The Clinical Significance Of Computerized Tomography-number In The Diagnosis Of Herniated Lumbar Disc After Operation

The Clinical Significance of Computerized Tomography-number in the Diagnosis of Herniated Lumbar Disc after Operation[Objective]The application of comparison of CTN in distinguishing sludged blood, gelatin sponge and residual nucleus pulposus after operation[Methods]In a 15 month period covering the years 2004-2006,40 patients were random distributed to gelatin spinge group and control group by the time of in-patients and underwent lumbosacral microdiscectomy at our hospital. The operations were performed by one surgeon, using a limited (3cm) skin incision. Small pieces of Gelfoam were used in gelatin spinge group, in order to help in achieving haemostasis in cases showing persistent epidural bleeding. The comparison of their CTN (computerized tomography number) of intraspinal image which be performed before operation and one week after.[Results]The CTN (computerized tomography number) of intraspinal image of 40 patients before operation were 52.94±6.43. The CTN of intraspinal image of the gelatin spinge group were 23. 40 + 3. 88 on the 7th post - operative day. The CTN of the intraspinal image of control group were 23.82±4.45 on the 7th post -operative day. The gelatin spinge group underwent paired-samples T test at before and post operation, t=23. 95, P=0. 00. The control group underwent paired-samples T test at before and post operation, t=25.01, P=0. 00. The control group and the gelatin spinge group after operation were underwent independent-samples T test, t = —...