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Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_12 | Pages 46 - 46
1 Oct 2019
Iorio R Feder O Schwarzkopf R Einhorn TA
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Introduction

Without intervention 80% of hips with osteonecrosis (ON) will progress. Core decompression has shown favorable results (60–80% survivorship) in early stage ON, and recently, bone marrow aspirate concentration (BMAC) injection into the decompressed femoral head has been proposed to stimulate healing of the necrotic lesion and improve outcomes and survivorship.

Methods

We retrospectively reviewed the clinical and radiographic outcomes of 42 hips in 26 patients who underwent core decompression with BMAC for ON with a minimum of 1 year follow up. We evaluated pre-op visual analog pain scores (VAS), Steinberg class based on radiographs, as well as Kerboul angle as measured on MRI. Clinical outcomes were reported as change in VAS at final follow up, advancement in Steinberg classification based on radiographs at final follow up, or decision to proceed with THA.