1. Thienthong S, Jirarattanaphochai K, Krisanaprakornkit W, Simajareuk S, Tantanatewin W, Sathitkarnmanee A. Treatment of pain after spinal surgery in the recovery room by single dose lornoxicam: a randomized, double blind, placebo-controlled trial. J Med Assoc Thai 2004;87:650–5.
2. Nielsen RV, Fomsgaard JS, Dahl JB, Mathiesen O. Insufficient pain management after spine surgery. Dan Med J 2014;61:A4835.
3. Gerbershagen HJ, Aduckathil S, van Wijck AJ, Peelen LM, Kalkman CJ, Meissner W. Pain intensity on the first day after surgery: a prospective cohort study comparing 179 surgical procedures. Anesthesiology 2013;118:934–44.
5. Wu MH, Wong CH, Niu CC, Tsai TT, Chen LH, Chen WJ. A comparison of three types of postoperative pain control after posterior lumbar spinal surgery. Spine 2011;36:2224–31.
7. Ganter MT, Blumenthal S, Dubendorfer S, et al. The length of stay in the post-anaesthesia care unit correlates with pain intensity, nausea and vomiting on arrival. Perioper Med 2014;3:10.
8. McKillop AB, Carroll LJ, Battie MC. Depression as a prognostic factor of lumbar spinal stenosis: a systematic review. Spine J 2014;14:837–46.
10. Charuluxananan S, Thienthong S, Rungreungvanich M, Srirojanakul W, Punjasawadwong Y, Sriprajittichai P. A survey of post anesthetic pain management in Thailand. J Med Assoc Thai 2009;92:1028–32.
11. Urban MK, Jules-Elysee K, Urquhart B, Cammisa FP, Boachie-Adjei O. Reduction in postoperative pain after spinal fusion with instrumentation using intrathecal morphine. Spine 2002;27:535–7.
17. Theilen HJ, Heller AR, Litz RJ. Nitrous oxide-induced tension pneumocephalus after thoracic spinal cord surgery: a case report. J Neurosurg Anesthesiol 2008;20:211–2.
18. Kaymaz M, Oztanir N, Emmez H, Ozkose Z, Paşaoglu A. Epidural air entrapment after spinal surgery. Clin Neurol Neurosurg 2005;107:421–4.
19. Myles PS, Leslie K, Chan MT, et al. The safety of addition of nitrous oxide to general anaesthesia in at-risk patients having major non-cardiac surgery (ENIGMA-II): a randomised, single-blind trial. Lancet 2014;384:1446–54.
20. Duger C, Gursoy S, Karadag O, et al. Anesthetic and analgesic effects in patients undergoing a lumbar laminectomy of spinal, epidural or a combined spinal-epidural block with the addition of morphine. J Clin Neurosci 2012;19:406–10.
22. Gu J, Guan F, Zhu L, et al. Risk factors of postoperative low back pain for lumbar spine disease. World Neurosurg 2016;94:248–54.
23. Kurd MF, Kreitz T, Schroeder G, Vaccaro AR. The role of multimodal analgesia in spine surgery. J Am Acad Orthop Surg 2017;25:260–8.
24. Devin CJ, McGirt MJ. Best evidence in multimodal pain management in spine surgery and means of assessing postoperative pain and functional outcomes. J Clin Neurosci 2015;22:930–8.
25. Ali ZS, Ma TS, Ozturk AK, et al. Pre-optimization of spinal surgery patients: development of a neurosurgical enhanced recovery after surgery (ERAS) protocol. Clin Neurol Neurosurg 2018;164:142–53.
26. Wainwright TW, Immins T, Middleton RG. Enhanced recovery after surgery (ERAS) and its applicability for major spine surgery. Best Pract Res Clin Anaesthesiol 2016;30:91–102.
27. Development of an Enhanced Recovery After Surgery (ERAS) approach for lumbar spinal fusion. J Neurosurg Spine 2017;26:411–8.
28. Nielsen PR, Jorgensen LD, Dahl B, Pedersen T, Tonnesen H. Prehabilitation and early rehabilitation after spinal surgery: randomized clinical trial. Clin Rehabil 2010;24:137–48.