Thoai hoa khop la ton thuong thoai hoa cua sun khop, dac trung boi qua trinh mat sun khop va hinh thanh to chuc xuong tan tao canh khop. Voi thoai hoa cot song noi chung va cot song co noi rieng, qua trinh lao hoa xay ra o dia dem va to chuc xuong dot song. Day la mot benh khop thuong gap nhat o nguoi co tuoi gay dau va han che van dong. Chan doan thoai hoa cot song co: benh nhan dau moi kieu co hoc, dau tang khi van dong, giam khi nghi ngoi; han che van dong cot song co: kho cui, ngua, nghieng, quay co; kem tieng lac rac khi van dong cot song. Thoai hoa cot song co co the khong co trieu chung ma chi co hinh anh tren Xquang. Chup Xquang thay co hinh anh tam chung cua thoai hoa: hep khe khop, dac xuong duoi sun va moc gai xuong (mo xuong).
Cac bien chung co the gap cua benh bao gom cac trieu chung chen ep than kinh gay dau doc tu co xuong vai va canh tay mot hoac ca hai ben; chen ep cac dong mach dot song gay dau dau, chong mat; han huu co chen ep tuy, bieu hien bang yeu, dau tu chi, di lai kho khan hoac liet khong van dong duoc.
Truong hop cua bac, dau dau chong mat co the do thoai hoa gay chen ep dong mach dot song. Tuy nhien can luu y o nguoi cao tuoi co the mac cac benh khac dan den dau dau chong mat nhu tang huyet ap hoac ha huyet ap, xo vua mach mau, roi loan mo mau, roi loan tien man kinh (o nu gioi), hoac tai bien mach nao hay u nao... Chinh vi vay bac nen den cac co so y te de kham toan dien, chan doan va dieu tri dung benh.
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