1. exp Arthroplasty, Replacement/ 2. exp Joint Prosthesis/ 3. ((hip$ or knee$) adj5 (arthroplast$ or prosthe$ or replac$)).tw. 4. or/1‐3 5. exp Preoperative Care/ 6. exp Patient Education/ 7. exp Postoperative Period/ 8. (information or instruct$ or educat$ or advice or support$).mp. 9. (video$ or tape$ or audio$ or leaflet$ or pamphlet$ or booklet$).mp. 10. or/5‐9 11. (random$ or placebo$).ti,ab. 12. ((single$ or double$ or triple$ or treble$) and (blind$ or mask$)).ti,ab. 13. controlled clinical trial$.ti,ab. 14. RETRACTED ARTICLE/ 15. or/11‐14 16. (animal$ not human$).sh,hw. 17. 15 not 16 18. and/4,10,17