Surgical management of displaced tibial plateau fracture (TPF) is often delayed due to accompanying soft tissue injuries sustained at the time of injury. The primary aim of this study was to assess the effect of time to surgery on fracture reduction in cases of TPF. The secondary aim was to assess the effect of preoperative demographics and residual articular step on Lysholm Scores and Knee Injury and Osteoarthritis Outcome Scores (KOOS) following fixation. Patients between 2006 and 2017, managed by a single surgeon, were prospectively enrolled in the study. Reduction of articular step, defined as <2 mm, was assessed by a single blinded examiner. A total of 117 patients were enrolled, 52 with Schatzker II, 4 with Schatzker IV, and 61 with Schatzker VI fractures. Patients were followed up to a mean of 3.9 years. Analysis showed that the ability to achieve fracture reduction was negatively influenced by time to theatre, with the odds of achieving reduction decreasing 17% with each subsequent day post injury (p = 0.002). Furthermore, an increased time to theatre was associated with a reduced Lysholm score at one year (p = 0.01). The ability to achieve fracture reduction did not influence PROMs within the study period. We conclude that delay in surgical fixation negatively affects fracture reduction in TPF and may delay recovery. However, residual articular step does not necessarily influence PROMs over the mid-term.

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Aims: The primary aim of this study was to assess the effect of time to surgery on fracture reduction, assessed as residual articular step, in cases of tibial plateau fracture (TPF). The secondary aim was to assess the effect of pre-operative demographics and residual articular step on patient reported outcomes (PROMs) following TPF. Method: Between 2006 and 2017 all surgically treated TPF patients managed by a single surgeon at our institution were prospectively consented for the study of fracture outcomes. Timing to surgical intervention, reduction of articular step, age, gender, medical background, fracture classification, mechanism of injury and PROMs (Lysholm Scores and Knee Injury and Osteoarthritis Outcome Scores (KOOS)) were recorded and analysed. Reduction of articular step, defined as <2mm, was assessed by a single blinded examiner using measurements on plain radiographs on PACS. Results: One hundred seventeen patients were enrolled, 52 with Schatzker II, four with Schatzker IV and 61 with Schatzker VI fractures. Patients were followed-up to a mean time of 3.9 years. The ability to achieve fracture reduction was negatively influenced by time to theatre with the odds of achieving reduction decreasing 17% each day post-injury (p = 0.002). An increased time to theatre was associated with reduced Lysholm scores at the one-year mark (p = 0.01). The ability to achieve fracture reduction did not influence PROMs within the study period. Conclusion: Delay in surgical fixation negatively affects fracture reduction in TPF and may delay recovery. However, residual articular step did not influence the investigated PROMs in the cohort investigated over the mid-term (mean of 3.9 years).

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