Mr da Assunção was awarded MBBCh from the University of the Witwatersrand, Johannesburg, South Africa in 1997, after undergraduate surgical training at the Chris Hani (formerly Baragwanath) Hospital, Soweto and the Johannesburg General Hospital.
He moved to the south of England in 1998 where he undertook basic surgical training and was awarded MRCS in 2003. His higher surgical training took place on the Wessex Orthopaedic Surgical Rotation and he was awarded FRCS (Tr&Orth) in 2009. He pursued his interest in lower limb and orthopaedic trauma surgery with orthopaedic trauma fellowships at major trauma centres in Seattle, USA (Harbourview Medical Centre) and Perth, Australia (Royal Perth Hospital), where he gained experience in the management of complex bone and joint injuries. He also undertook a hip and knee reconstruction fellowship in Sydney, Australia where he gained experience in advanced hip and knee replacement techniques as well as knee ligament reconstruction.
He was subsequently appointed as a hip and knee fellow at the Nuffield Orthopaedic Centre, Oxford where he gained experience in complex hip and knee replacement, partial knee replacement, ligament reconstruction and revision surgery. In December 2011 he was appointed as a locum consultant at Western Sussex Hospitals NHS Trust and was appointed as a permanent consultant in October 2012. He has a special interest in hip and knee surgery and trauma in the elderly.