Clinical Scorecard: Utilizing Acceptance and Commitment Therapy to Mitigate Chronic Pain Following Total Knee Arthroplasty

At a Glance

Key Highlights

• NOPAIN, an ACT-based treatment, is feasible and can be integrated into standard postoperative rehabilitation after TKA.
• Pain intensity, knee pain, stiffness, and function significantly improved over 3 months following NOPAIN treatment.
• Female sex and older age were associated with lower odds of moderate-to-severe pain at 3 months; central sensitization and pain catastrophizing predicted higher pain risk.

Guideline-Based Recommendations

Diagnosis

• Assess pain intensity using Numeric Rating Scale (NRS) and knee function using WOMAC.
• Evaluate psychological factors including pain catastrophizing (Pain Catastrophizing Scale), psychological distress (Hospital Anxiety and Depression Scale), and central sensitization (Central Sensitization Inventory).

Management

• Implement early postoperative ACT-based interventions (NOPAIN) to prevent chronic postsurgical pain.
• Incorporate psychological flexibility training to reduce maladaptive cognitions and improve treatment adherence.
• Address identified risk factors such as central sensitization and pain catastrophizing to tailor interventions.

Monitoring & Follow-up

• Monitor pain intensity, knee function, and psychological distress at baseline and at 3 months post-treatment.
• Track treatment adherence and completion of ACT sessions.
• Evaluate changes in pain catastrophizing components, especially helplessness and rumination.

Risks

• Patients with central sensitization and high baseline pain catastrophizing are at increased risk of developing moderate-to-severe chronic pain.
• Younger patients and males may have higher odds of persistent pain post-TKA.

Patient & Prescribing Data

Eighty patients undergoing postoperative rehabilitation after total knee arthroplasty

72% participation rate with 81.3% completing all 4 NOPAIN sessions; significant improvements in pain and function observed at 3 months.

Clinical Best Practices

• Integrate ACT-based psychological interventions early in postoperative rehabilitation to enhance recovery and prevent chronic pain.
• Screen patients pre- and postoperatively for psychological distress and central sensitization to identify those at higher risk.
• Focus on reducing pain catastrophizing, particularly helplessness and rumination, to improve outcomes.
• Encourage adherence to rehabilitation and psychological treatment protocols to maximize benefits.

References

• ClinicalTrials.gov NOPAIN Study