Postoperative Cognitive Dysfunction After Total Knee or Hip Replacement Surgery in Fast-track Set-up

Postoperative Cognitive Dysfunction After Total Knee or Hip Replacement Surgery in Fast-track Set-up

The aim of this study is to quantify the incidence of postoperative cognitive dysfunction in the elderly patient (>60y) after total hip or knee replacement surgery. The hypothesis is that the fast-track methodology with a mean hospital stay less than 3 days will help to minimize this reduction in memory and concentration.

Inclusion Criteria:

• 60 years of age or above
• ASA classification 1-4
• undergoing fast-track hip or knee replacement

Exclusion Criteria:

• anaesthesia within the past 90 days
• daily consumption of sleep or anxiety medication
• more than 35 units of alcohol per week
• lack of proper verbal and reading skills, Danish
• Serious hearing or visual impairment
• Mini mental status evaluation (MMSE) < 24
• Parkinsons Disease or other neurological disease causing functional impairment