Heterotopic Ossification Prophylaxis - Cheh Chin Tai 11/7/2002

 

Authors

Schmidt, Kjaersgaard-Anderson et al             Denmark

Title

The Use of Indomethacin to Prevent the Formation of Heterotopic Bone after Total Hip Replacement.

Reference

JBJS 70A 1988 (6): 834-8

Summary

201 patients: 102 on indomethacin (25 mg tds) vs 99 on placebo for 6/52 post-op. At one year f/u, HO in 13% indomethacin patients (all grade I lesion) vs 75% placebo. 50% placebo group had grade II or III lesion (DeLee)

Critique

Double-blind randomised trial but randomisation method not stated. 12 patients wanted to be taken off the medication but reasons not stated.

 

 

Authors

Pellegrini, Knoski, Gastel et al                       Rochester

Title

Prevention of Heterotopic Ossification with Irradiation after THR

Reference

JBJS 74A 1992 (2): 186-200

Summary

62 at risk hips (55 patients): 34 hips received a single 800 cGy limited-field radiation vs 28 received 1000 cGy (within 4/7 post-op). At 6/12 f/u, progression of HO noticed in 21% both groups. Extra-field ossification occurred in 31% hips.

Critique

Computer-generated randomisation. Only at risk patients.

 

 



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