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Randomized Controlled Trial
. 2006 Sep 9;333(7567):519.
doi: 10.1136/bmj.38925.471146.4F. Epub 2006 Aug 2.

Safety and efficacy of routine postoperative ibuprofen for pain and disability related to ectopic bone formation after hip replacement surgery (HIPAID): randomised controlled trial

Marlene Fransen  1 , Craig Anderson, Jan Douglas, Stephen MacMahon, Bruce Neal, Robyn Norton, Mark Woodward, Ian D Cameron, Ross Crawford, Sing Kai Lo, Garnet Tregonning, Margaret Windolf; HIPAID Collaborative Group
Affiliations
Randomized Controlled Trial

Safety and efficacy of routine postoperative ibuprofen for pain and disability related to ectopic bone formation after hip replacement surgery (HIPAID): randomised controlled trial

Marlene Fransen et al. BMJ. .

Abstract

Objectives: To determine the benefits and risks of a non-steroidal anti-inflammatory drug (NSAID) as prophylaxis for ectopic bone formation in patients undergoing total hip replacement (or revision) surgery.

Design: Double blind randomised placebo controlled clinical trial, stratified by treatment site and surgery (primary or revision).

Setting: 20 orthopaedic surgery centres in Australia and New Zealand.

Participants: 902 patients undergoing elective primary or revision total hip replacement surgery.

Intervention: 14 days' treatment with ibuprofen (1200 mg daily) or matching placebo started within 24 hours of surgery.

Main outcome measures: Changes in self reported hip pain and physical function 6 to 12 months after surgery (Western Ontario and McMaster University Arthritis index).

Results: There were no significant differences between the groups for improvements in hip pain (mean difference -0.1, 95% confidence interval -0.4 to 0.2, P = 0.6) or physical function (-0.1, -0.4 to 0.2, P = 0.5), despite a decreased risk of ectopic bone formation (relative risk 0.69, 0.56 to 0.83) associated with ibuprofen. There was a significantly increased risk of major bleeding complications in the ibuprofen group during the admission period (2.09, 1.00 to 4.39).

Conclusions: These data do not support the use of routine prophylaxis with NSAIDs in patients undergoing total hip replacement surgery.

Trial registration: NCT00145730.

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Figure 1
Details of flow of participants through study
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References

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