[Indirect testimony of stress conduction from mandible to skull in maxillofacial trauma: morphological changes of temporomandibular joint disc]
There were cerebral injuries accompanied in maxillofacial high velocity projectile wound.Owing to the special anatomic relationship between skull and facial bones,the stress conduction of bone was an important factor of cerebral injury in maxillofacial wound.In this experiment,the canine mandibular regions were wounded by steel spheres,which weight 1.03g,impacting velocity at 1400m/s,to produce severely maxillofacial firearm wounds.The morphological and pathological changes of temporomandibular joint disc of wounded side were observed with light and electron microscopes.The microscopic injuries of disc,including arrangement disorder of figre,spotty edema and some fibrous dissolution,etc,were found.These results have provided an indirect evidence of injurous mechanism of the cerebral injury accompaning maxillofacial high enery misslle wound.
Tan
Y H
YH
Department of Oral and Maxillofacial Surgery, Xinqiao Hospital,The Third Military Medical College. Chongqing 630037, China.
Liu
Y Q
YQ
Zhou
S X
SX
Jiang
H T
HT
Zhang
X F
XF
Ya
Z M
ZM
Liu
Y Q
YQ
Lai
X N
XN