- Khong the dudi va dang ngon cai Do bi liet nen kho elm nim do vat
Hinh 4.2 Vung mat cam giac cOa than kinh tru
6. 4. Liet than kinh hong to
Sau cap ctiu trat khdp hang, chom xUdng dui bi trat ra sau hay manh vd horn khdp di lech gay thUdng tdn than kinh hong to. Bien chting nav cung it gap Bieu hien lam sang la mat van dong cd ban chan va mat cam giac 6 gan chan (xem hinh 1.3).
Hinh 4.3. Vung mat cam giac cua than kinh hong to
ThUdng tdn liet thtfdng la cd nang, do than kinh cang dan va thtfdng ttf hoi phuc
6.5. Thtfdng ton than kinh hong khoeo ngoai
T h in kinh hong khoeo ngoai chay cheo ben ngoai cua cd xtfdng mac. Khi bj ch&'n thtfdng gian tiep, vi du nga gay xtfdng do sa chan xuong ho', xtfdng chay bi gay cheo xoin b cho noi 1/3 gitia-dtfdi, xtfdng mac bi gay cao d cd xtfdng mac, doi khi
xtfdng mac gay lam liet than kinh hong khoeo ngoai. Co the phat hien cap ctiu song thtfdng bo sot, khi bo bot tap di, mdi biet (xem hinh 4.4).
Hinh 4.4. Vung mat cam giac cua liet
than kinh mac
Ban chan bi do, khong nhac cao phan trtfdc ban chan khi btfdc di, nen muon khoi vap phai btfdc vong ban chan ra ngoai. Ta goi la btfdc di kieu "vat tep”.
Mot nguyen nhan ntia la bo bot cing chan dtfdi goi. Mep bot ty ep than kinh len nen xtfdng cting (xtfdng mac tai co xtfdng mac). Tai bien dieu tri nay can biet de tranh bing cach lot em mep bot tai cd xtfdng mac, ho£c cit hcl bot cho khoi chen 6p thin kinh.
Ngoai ra doi khi thin kinh hong khoeo ngoai bi dtit do vftt sic.
Ndi chung, ban chan bi do do liet than kinh hong khoeo ngo&i thtfdng khong ttf hdi phuc. Chuyen khoa se md chuyen gan de treo bin chan cao lfin.