Abstract: Objective To investigate the clinical effect of ultrasound-guided puncture and drainage on spinal hematoma. Methods 164 cases of hematoma in the operative area after spinal surgery admitted to Xi ‘an 521 Hospital of Ordnance Industry from January 2020 to July 2022 were selected as the research objects. The clinical treatment methods were retrospectively analyzed. According to the treatment methods, the patients were divided into ultrasound guided drainage group （n=25）, blind perforation drainage group （n=37） and conservative treatment group （n=102）. The effective rate, postoperative hospital stay and symptom duration of the three groups were compared and analyzed after operation. Results On the 1st and 5th day after operation, the effective rate of patients in ultrasound puncture and drainage group and blind puncture and drainage group was significantly higher than that in conservative treatment group （P<0.05）. The postoperative hospital stay and symptom duration of patients in ultrasound puncture drainage group and blind puncture drainage group were significantly lower than those in conservative treatment group, and the differences were statistically significant （P<0.05）. There were no significant differences in the effective rate, postoperative hospital stay and symptom duration between the two groups （P>0.05）. Conclusion Ultrasound guided puncture and drainage is safe, minimally invasive and effective, meanwhile the curative effect is significantly higher than that of conservative treatment. It is the first choice for the treatment of spinal hematoma after spinal surgery.

Key words: spine, surgical area of hematoma, ultrasound, puncture and drainage, clinical efficacy