{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T16:40:05Z","timestamp":1787071205889,"version":"build-2736575974"},"reference-count":9,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","license":[{"start":{"date-parts":[[2025,2,4]],"date-time":"2025-02-04T00:00:00Z","timestamp":1738627200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":["J West Afr Coll Surg"],"published-print":{"date-parts":[[2025,4]]},"abstract":"Abstract<\/jats:title>\n \n Background:<\/jats:title>\n Bone tumours constitute about 0.5% of documented cancer incidence. A previous study conducted in our hospital showed an incidence of 0.53% for primary malignant bone tumour (PMBT). Some of the predisposing factors to the development of these bone tumours include trauma, irradiation, foreign bodies, and genetic malfunctioning or mutation. They present symptoms, such as bone pain, swelling and tenderness of the affected bone, and weight loss, and in some cases, the first presentation may be a pathological fracture through the bone tumour. The last review of primary malignant bone tumours carried out in our centre was in September 2007; therefore, this study is designed to provide an update on the current pattern of these tumours.<\/jats:p>\n <\/jats:sec>\n \n Aims and Objectives:<\/jats:title>\n The aim and objectives of this study are to provide an update on the current pattern of primary malignant bone tumours. To determine their relative frequencies, age and sex distributions, anatomical sites of occurrence as well as the histological types of the tumours.<\/jats:p>\n <\/jats:sec>\n \n Materials and Methods:<\/jats:title>\n This is a retrospective hospital-based study to re-evaluate the incidence of primary malignant bone tumour at the University College Hospital, Ibadan, Oyo State, Nigeria. The histopathology records of patients with primary malignant bone tumours were reviewed through the Cancer Registry of the University College Hospital, Ibadan from January 2007 to December 2022. The information retrieved from the Cancer Registry records includes the age of the patient, the sex, the histological type of tumour, and the bone involved. The data retrieved were analysed using version 23 of the Statistical Package for the Social Sciences.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n The results revealed that data from 170 patients with primary malignant bone tumours were reviewed within the study period. In all, there were 93 males and 77 females with a male-to-female ratio of 1.2:1. However, 145 patients had complete records and were reviewed. Primary malignant bone tumours occurred more in the second and third decades of life, and the most common primary malignant bone tumour was osteosarcoma.<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n This study concludes that the annual average occurrence of primary malignant bone tumour seems to be on the increase when compared with previous studies with a higher preponderance in the male gender with osteosarcoma being the most common PMBT. The younger age group, especially teenagers and young adults within the second and third decades of life are the most affected.<\/jats:p>\n <\/jats:sec>","DOI":"10.4103\/jwas.jwas_180_23","type":"journal-article","created":{"date-parts":[[2025,2,4]],"date-time":"2025-02-04T11:11:15Z","timestamp":1738667475000},"page":"142-145","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["The Incidence of Primary Malignant Bone Tumour at the University College Hospital, Ibadan, Oyo State, Nigeria, from 2007 to 2022: A Current Update"],"prefix":"10.4103","volume":"15","author":[{"given":"Tolulope","family":"Ogunrewo","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery and Trauma, University College Hospital, Ibadan, Oyo State, Nigeria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Temitope","family":"Alonge","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery and Trauma, University College Hospital, Ibadan, Oyo State, Nigeria"},{"name":"College of Medicine, University of Ibadan, Oyo State, Nigeria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Ogunbiyi","sequence":"additional","affiliation":[{"name":"College of Medicine, University of Ibadan, Oyo State, Nigeria"},{"name":"Department of Pathology, University College Hospital, Ibadan, Oyo State, Nigeria"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2025,2,4]]},"reference":[{"key":"CIT0001-20250217","doi-asserted-by":"crossref","first-page":"16","DOI":"10.4103\/0189-6725.59353","article-title":"Primary bone tumours and tumour-like lesions in children in Zaria, Nigeria","volume":"7","author":"Mohammed","year":"2010","journal-title":"Afr J Paediatr Surg"},{"key":"CIT0002-20250217","first-page":"291","article-title":"Primary malignant bone tumour in a tropical African University Teaching Hospital","volume":"21","author":"Omololu","year":"2002","journal-title":"West Afr J Med"},{"key":"CIT0003-20250217","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1007\/s00264-007-0475-x","article-title":"Challenges in the diagnosis and management of musculoskeletal tumours in Nigeria","volume":"33","author":"Eyesan","year":"2009","journal-title":"Int Orthop"},{"key":"CIT0004-20250217","first-page":"169","article-title":"Primary bone tumours in a tertiary hospital in Nigeria: 25 year review","volume":"12","author":"Obalum","year":"2009","journal-title":"Niger J Clin Pract"},{"key":"CIT0005-20250217","doi-asserted-by":"crossref","first-page":"1121","DOI":"10.1007\/s00132-011-1866-7","article-title":"Prim\u00e4r maligne knochentumoren","volume":"40","author":"von Eisenhart-Rothe","year":"2011","journal-title":"Der Orthop\u00e4de"},{"key":"CIT0006-20250217","first-page":"77","article-title":"Primary malignant bone tumours in Ibadan, Nigeria: An update","volume":"38","author":"Akang","year":"2009","journal-title":"Afr J Med Med Sci"},{"key":"CIT0007-20250217","first-page":"65","article-title":"Primary malignant tumors of bone: Incidence in Ibadan, Nigeria","volume":"74","author":"Oyemade","year":"1982","journal-title":"J Natl Med Assoc"},{"key":"CIT0008-20250217","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1080\/07357907.2020.1768401","article-title":"Epidemiology and risk factors of osteosarcoma","volume":"38","author":"Sadykova","year":"2020","journal-title":"Cancer Invest"},{"key":"CIT0009-20250217","first-page":"306","article-title":"Pathological study of bone tumours at the National Orthopaedic Hospital, Lagos, Nigeria","volume":"26","author":"Abdulkareem","year":"2007","journal-title":"West Afr J Med"}],"container-title":["Journal of West African College of Surgeons"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/jwas.jwas_180_23","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T15:43:04Z","timestamp":1787067784000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/jwas.jwas_180_23"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,2,4]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.4103\/jwas.jwas_180_23","relation":{},"ISSN":["2276-6944","2992-5827"],"issn-type":[{"value":"2276-6944","type":"print"},{"value":"2992-5827","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,2,4]]},"assertion":[{"value":"2023-11-27","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-06-25","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}