Randomized Controlled Trial
Prevention of heterotopic ossification about the hip: final results of two randomized trials in 410 patients using either preoperative or postoperative radiation therapy.
Int. J. Radiat. Oncol. Biol. Phys. 1997 Aug 1;39(1):161-71.
Randomized Controlled Trial
Prophylaxis of heterotopic ossification after total hip arthroplasty: a prospective randomized study comparing indomethacin and meloxicam.
Acta Orthop Scand. 2002 Dec 1;73(6):611-4.
Meta Analysis
Selective COX-2 inhibitor versus nonselective COX-1 and COX-2 inhibitor in the prevention of heterotopic ossification after total hip arthroplasty: a meta-analysis of randomised trials.
Int Orthop. 2011 Jan 1;35(1):3-8.