Effectiveness of a Preoperative Preparation Guideline for Total Knee Arthroplasty at Nakhon Pathom Hospital.
Keywords:
preoperative preparation guideline, total knee arthroplasty (TKA), anxiety, self-practiceAbstract
This quasi-experimental study aimed to evaluate the effectiveness of a preoperative preparation guideline for total knee arthroplasty. It compared self-care knowledge, exercise knowledge, anxiety levels, postoperative self-practice, and length of hospital stay between an experimental group and a comparison group. The participants consisted of 62 patients diagnosed with knee osteoarthritis, equally divided into an experimental group and a comparison group (31 patients each) through simple random sampling. The experimental group received care according to the preoperative preparation guideline for total knee arthroplasty implemented at Nakhon Pathom Hospital, while the comparison group received conventional care. Research instruments utilized included questionnaires on self-care knowledge and exercise knowledge (with Kuder-Richardson 21 reliability coefficients of .76 and .79, respectively), a postoperative self-practice assessment form, an anxiety assessment form (with Cronbach's alpha coefficients of .84 and .89, respectively), and a hospital stay record form. Data analysis was performed using descriptive statistics, chi-square test, Fisher's exact test, and t-test.
The findings revealed that the experimental group had significantly higher mean scores in self-care knowledge (t=12.18,p<.001), exercise knowledge (t=10.42,p<.001), and postoperative self-practice (t=42.13,p<.001) compared to the comparison group. The experimental group had significantly lower mean anxiety scores (t=−46.13,p<.001). However, there was no statistically significant difference observed in the length of hospital stay (u=−.41,p=.685).
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