Clock Drawing Performance Slows for Older Adults After Total Knee Replacement Surgery.

ABSTRACT:

Background

Clock drawing is a neurocognitive screening tool used in preoperative settings. This study examined hypothesized changes in clock drawing to command and copy test conditions 3 weeks and 3 months after total knee arthroplasty (TKA) with general anesthesia.

Methods

Participants included 67 surgery and 66 nonsurgery individuals >60 years who completed the digital clock drawing test before TKA (or a pseudosurgery date), and 3 weeks and 3 months postsurgery. Generalized linear mixed models assessed digital clock drawing test latency (ie, total time to completion, seconds between digit placement) and graphomotor output (ie, total number of strokes, clock size). Reliable change analyses examined the percent of participants showing change beyond differences found in nonsu

SUBMITTER: Hizel LP 

PROVIDER: S-EPMC6579692 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature