Pain catastrophising as a risk factor for hospitalisation and readmissions in fast-track hip and knee arthroplasty, an observational multicentre cohort study
Main finding · LOS >2 daysResult — go to the resultOdds ratio 1.54 95% CI 1.29–1.83Authors' conclusion
A preoperative pain catastrophising scale of >20 was associated with increased hospital length of stay and increased 90 day readmission rate despite planned same-day discharge after fast-track total hip arthoplasty, total knee arthoplasty and unicompartmental knee arthroplasty surgery.
Study context
- Population
- Patients undergoing fast-track total hip arthroplasties (THA), total knee arthroplasties (TKA) or unicompartmental knee arthroplasties (UKA) at eight Danish arthroplasty departments, September 2022 to June 2025
- Participants
- 15,965 procedures
- Exposure
- Preoperative pain catastrophising scale (PCS) >20 vs ≤20
- PCS >20n = 5,225
- Outcome
- Hospital LOS >2 days
Methodological detailsmulticentre, observational, binary multilevel logistic regression
- Multicentre
- Observational
- Binary multilevel logistic regression
Main finding
LOS >2 days
Odds ratio
1.54
95% CI 1.29–1.83
P < 0.001
PCS >20 vs PCS ≤20
OR 1.54 (95% CI 1.29–1.83); P < 0.001
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | OR (CI) | P value | |
|---|---|---|---|
| 90-day all-cause readmissions · total cohort | 1.18 (1.03–1.35) | P = 0.02 | |
| Hospitalisation due to pain or insufficient mobilisationTotal cohort | 1.38 (1.11–1.72) | P = 0.004 | |
| Admission despite planned same-day dischargeTotal cohort | 1.25 (1.06–1.40) | P = 0.005 | |
| 0.512Odds ratio (log scale) |
LOS after UKA (procedure-specific analysis)
- No association with LOS after UKA
- OR 0.59; CI 0.30-1.17; P=0.129
Readmission after TKA (procedure-specific analysis)
- No association with readmission after TKA
- OR 1.02; CI 0.82-1.26; P=0.890
Original publication
Pain catastrophising as a risk factor for hospitalisation and readmissions in fast-track hip and knee arthroplasty, an observational multicentre cohort study. BJA Open. Published 1 June 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →