roba na polyethylene polymer porous, hadadden hydroxyapatite da kayan karfe titanium. Domin orbital gyara implant abu zabi, manufa implant kayan kamata da wadannan halaye: mai kyau nazarin halittu karfinsu, sauki siffa da kuma sanya shi a cikin orbit bango lahani sassa, sauƙi iya riƙe da siffar goyon bayan orbital abinda ke ciki don kula da al'ada ido matsayi, na iya maye gurbin da bace na orbital abinda ke ciki da kuma kara girma da orbital rami girma, girma CT haɓakawa don sauƙaƙe postoperative lura. Tun da ragar titanium yana da sauƙi don siffa kuma yana da gyare-gyare mai kyau, ba shi da hankali, carcinogenesis da teratogenicity a cikin hulɗar jikin mutum, kuma ana iya haɗa shi da kyau tare da nama na kasusuwa, epithelium da haɗin haɗin gwiwa, don haka shine mafi kyawun kayan ƙarfe tare da biocompatibility.

An ƙera Preformed Orbital Plates daga bayanan CT scan. Waɗannan faranti sun ƙunshi ƙwanƙwasa waɗanda ke da kusanci kusa da yanayin yanayin yanayin jikin mutum na orbital bene da bangon tsakiya kuma an yi nufin amfani da su a cikin zaɓaɓɓen rauni na craniomaxillofacial. Siffa mai girma uku da aka riga aka tsara: An ƙirƙira don ƙaramin lanƙwasa da yanke wanda ke rage adadin lokacin da ake buƙata don kwankwasa farantin. Gefen farantin kwane-kwane: Don sauƙin shigar faranti ta hanyar yankan fata da ƙarancin tsangwama tsakanin farantin da kewayen nama mai laushi. Ƙirar da aka raba: Don keɓance girman faranti don magance yanayin yanayin orbital da kuma kiyaye iyakokin faranti tare da ƙarancin gefuna masu kaifi. Yanki mai tsauri: Yana maido da siffa zuwa bene na baya don taimakawa kiyaye daidaitaccen matsayi na duniya. m mafita ga orbital bene gyara da kuma sake ginawa.