الفهرس 
Arabic SummaryOnly 14 pages are availabe for public view
 |  | from | 98 |  |  |
| | | from | 98 | | |
Abstract
- 69 -
different injuries to nerves are manifested by macroscopic and rr:icroscopic chan8es.
Compressio!1 exerted severe damage to the continiuty of nerve fibers and l~~eness, [ractually iuc_eased as the tion of compression increased.
Perineural inj eotio. of turpentine oil ca1.wed severe er:1Il a!ld suppurative il1 .. fl&.Jilllation J days P08t injection
a high degre e of lnzneness. ii;xt ensi ve
~feration of the COl1~cctive tissue of the epinet~ium
h .:’orTIll3.tion of rnatu..re c.ranulation tissue shm’ling j sola~ed dIG,,) of necrosed and hyalinize-d cOllagen v/ere abservecl onth3 followins injection.
?oi.:lt firing and blistering re3ul ted in severe inflama¬chaxacterized by a high degree of lameness. subsided gradually until it dj.sappec:.red y;j.thin 4 \”3eks. The promincn’c feature after 2 months is the rich oliferation of ne~ vessels with vascularization of the ineLU’iu..”Il and perineuriu.”u, v/hile the ne.:. ve a.xons wore normal except sporadic demylination.
Complete neurotomy alone resulted in sliGht fihrosis Beat of cutting the nerve and the conduction time clear 1-.;5-2 months followine- neurotomy.
Perineural injection of absolute ethyl alcohol before lete neurot omy revealed that more disenticrat ion and the nerve fibri.ls at the pro::;dmal segment t segment was totally destroyed and repl-
d bJ connective tisDue.
Tr~~latic laceration lead to partial disentegration of G nerve fibers situated between the healthy ones.
not complete after J months as these fibers
connective tissue.
Local epplication of sulphanilG~ide powder lead to the charactrestic changes, the blood vessels in the rye sheath suffered chronic vasculitis where the wall of e vessels is replaced by connective tissue. Other blood essels still reve~led neutrophio infiltration.
End-to-end anastolllosiG using 4/0 silk revealed that :¬months~ the central segment of the nerve showed that the majorty of nerve fioers are of more or less normal arc hi tectu.re while the minority of nerve fibers showed mild degree of loccl dcmylination •
• At 10 months t the findings were more 0 .•. less the same e~ept some individual observation in the form of relatively thickened epineurium in an individual cass. ’This proliferation cl’ dense C onnecti ve tis:..;ue encroaches on the stu.rnps of seme ne:rve fibel’s fibrozine thei.L course.