Study period (25 months) | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre-phase | Interruption | Post-phase | ||||||||||||
Time-point | 4 weeks before surgery | 2–4 days before surgery | 1 day before surgery | Surgery | 3 days after discharge | 30 days after discharge | 4 weeks before surgery | 2–4 day before surgery | 1 day before surgery | Surgery | 3 days after discharge | 30 days after discharge | ||
Enrolment | Eligibility screen | X | X | |||||||||||
Informed consent | X | X | ||||||||||||
Control | Standard consent form anesthesia | Xa | Xa | |||||||||||
Standard consent form TKA | X | |||||||||||||
Intervention | Evidence-based consent form anesthesia | Xa | Xa | |||||||||||
Evidence-based consent form TKA | X | |||||||||||||
Surgery | X | X | ||||||||||||
Assessments | Patient characteristics | X | X | |||||||||||
Baseline anxiety | X | X | ||||||||||||
Anxiety | X | X | ||||||||||||
Health knowledge | X | X | ||||||||||||
Satisfaction with physician-patient-communication | X | X | ||||||||||||
Nocebo-effect | X | X | ||||||||||||
Quality of Life | X | X | ||||||||||||
Pain and function | X | X |