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Predictive Factors for Developing Chronic Pain After Total Knee Arthroplasty.

David H Kim1, Kristine M Pearson-Chauhan1, Robert J McCarthy1

  • 1Department of Anesthesiology, Rush University Medical Center, Chicago, Illinois.

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Summary

Chronic postsurgical pain (CPSP) affects 8-34% of total knee arthroplasty patients, reducing quality of life. Identifying modifiable risk factors is key to developing interventions that can improve patient outcomes.

Keywords:
chronic postoperative paingenetic factorspreoperative painpsychological staterisk factorstotal knee arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Pain Management
  • Patient Outcomes

Background:

  • Total knee arthroplasty significantly enhances patient function and quality of life.
  • A notable percentage of patients (8-34%) develop chronic postsurgical pain (CPSP) after the procedure.
  • CPSP negatively impacts daily activities and overall quality of life post-surgery.

Purpose of the Study:

  • To identify and categorize risk factors associated with chronic postsurgical pain (CPSP) following total knee arthroplasty.
  • To differentiate between modifiable and non-modifiable risk factors for CPSP.
  • To provide a foundation for developing targeted interventions to mitigate CPSP.

Main Methods:

  • Review and synthesis of existing literature on risk factors for chronic postsurgical pain after total knee arthroplasty.
  • Categorization of identified risk factors into 'modifiable' and 'unlikely modifiable' groups.
  • Analysis of the potential impact of these factors on patient outcomes.

Main Results:

  • Unlikely modifiable risk factors include demographic (gender, age) and clinical (medical comorbidities, socioeconomic status) variables.
  • Potentially modifiable risk factors encompass perioperative pain levels, pre-operative physical function, psychological state, surgical specifics, and genetic predispositions.
  • Understanding the magnitude of these risks is crucial for effective intervention strategies.

Conclusions:

  • Chronic postsurgical pain is a significant complication following total knee arthroplasty.
  • Risk factors for CPSP are diverse, including both inherent patient characteristics and perioperative elements.
  • Targeting modifiable risk factors presents a promising avenue for improving patient outcomes and reducing the incidence of CPSP.