• Christian Morgenstern, Carlos Ramírez-Paesano, Albert Juanola Galcerán, and Rudolf Morgenstern.
• Morgenstern Institute of Spine, Centro Médico Quirón Teknon, Barcelona, Spain. Electronic address: info@morgenstern.es.
• World Neurosurg. 2021 Sep 1; 153: e473-e480.

ObjectiveTo evaluate efficacy in reducing postoperative pain and opioid analgesia of a novel interdisciplinary strategy combining preoperative thoracolumbar interfascial plane (TLIP) block and percutaneous/endoscopic transforaminal lumbar interbody fusion surgery and to determine time to first postoperative ambulation and hospital length of stay.MethodsIn this retrospective review, 42 patients who underwent elective single-level percutaneous/endoscopic transforaminal lumbar interbody fusion surgery between 2015 and 2021 were divided into 2 groups: TLIP group with 17 patients who underwent TLIP block and non-TLIP group with 25 patients. Both groups received the same postoperative analgesia with morphine as patient-controlled rescue medication. Visual analog scale and Oswestry Disability Index scores were evaluated. Statistical evaluation was performed with Student t test.ResultsIn contrast to the non-TLIP group, in the TLIP group, postoperative mean visual analog scale back score and mean Oswestry Disability Index score significantly decreased from 6.6 to 3.3 (P < 0.01) and 32.8 to 23.6 (P < 0.01), respectively, at hospital discharge. No differences were found between the groups at 1 month. Overall mean follow-up time was 29 ± 18 months (range, 3-78 months). Patients in the non-TLIP group were administered a median postoperative 24-hour morphine dose equivalent of 23 mg (range, 8-31 mg), while patients in the TLIP group did not require opioid analgesia (P < 0.01). Patients in the TLIP group started postoperative ambulation at a median of 4.1 hours (range, 2.5-26 hours) with a median hospital length of stay of 24 hours (range, 20-48 hours) (P = 0.112).ConclusionsTLIP block significantly improves patient outcome at hospital discharge after transforaminal lumbar interbody fusion surgery without postoperative administration of opioids. A prospective study is recommended to confirm our preliminary results.Copyright © 2021 Elsevier Inc. All rights reserved.

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