The Role of Preoperative Factors on Acute Postoperative Pain and Physical Function After Total Knee Arthroplasty

This is the authors' abstract. We don't add key points for this paper.

Purpose: Many preoperative factors can affect the pain and physical function complaints reported in the acute period after total knee arthroplasty (TKA). This study was planned to reveal the preoperative factors that may affect pain and physical function in the acute period of patients post-TKA. Methods: Seventy patients (53 women, 17 men) with a mean age of 66.5±7.53 years were enrolled in this study. Before the surgery, the Hospital for Special Surgery Knee Scoring, a Visual Analog Scale, the Tampa Kinesiophobia Scale, the Hospital Anxiety and Depression Scale, the International Physical Activity Questionnaire Short Form and the Body Awareness Questionnaire were used to evaluate the patients. The Brief Pain Inventory and the Timed Up and Go Test were used for post-surgery assessments. Results: Postoperative acute pain (PAP) was associated with preoperative kinesiophobia, anxiety, depression, and pain severity (r=0.684, p=0.000; r=0.424, p=0.000; r=0.329, p=0.005; r=0.259, p=0.030, respectively). Postoperative acute physical performance (PAPP) was associated with preoperative kinesiophobia (r=0.280 ; p=0.019). It was found that there was no relationship between preoperative body awareness and acute postoperative pain and physical performance (p>0.05). There was a significant difference in PAPP between inactive and inactive preoperative physical activity levels (p=0.000). There was a statistically significant difference between the PAP and PAPP between patients with preoperative knee pain duration of 5 years and under and patients with 6 years or more (p=0.025). Conclusion: Through the assessment of the preoperative risk factors identified in this study, patients at higher risk of acute postoperative pain and poor physical performance can be identified.

Preoperative kinesiophobia, anxiety, and depression correlate with acute post-TKA pain and function; hypothesis-generating for risk stratification in observational data.