• Sean T Campbell, Mario Taylor, Robert P Dunbar, and Reza Firoozabadi.
• Department of Orthopaedic Surgery, Harborview Medical Center, 325 9th Ave, Box 359798, Seattle, WA, 98104, USA. campbells@hss.edu.
• Arch Orthop Trauma Surg. 2022 Jun 1; 142 (6): 955-959.

IntroductionSeptic arthritis following surgical treatment of a tibial plateau fracture is a rare complication, but it does occur, and the impact on long-term function is relatively unknown. The purpose of this study was to determine the long-term sequelae of septic arthritis among patients treated with internal fixation for a tibial plateau fracture and to determine the effect of timing (early or late infection) on the rate of such sequela.Materials And MethodsA retrospective comparative study was designed using the trauma database of a single level I academic trauma center. Patients who developed culture-positive septic knee arthritis after internal fixation of a tibial plateau fracture, with 1-year follow-up, were included in the study. The number of debridement procedures required was recorded. Rates of long-term complications and implant removal were identified. Complications rates were compared between patients who developed early (within 30 days of definitive fixation) and late (more than 30 days) septic arthritis.ResultsThe mean number of debridement procedures per patient was six. Fourteen patients (88%) required implant removal, and thirteen (81%) developed knee arthritis. There was a significantly lower rate of complications in the early septic arthritis group compared to the late group (3 of 6 patients or 50%, vs 10 of 10 patients or 100%; p = 0.036).ConclusionsPatients who developed septic arthritis following internal fixation of a tibial plateau fracture were likely to endure long-term sequelae. Early infection and detection led to fewer complications. Surgeons treating infectious complications in tibial plateau fracture patients should specifically seek to rule out septic arthritis, anticipate that implant removal may be necessary, and counsel these patients appropriately regarding the anticipated natural history of their condition.Level Of EvidenceIII.© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

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