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Post-operative Epidural Analgesia After Minimally Invasive Lumbar Decompression and Fusion

Information source: University Health Network, Toronto
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Low Back Pain

Intervention: Bupivicaine, Hydromorphone (Drug); Saline Placebo (Drug)

Phase: N/A

Status: Completed

Sponsored by: University Health Network, Toronto

Official(s) and/or principal investigator(s):
Stephen Choi, MD, Principal Investigator, Affiliation: Resident Physician, Deparment of Anesthesia, University of Toronto
Richard T Brull, MD, Principal Investigator, Affiliation: Department of Anesthesia, University Health Network, Toronto Western Hospital
Yoga R Rampersaud, MD, Principal Investigator, Affiliation: Deparment of Surgery, Division of Orthopedics, University Health Network, Toronto Western Hospital
Vincent WS Chan, MD, Study Director, Affiliation: Department of Anesthesia, University Health Network, Toronto Western Hospital
Paul S Tumber, MD, Study Director, Affiliation: Department of Anesthesia, University Health Network, Toronto Western Hospital


Minimally invasive (MIS) lumbar decompression and fusion is a new procedure that aims to reduce post-operative pain, opioid consumption and related side effects, and length of hospital stay. Current research demonstrates a modest improvement in these areas beginning on the third post-operative day. MIS fusion, however, incurs significant cost as the average time of the procedure is approximately one third greater (from 148 minutes to 191 on average). Epidural analgesia has clearly demonstrated benefits for conventional open laminectomy. In order to fully maximize the benefits of an MIS technique, early post-operative analgesia/pain must be improved. The aim of this study is to combine two techniques to ultimately improve patient outcomes and satisfaction. This will be a randomized trial involving 32 patients undergoing MIS decompression and fusion with half the study group receiving active epidural and IV-PCA and the other half receiving epidural placebo and IV-PCA. The hypothesis is that epidural analgesia will reduce post-operative opioid consumption, improve pain scores, and decrease time to ambulation as well as discharge from hospital after MIS decompression and fusion.

Clinical Details

Official title: Post-operative Epidural Analgesia After Minimally Invasive Lumbar Decompression and Fusion

Study design: Allocation: Randomized, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Primary outcome: Reduction in opioid consumption in the first 48 hours post-operatively

Secondary outcome:

Reduction in VRS pain scores

Reduction in total opioid consumption

Reduction in opioid related side effects

Reduction in time to discharge


Minimum age: 18 Years. Maximum age: 80 Years. Gender(s): Both.


Inclusion Criteria:

- patients scheduled to undergo minimally invasive lumbar decompression and fusion at

the Toronto Western Hospital

- both genders

- ASA I to III

- BMI less than 35

Exclusion Criteria:

- refuses treatment randomization

- inability to give informed consent

- language barrier

- local anesthetic allergy

- allergy to shellfish or eggs

- bleeding diathesis

- sickle cell disease or trait

- pregnancy

- drug addiction

- psychiatric history

- severe intercurrent illness (ASA IV or V)

- patients requiring anesthesia of other surgical sites

Locations and Contacts

Toronto Western Hospital, University Health Network, Toronto, Ontario M5T 2S8, Canada
Additional Information

Related publications:

Kundra P, Gurnani A, Bhattacharya A. Preemptive epidural morphine for postoperative pain relief after lumbar laminectomy. Anesth Analg. 1997 Jul;85(1):135-8.

Schenk MR, Putzier M, K├╝gler B, Tohtz S, Voigt K, Schink T, Kox WJ, Spies C, Volk T. Postoperative analgesia after major spine surgery: patient-controlled epidural analgesia versus patient-controlled intravenous analgesia. Anesth Analg. 2006 Nov;103(5):1311-7.

Turner A, Lee J, Mitchell R, Berman J, Edge G, Fennelly M. The efficacy of surgically placed epidural catheters for analgesia after posterior spinal surgery. Anaesthesia. 2000 Apr;55(4):370-3.

Rigg JR, Jamrozik K, Myles PS, Silbert BS, Peyton PJ, Parsons RW, Collins KS; MASTER Anaethesia Trial Study Group. Epidural anaesthesia and analgesia and outcome of major surgery: a randomised trial. Lancet. 2002 Apr 13;359(9314):1276-82.

Gottschalk A, Freitag M, Tank S, Burmeister MA, Kreil S, Kothe R, Hansen-Algenstedt N, Weisner L, Staude HJ, Standl T. Quality of postoperative pain using an intraoperatively placed epidural catheter after major lumbar spinal surgery. Anesthesiology. 2004 Jul;101(1):175-80.

Blumenthal S, Min K, Nadig M, Borgeat A. Double epidural catheter with ropivacaine versus intravenous morphine: a comparison for postoperative analgesia after scoliosis correction surgery. Anesthesiology. 2005 Jan;102(1):175-80.

Ray CD, Bagley R. Indwelling epidural morphine for control of post-lumbar spinal surgery pain. Neurosurgery. 1983 Oct;13(4):388-93.

Cohen BE, Hartman MB, Wade JT, Miller JS, Gilbert R, Chapman TM. Postoperative pain control after lumbar spine fusion. Patient-controlled analgesia versus continuous epidural analgesia. Spine (Phila Pa 1976). 1997 Aug 15;22(16):1892-6; discussion 1896-7.

Fisher CG, Belanger L, Gofton EG, Umedaly HS, Noonan VK, Abramson C, Wing PC, Brown J, Dvorak MF. Prospective randomized clinical trial comparing patient-controlled intravenous analgesia with patient-controlled epidural analgesia after lumbar spinal fusion. Spine (Phila Pa 1976). 2003 Apr 15;28(8):739-43.

Park Y, Ha JW. Comparison of one-level posterior lumbar interbody fusion performed with a minimally invasive approach or a traditional open approach. Spine (Phila Pa 1976). 2007 Mar 1;32(5):537-43.

Podichetty VK, Spears J, Isaacs RE, Booher J, Biscup RS. Complications associated with minimally invasive decompression for lumbar spinal stenosis. J Spinal Disord Tech. 2006 May;19(3):161-6.

Sandhu NS, Sidhu DS, Capan LM. The cost comparison of infraclavicular brachial plexus block by nerve stimulator and ultrasound guidance. Anesth Analg. 2004 Jan;98(1):267-8.

Brull R, McCartney CJ, Chan VW, El-Beheiry H. Neurological complications after regional anesthesia: contemporary estimates of risk. Anesth Analg. 2007 Apr;104(4):965-74. Review.

Foley KM. The treatment of cancer pain. N Engl J Med. 1985 Jul 11;313(2):84-95. Review.

Pollard CA. Preliminary validity study of the pain disability index. Percept Mot Skills. 1984 Dec;59(3):974.

Starting date: February 2008
Last updated: February 11, 2013

Page last updated: August 23, 2015

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