What is the patient-reported outcome, complication rate and conversion to total knee arthroplasty in patients with tibial plateau fractures caused by high-energy compared to low-energy mechanisms of injury?
Thijs P Vaartjes, Tijmen W Kraai, Eelke Bosma, Fabian J van der Sluis, Joost G Ten Brinke, Reinier de Groot, Harm Hoekstra, Job N Doornberg, Nick Assink, Frank F A IJpma
Author Information
Thijs P Vaartjes: Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, HPC BA13, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands. t.p.vaartjes@umcg.nl. ORCID
Tijmen W Kraai: Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, HPC BA13, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands. ORCID
Eelke Bosma: Department of Trauma Surgery, Martini Hospital, Groningen, The Netherlands. ORCID
Fabian J van der Sluis: Department of Trauma Surgery, Isala Hospitals, Zwolle, The Netherlands.
Joost G Ten Brinke: Department of Trauma Surgery, Gelre Hospitals, Apeldoorn, The Netherlands.
Reinier de Groot: Department of Trauma Surgery, Medical Spectrum Twente, Enschede, The Netherlands.
Harm Hoekstra: Department of Traumatology, KU Leuven, University Hospitals Leuven Gasthuisberg Campus, Leuven, Belgium. ORCID
Job N Doornberg: Department of Orthopedic Surgery, University Medical Center Groningen, Groningen, The Netherlands.
Nick Assink: Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, HPC BA13, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands. ORCID
Frank F A IJpma: Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, HPC BA13, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands. f.f.a.ijpma@umcg.nl. ORCID
PURPOSE: Despite varying impact of high- and low-energy traumas, research comparing patient and fracture characteristics as well as patient-reported functional outcomes following these trauma mechanisms is limited. From a patient, doctor, and legal perspective, assessing the association between trauma mechanism and clinical outcome is important for managing expectations. METHODS: A multicenter cross-sectional study was performed including 1066 patients treated for a tibial plateau fracture between 2003 and 2019. Patients completed the Knee injury and Osteoarthritis Outcomes Score (KOOS) at a mean follow-up of 6 ± 4 years. Trauma mechanisms were classified according to ATLS guidelines. Independent- samples t-test and chi-square test were used to assess differences in patient and fracture characteristics after high- or low-energy trauma. Linear regression analyzed the relationship between trauma mechanisms and KOOS-scores. The Fisher's exact assessed differences in complications and conversion to total knee arthroplasty (TKA). RESULTS: High-energy trauma mostly occurred in younger males and low-energy trauma in older females. High-energy trauma caused more Schatzker IV-VI fractures, resulted in more initial fracture displacement and needed more often surgical treatment (81% versus 67%; p = 0.002). Linear regression showed that high-energy trauma was associated with lower KOOS-scores. Patients after high-energy trauma had more complications (e.g. revision surgery [8% versus 2%; p = < 0.001], mal- or nonunion [8% versus 2%; p = < 0.001]) and conversion to TKA (15% versus 10%; p = 0.144). CONCLUSION: Only 12% of patients with tibial plateau fractures sustained these injuries due to high-energy trauma, which predominantly involved younger males and resulted in more severe fractures. High-energy trauma resulted in worse patient-reported outcomes, more complications, and conversions to TKA. LEVEL OF EVIDENCE: Level III, prognostic study.
