摘要
ＴＨＥＳＩＧＮＩＦＩＣＡＮＣＥＯＦＤＥＲＭＡＴＯＭＡＬＳＯＭＡＴＯＳＥＮＳＯＲＹＥＶＯＫＥＤＰＯＴＥＮＴＩＡＬＳＩＮＴＨＥＤＩＡＧＮＯＳＩＳＯＦＬＵＭＢＯＳＡＣＲＡＬＮＥＲＶＥＲＯＯＴＣＯＭＰＲＥＳＳＩＯＮ（李辉）（陈君长）（王坤正）（贺西京）（鱼全...
in this study, conical somatosensory evoked potentials (SEPs)following electrical stimulation of the skin of LS and SI dermatomes were recorded cephalically and observed in 19 patients with clinically proved unilateral L5 or S1 nerve root compression, and the results were compared with those of the control group or 20 healthy volunteers and showed that dermatomal SEPs were abnormal in 12 with the rate of 63%,most or which showed abnomalities or the lateral latency difference. It is concluded that dermatomal SEP is a useful addition to the diagnosis or lumbosacral nerve root compression. When the unilateral nerve root is compressed the lateral latency dirference is a most sensitive criterion for indicating abnomality.
