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Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 257 - 257
1 Jul 2011
Mehin R O’Brien P Brasher P Broekhuyse HM Blachut P Meek RN Guy P
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Purpose: Problem: Tibia plateau fractures may lead to end-stage post-traumatic arthritis that requires reconstructive surgery. The incidence of this problem is unknown but has been estimated at 20–40% by studies that were limited by small sample sizes, potential follow-up bias, and the limitations of using radiographic arthritis as a chosen outcome (not correlated to function). The use of administrative data bases to follow the care of a large number patients for robust end points such as surgery, offers an opportunity to address these limitations. Purpose: to determine the minimum ten year incidence of post-traumatic arthritis necessitating reconstructive surgery following tibia plateau fractures.

Method: We queried our prospectively collected Orthopedic Trauma Data base to identify operatively treated patients with tibia plateau fractures. These cases were cross-referenced with the data from our Province’s administrative health database and tracked over time for the performance of reconstructive knee surgery. Each individual’s exposure/follow-up period was limited by end of health plan coverage on record or date of death from vital statistics data. The minimum follow-up was ten years.

Results: Between 1987 and 1994, 378 patients with a tibia plateau fracture were treated at our institution. The average age was 46 years (sd=18, range 14–87), while 56% of patients were males. Seventeen out-of-Province residents were excluded, along with forty-six others whose “Medical Services Plan” numbers could not be identified. Of which seven were WCB patients and one who was affiliated with the military. The study cohort therefore consisted of 311 patients with 314 tibia plateau fractures. Four individuals (1.3%) we treated tibia plateau fractures have required reconstructive knee surgery for end-stage post-traumatic knee arthritis at 10 years. Of these 3 of 4 were type VI fractures and 1 of 4 was open.

Conclusion: Patients who require surgical treatment of tibia plateau fractures may be counseled on their long-term risk of requiring reconstructive knee surgery for endstage knee arthritis based on a clinical study. Based on our findings, the proportion of those who have required a total knee surgery, ten years following their injury, is lower than previously published.