Clinical application of microchannel technique in intraspinal tumor resection

English Keywords:Microchannel technique  Intraspinal tumor  Resection

English Abstract:

  【Abstract】 Objectives: To explore the clinical application and efficacy of the microchannel technique in intraspinal tumor resection. Methods: A retrospective analysis was conducted on the clinical data of 20 patients who underwent intraspinal tumor resection at Dingxi People′s Hospital from January 2004 to December 2024. Patients were divided into two groups of observation group and control group according to surgical approach. The observation group(n=9, 3 males and 6 females, aged 57.3±3.7 years) underwent percutaneous microchannel approach resection surgery, and the neurological function gradings before operation were grade Ⅰ 2 cases, grade Ⅱ 4 cases, grade Ⅲ 2 cases, and grade Ⅳ 1 case; The control group(n=11, 5 males and 6 females, aged 56.4±4.4 years) received traditional posterior en bloc laminectomy resection, and the neurological function gradings before operation were grade Ⅰ 3 cases, grade Ⅱ 5 cases, and grade Ⅲ 3 cases. There was no statistical difference in the preoperative general information between the two groups(P>0.05). Intraoperative blood loss, operative time, length of hospital stay, postoperative 3d visual analogue scale(VAS) score, neurological recovery rate at 3 months postoperatively, and tumor recurrence rate at 1 year postoperatively were compared between the two groups. Results: There was no significant difference in operative time between the two groups(P>0.05). The observation group was significantly less in intraoperative blood loss(53.1±8.1mL vs 100.5±10.1mL), shorter in length of hospital stay(7.0±1.7d vs 10.2±2.6d), lower in VAS score at postoperative 3d(3.0±0.6 vs 4.1±1.0), all with statistical differences(P<0.05). There were no significant differences in the neurological recovery rate[Observation group(8/9, 88.89%) vs Control group(9/11, 81.82%)] at 3 months postoperatively or the 1-year tumor recurrence rate[Observation group(0/9, 0.00%) vs Control group(1/11, 9.09%)](P>0.05). No serious surgical complications occurred in either group. Conclusions: The application of microchannel technique in intraspinal tumor resection can achieve the same short-term clinical efficacy as the traditional surgical approach. However, the application of microchannel technique can significantly reduce intraoperative blood loss, alleviate the immediate postoperative pain of patients, and shorten the hospital stay.