Osteonecrosis in sickle cell disease: Contemporary orthopaedic practice and outcomes across African healthcare settingsEmmanuel Olusola Oladeji, Oluwatobi Olayode, Abdulahi Zubair, Vernon Ipomai, Oluwafemi Olayinka, Patrick Okonkwo, Onyeka Omerenma, Gregory Okhifun and Oghofori ObakponovweSICOT-J, 12 (2026) 13DOI: https://doi.org/10.1051/sicotj/2026008