The different types of treatment for osteonecrosis of the femoral head have not led to a consensus about which treatment is best for the different stages. Particularly in the later stages of osteonecrosis, the disease still progresses to destruction of the femoral dome. The purpose of our study was to check the outcome of bone impaction grafting used for the head-preserving treatment of severe femoral head osteonecrosis. In order to preserve the femoral head, the sphericity and mechanical properties of the femoral dome must be contained and further collapse prevented. In this prospective study, we included 28 hips in 27 patients who had severe complaints of pain due to an extensive osteonecrotic lesion. The mean age of the patients was 33 years with a mean follow up time of 42 months.Introduction
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