To determine if a minimally invasive approach to lumbar microdiscectomy reduces post-operative pain, length of hospital stay, or frequency of complications we retrospectively compared medical records of single level microdiscectomy patients by a single surgeon performed using a traditional open approach versus a minimally invasive approach. Thirty-five patients were in the open group: 63% male, average age 41.2 years, and 31 patients were in the minimally invasive group: 68% male, average age 42.1 years. There was no difference in surgical time or blood loss between the open and minimally invasive groups: 84.1 versus 76.8 minutes and 51.4 versus 69.7 mL, respectively. There were no significant complications intraoperatively or within the 30 day post-op period for either group. The average dose of intravenous morphine taken was 12.9 mg for the minimally invasive group and 15.7 mg for the open group (P=0.04). The average dose of hydrocodone was 13.4 mg for the minimally invasive group and 20.9 mg for the open group (P=0.03). The open group took an average of 11.7 mg oxycodone, the minimally invasive none. 45.2% of patients in the minimally invasive group were discharged on the same day as surgery compared to 5.75% in the open group (P=0.001). Microdiscectomy was performed safely and effectively through a minimally invasive expanding retractor system and operating microscope. Surgical times, blood loss, complications, and outcome were similar to a traditional open microdiscectomy while pain medication requirements and hospitalization were significantly less.
Ninety-six children received morphine 0.1 mg/kg (n = 47) or ketorolac 1 mg/kg (n = 49) intravenously (IV) in a prospective, randomized, double-blind fashion, after tonsillectomy. Recovery variables and complications were recorded while subjects were in the hospital and parent(s) were contacted 24 h and 14 days after surgery. There were no differences in demographics, surgical management, awakening time, oxygen requirements, or time to readiness for postanesthesia care unit (PACU) discharge or discharge home between the two groups. Ketorolac subjects had fewer emetic episodes than morphine subjects (median 1 vs 3; P = 0.006) and were less likely to have more than two episodes of emesis after PACU discharge (9/49 vs 22/47; P = 0.007). Ketorolac subjects had more major bleeding (bleeding requiring intervention; 5/49 vs 0/47, one-tailed P = 0.03) and more bleeding episodes (0.22 episodes/subject vs 0.04 episodes/subject, P < 0.05) in the first 24 h after surgery, but no greater overall incidence of bleeding than the morphine subjects. In children having tonsillectomy, ketorolac, compared to morphine, reduced the number of emetic episodes after PACU discharge, but did not hasten awakening, readiness for PACU discharge or discharge home, and increased the likelihood of major bleeding in the first 24 h after surgery.
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