Acute postoperative pain and catastrophizing in unicompartmental knee arthroplasty: a prospective, observational, single-center, cohort study
Authors' conclusion
The incidence of predicted high-pain responders in UKA was slightly lower than reported in total knee arthroplasty. Additionally, preoperative pain catastrophizing was not associated with acute postoperative pain during walking.
Study context
- Population
- Patients undergoing unicompartmental knee arthroplasty (UKA)101 completed pain diary
- Participants
- 125 patients
- Exposure
- Predicted high-pain vs low-pain responders
- Outcome
- Incidence of predicted high-pain responders (Pain Catastrophizing Scale score >20) and acute postoperative pain course
Methodological detailssingle-center, consecutive inclusion
- Single-center
- Consecutive inclusion
Main finding
As reported in the abstract
Incidence of predicted high-pain responders
Incidence of predicted high-pain responders
31%
95% CI 23% to 40%
Observational data: associations, not effects.
Further findings
| Outcome | Predicted high-pain responders | Predicted low-pain responders | OR (95% CI) | P value | |
|---|---|---|---|---|---|
| Moderate to severe pain during walking · 24 hours postoperatively | 69% (95% CI 52%–83%) | 66% (95% CI 55%–76%) | 1.3 (0.5–3.1) | ||
| Moderate to severe pain at rest · 24 hours postoperatively | 49% (95% CI 32%–65%) | 28% (95% CI 19%–39%) | 2.6 (1.1–6.1) | P = 0.03 | |
| 0.10.31310Odds ratio (log scale) |
Cumulated pain during walking · days 2-7
- Pain catastrophizing not associated with increased cumulated pain during walking
Original publication
Acute postoperative pain and catastrophizing in unicompartmental knee arthroplasty: a prospective, observational, single-center, cohort study. Reg Anesth Pain Med. Published 5 June 2024. doi:10.
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