• Jeppe Damgren Vesterager, Hannes Torngren, Rasmus Elsoe, and Peter Larsen.
• Department of Orthopedic Surgery, Aalborg University Hospital, Aalborg, Denmark. j.vesterager@rn.dk.
• Eur J Trauma Emerg Surg. 2024 Jul 9.

PurposeThe aim of this systematic review and proportional meta-analysis was to identify complications of surgical treatment of patella fractures and to estimate their incidence. We extended existing knowledge on this topic by including several more recent and large-scale studies.MethodsThis systematic review and meta-analysis were performed in accordance with the Cochrane Handbook for systematic reviews of interventions. After searching in PubMed, MEDLINE, EMBASE, Cochrane Library, and OpenGrey, all studies after 2000, with study populations > 100 patients, including only patients > 18 years and follow-up > 30 days, were included. Two independent authors assessed the literature search and extracted the data. The risk of bias was assessed using the Newcastle-Ottawa Quality Assessment Scale. The meta-analysis was performed on complications pooled in infections, nonunion, symptomatic implant removal, and fixation failure.ResultsThe data on complications were available from 14 studies, including a pool of 5659 patients. The most common complication was symptomatic implant removal, affecting.ConclusionSurgically, treatment of patella fractures was associated with a high risk of complications. The most common complication was symptomatic implant removal, affecting 29.6% of patients. Other complications stated were fixation failure 5.2%, infections 3.1% and nonunion 1.7%.© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.

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