His clinical research activity’s current thrust is oncology, cancer, and trauma immune response. He introduced an international study through ECOG on trans-angiography chemoembolisation for advanced hepatocellular carcinoma. His current endocrine project is minimal access surgery for parathyroid adenoma and thyroid nodule surgery. He started and ran a laboratory research programme on the immune response to cancer and its management and studies of HPV in cancers of the Breast, Oesophagus, and Anorectum.
Professor Mokoena has modernised the Academic Department of Surgery. He introduced disease-focused units, the nodus for advanced specialist practice and training, and a platform for competitive clinical research. Under his leadership, new fledgling trauma and metabolic surgery (bariatric) units were established. The department has seen a new surge in research output since he was appointed head.
He is active in academic and professional leadership having served at different times on several national academic and professional bodies including the SA Medical Association, Health Professions Council of SA, Colleges of Medicine of SA, College of Surgeons of SA, Association of Surgeons of SA (Past President 2007-9) and National Health Laboratories Trust, Medical Research Council (past chairman2001-4), and Council of University of the Transkei which ushered in the new Walter Sisulu University.
He was a special advisor and facilitator for the complex merger of MEDUNSA and the University of the North to form the University of Limpopo. He served on an International Accreditation Review Panel for Mauritius’s New Medical Training Programme. He was an ad-hoc Ministerial Advisory Committee member on transforming the National Health Act.
His teaching and training span about forty periods, during which he taught nursing and medical students and trainee specialist registrars in surgery. Professor Mokoena has successfully trained five basic laboratory science Master Students in Immunology and has two such students. He has supervised two PhD students and currently has a further two. He has served as PhD external examiner for Wits Medical School, UKZN Nelson Mandela Medical School and UCT.
Professor Mokoena’s forte lies in strategic focus analysis and negotiations. He is known for serving with diligence and conscience, applying himself robustly and ethically without fear or favour. He continues to be an author and contributes to several publications.