Brain fog after hip or knee replacement: how common and how long?
Knowledge-focused
Ongoing
This study follows 505 adults aged 50 and older who are having hip or knee replacement surgery. Researchers use a simple online card-game test to measure changes in memory, attention, and thinking before and up to 4.5 months after surgery. The goal is to find out how many people …
Sponsor: Dr. Stephen Choi • Aim: Knowledge-focused
Last updated Jun 26, 2026 14:02 UTC