Kotilainen E, Alanen A, Erkintalo M, Helenius H, Valtonen S
Department of Neurosurgery, University of Turku, Finland.
Surg Neurol. 1994 Feb;41(2):98-105. doi: 10.1016/0090-3019(94)90105-8.
We evaluated the incidence of postoperative extradural hematomas by means of magnetic resonance imaging (MRI) technique in 44 patients who underwent successful surgery for a virgin lumbar disc herniation. Of these patients, 28 were treated with microdiscectomy and 16 with percutaneous nucleotomy. Postoperative hematoma proved to be a universal MRI finding in the microsurgically treated patients: hematomas were found in all patients in the microdiscectomy group. In 12 (43%) patients the hematoma extended into the dural sack. The incidence of hematomas was significantly (p = 0.001) lower in the patients treated with percutaneous nucleotomy: hematomas were detected in only 10 (63%) of the 16 patients in the nucleotomy group. The hematomas in these patients were also smaller in size and none of them connected with the dural sac. Correlation between the hematomas and clinical findings showed that the presence of a hematoma had no obvious effect on the immediate postoperative recovery of a patient.
我们采用磁共振成像（MRI）技术评估了44例初次腰椎间盘突出症手术成功患者术后硬膜外血肿的发生率。这些患者中，28例行显微椎间盘切除术，16例行经皮髓核切除术。术后血肿是显微手术治疗患者普遍的MRI表现：显微椎间盘切除术组所有患者均发现血肿。12例（43%）患者的血肿延伸至硬膜囊。经皮髓核切除术治疗患者的血肿发生率显著较低（p = 0.001）：髓核切除术组16例患者中仅10例（63%）检测到血肿。这些患者的血肿尺寸也较小，且均未与硬膜囊相连。血肿与临床结果之间的相关性表明，血肿的存在对患者术后即刻恢复无明显影响。
