Devnani, Anand SobhrajYeak, Raymond Dieu KiatFahrudin, Che Hamzah2026-08-142026-08-142020https://hdl.handle.net/20.500.14572/7300Anand Sobhraj Devnani Department of Orthopaedic Surgery, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia Raymond Dieu Kiat Yeak Department of Orthopaedic Surgery, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia Che Hamzah Fahrudin Department of Orthopaedic Surgery, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, MalaysiaAbstract Septic arthritis of the knee is rare in adults. This leads to difficulty in making early diagnosis that invariably leads to delayed treatment with consequent destruction of the joint. The delay in diagnosis is largely attributed to absence of clinical signs of flagrant infection. Reported are three adult patients who presented with painful swollen knee and inability to walk few weeks after intra-articular injection for osteoarthritis. This paper discusses the cases in which the difficulties in the early diagnosis of septic arthritis of knee in adults led to the development of osteomyelitis. Keywords: intra-articular injection; knee; osteoarthritis; osteomyelitis; septic arthritis.en-USintra-articular injectionkneeosteoarthritisosteomyelitisseptic arthritisArticle