Background: Knee Arthroplasty is a common elective orthopaedic procedure with unicompartmental knee arthroplasty (UKA) becoming increasingly popular. Vascular complications following Knee arthroplasty are rare but due to the significant potential morbidity they must be diagnosed and managed promptly. Vascular injuries associated with UKA are not well recognised or reported in the literature.
Case Report: We present three different cases of vascular injuries following knee arthroplasty one of which occurred following UKA. The clinical presentation, investigations, diagnosis and management are discussed.
Conclusions: Vascular complications resulting from Knee arthroplasty may have an immediate, early or late presentation with occasionally serious and disabling consequences. They may require a lengthy hospital stay with multiple operations and the involvement of multidisciplinary teams. Moreover, Good follow-up and junior doctors education would help in the early diagnosis and management of these conditions.

Keywords: vascular complications, Popliteal, Fistula, pseudoaneurysm, Aneurysm, False, Arthroplasty, Replacement, Knee, Arthroplasty