What Researchers Did
Researchers conducted a prospective, randomised study comparing cocktail therapy (extracorporeal shock wave treatment, hyperbaric oxygen therapy, and alendronate) to extracorporeal shock wave treatment alone for early hip necrosis in 63 patients (98 hips).
What They Found
After a minimum of 2 years, 74% of hips in the cocktail therapy group improved compared to 79.2% in the ESWT-alone group, with no significant difference (P = 0.717). Total hip replacement was performed in 10% of the cocktail group and 10.4% of the ESWT-alone group (P = 0.946). While MRI showed significant reduction in bone marrow oedema in both groups, no difference was noted between the two treatment approaches.
Canadian Relevance
This study has no direct Canadian connection as it was not conducted in Canada nor involved Canadian participants or researchers.
Study Limitations
A limitation of this study is that the minimum 2-year follow-up period may not be sufficient to fully assess long-term outcomes for hip necrosis.