[Characteristics of the topographic anatomical correlations of the chorda tympani, auriculotemporal nerve and anterior tympanic artery with the temporomandibular joint].
The aim of the investigation was to reveal the possibility to draw into the pathological process known as the "Costen syndrome" the formations mentioned in the title. The investigation performed by means of the craniometry method on 150 mature person skulls, that are rather evenly distributed according to their sex, age and form, and simultaneous investigation of 70 heads of corpses of persons of both sex, gave the data denying the possibility of mechanical damage of the chorda tympani, when the mandibular head is shifted backward or medially. This phenomenon can be observed at a loss of teeth and lowered bite. When the mandibular head is shifted backward, it does not involve the chorda tympani, since the nerve gets out of the osseous canal more medially to the spine of the sphenoid bone. The medial shift of the mandibular head also cannot damage the chorda tympani, since the nerve is separated from the joint by a marked osseous protrusion. At the same time the data are obtained on variations in topography of the chorda tympani at various form of the intratemporal fossa. It has been stated that when a pathological process occurs around the temporomandibular joint, the auriculotemporal nerve and the anterior tympanic artery can be involved into this process. This can produce appearance of the "Costen syndrome" components.
V G
VG
Mikheev
A G
AG
Tsybul'kin
D000328:Adult; D002508:Cephalometry; D002814:Chorda Tympani Nerve / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D008340:Mandibular Nerve / Q000033:anatomy & histology*; D013699:Temporal Arteries / Q000033:anatomy & histology*; D013704:Temporomandibular Joint / Q000033:anatomy & histology*; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000209:etiology / Q000473:pathology
Osobennosti topografoanatomicheskikh sootnosheniĭ barabannoĭ struny, ushno-visochnogo nerva i peredneĭ barabannoĭ arterii s visochno-nizhnecheliustnym sustavom.