84
Participants
Start Date
June 9, 2017
Primary Completion Date
March 31, 2018
Study Completion Date
March 31, 2018
Noninvasive ultrasound assessment
An investigator evaluate the L4-5 interspinous level using anatomic landmarks in turn, then another independent investigator assess the consistency of the landmarks-guided interspinous level with the actual one by noninvasive ultrasound assessment.
Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul
SMG-SNU Boramae Medical Center
OTHER