“…In four of the 17 articles in this category, the researchers used the VAS as a way to measure expectation (21)(22)(23)36) , seven studies used a Likert scale (24,(26)(27)32,(34)(35)37) , and finally, in six studies the researchers created closed-ended questions addressing patients' expectations toward surgery (18,25,29,31,33,38) . Of these studies, in most cases, patients' expectation facing their main symptoms, such as pain, muscle function, and sensitivity (18, Instruments used in the assessment of expectation toward a spine surgery: an integrative review the general state of health, overall success of the surgery and recovery (23,29,31,33,35,36) ; two studies evaluated return to work (24,31) , and one assessed the social role (18) .…”