Evaluating Patient Knowledge About Perioperative Neurocognitive Disorders (KNOW-PND Study)

"Patients, 65 and above, scheduled for elective total hip replacement surgery, will be invited to participate in a survey (consisting of 15 questions) testing their knowledge regarding PND.~After completion of the survey, patients will receive a standard preoperative brochure on anaesthesia-related topics and delirium.~T-MOCA scores will be collected (22 = perfect score; \<18 = cutoff for cognitive impairment) (through a pre-operative telephone call).~Six weeks post-operatively patients will once again be called for T-moca scores.~Initially a feasibility study for 1/3 of sample size will be done."