Efficacy of various core decompression techniques versus non-operative treatment for osteonecrosis of the femoral head: a systemic review and network meta-analysis of randomized controlled trials.

Based on published data in the USA by Sodhi, N [ 13 ], although there was an increasing rate of THA for ONFH (75 to 88%) [ 14 ] during 1992 to 2008, decreased during 2009 to 2015 and found that the rate of joint-preserving procedures showed a trend of relative growth, especially in patients aged <50 years.

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