Abstract Osteonecrosis of the femoral head (ONFH) is a refractory disease that is associated with collapse of the femoral head. with a risk of hip arthroplasty in younger populations. Thus. there has been an increased focus on early interventions for ONFH that aim to preserve the native articulation. https://www.markbroyard.com/deal-time-gtech-airram-mk2-k9-roller-roll-brush-bar-filter-vacuum-cleaner-hot-on-sale-best-find/