Appendix 1. CENTRAL search strategy

1. MeSH descriptor hip arthroplasty explode all trees

2. MeSH descriptor hip prosthesis explode all trees

3. hip*[tw] AND (arthroplast* OR implant* OR replace* OR prosthe* OR endoprosthe*):ti,ab

4. (resurf$ or re‐surf$).mp. [mp=ti, ab, rw, sh]

5. 1 OR 2 OR 3 OR 4

6. MeSH descriptor osteoarthritis explode all trees

7. MeSH descriptor arthritis explode all trees

9. osteoarthr*:ti,ab

10. arthrit*:ti,ab

11. arthralgia:ti,ab

12. rheuma*:ti,ab

13. 6 OR 7 OR 8 OR 9 OR 10 OR 11 OR 12

14. 5 and 13

Appendix 2. MEDLINE search strategy

1. Arthroplasty, Replacement, Hip/

2. (hip prosthesis or hip replacement or hip arthroplast$).tw.

3. joint prosthesis/

4. (resurf$ or re‐surf$).mp. [mp=ti, ab, rw, sh]

5. or/1‐4

6. exp Osteoarthritis/

7. (arthrit$ or arthrosis$ or osteoarthr$).tw.

8. 6 or 7

9. randomized controlled trial.pt.

10. controlled clinical trial.pt.

11. randomized.ab.

12. placebo.ab.

13. clinical trials as topic.sh.

14. randomly.ab.

15. trial.ti.

16. 9 or 10 or 11 or 12 or 13 or 14 or 15

17. exp animals/ not humans.sh.

18. 16 not 17

19. 5 and 8 and 18

Appendix 3. EMBASE search strategy

1. exp hip arthroplasty/

2. hip/su [Surgery]

3. (hip adj3 (arthropl$ or pros$ or surg$ or replac$)).ti,ab.

4. (resurf$ or re‐surf$).mp. [mp=ti, ab, rw, sh]

5. or/1‐4

6. exp Arthritis/

7. arthrit$.tw.

8. osteoarthr$.tw.

9. coxarthrosis.tw.

10. arthralgia.tw.

11. rheuma$.tw.

12. or/6‐11

13. exp hip/

14. exp hip joint/

15. hip$.tw.

16. or/13‐15

17. 12 and 16

18. exp hip Osteoarthritis/

19. exp hip Arthritis/

20. or/17‐19

21. randomized controlled trial.pt.

22. controlled clinical trial.pt.

23. randomized.ab.

24. placebo.ab.

25. clinical trials as topic.sh.

26. randomly.ab.

27. trial.ti.

28. 21 or 22 or 23 or 24 or 25 or 26 or 27

29. exp human/

30. 5 and 20 and 28 and 29