Overview The Effect of Ketamine Infusion on Lumbar Surgery Status: Unknown status Trial end date: 2015-04-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the effect of ketamine infusion for reduction of neuropathic pain and improvement of quality of life after lumbar surgery. Phase: Phase 4 Details Lead Sponsor: Yonsei UniversityTreatments: Ketamine