Preop Cognitive Impairment Tied to TKA Delirium - Summary - MDSpire
From the Journals

Preop Cognitive Impairment Tied to TKA Delirium

Older patients with documented cognitive impairment also experienced greater postoperative functional decline following elective total knee arthroplasty

  • By

  • Andrea Surnit

  • May 13, 2026

  • 4 min

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A study examining older patients undergoing elective total knee arthroplasty revealed that those with preoperative cognitive impairment faced significantly higher rates of postoperative delirium and functional dependence. Analyzing data from 6,350 patients aged 65 and older from 2014 to 2018, researchers found that 27% of patients with cognitive impairment experienced delirium, compared to less than 1% of those without it. Postoperatively, only 17% of patients with impairment maintained independence in daily activities. The findings illuminate the importance of preoperative cognitive assessment to potentially mitigate complications and improve outcomes.

Original Source(s)

Preop Cognitive Impairment Tied to TKA Delirium

  • by Andrea Surnit

  • May 13, 2026

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