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. 2017 Aug 15;5(8):2325967117723895.
doi: 10.1177/2325967117723895. eCollection 2017 Aug.

Do Tibial Plateau Fractures Worsen Outcomes of Knee Ligament Injuries? A Matched Cohort Analysis

Mark E Cinque  1 , Jonathan A Godin  1   2 , Gilbert Moatshe  1   3 , Jorge Chahla  1 , Bradley M Kruckeberg  1 , Jonas Pogorzelski  1 , Robert F LaPrade  1   2
Affiliations

Do Tibial Plateau Fractures Worsen Outcomes of Knee Ligament Injuries? A Matched Cohort Analysis

Mark E Cinque et al. Orthop J Sports Med. .

Abstract

Background: Tibial plateau fractures account for a small portion of all fractures; however, these fractures can pose a surgical challenge when occurring concomitantly with ligament injuries.

Purpose/hypothesis: The purpose of this study was to compare 2-year outcomes of soft tissue reconstruction with or without a concomitant tibial plateau fracture and open reduction internal fixation. We hypothesized that patients with a concomitant tibial plateau fracture at the time of soft tissue surgery would have inferior outcomes compared with patients without an associated tibial plateau fracture.

Study design: Cohort study; Level of evidence, 3.

Methods: Forty patients were included in this study: 8 in the fracture group and 32 in the matched control group. Inclusion criteria for the fracture group included patients who were at least 18 years old at the time of surgery and sustained a tibial plateau fracture and a concomitant injury of the anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament, or fibular collateral ligament in isolation or any combination of cruciate or collateral ligaments and who subsequently underwent isolated or combined ligament reconstruction. Patients were excluded if they underwent prior ipsilateral knee surgery, sustained additional bony injuries, or sustained an isolated extra-articular ligament injury at the time of injury. Each patient with a fracture was matched with 4 patients from a control group who had no evidence of a tibial plateau fracture but underwent the same soft tissue reconstruction procedure.

Results: Patients in the fracture group improved significantly from preoperatively to postoperatively with respect to Short Form-12 (P < .05) and Western Ontario and McMaster Universities Osteoarthritis Index total scores (P < .05). The Lysholm (P = .075) and Tegner scores (P = .086) also improved, although this was not statistically significant. Patients in the control group improved significantly from preoperatively to postoperatively across all measured scores. A comparison of the postoperative results between the 2 groups showed no statistically significant difference.

Conclusion: The presence of a tibial plateau fracture in conjunction with a ligamentous knee injury did not have a negative effect on postoperative patient-reported outcomes. Patient-reported outcome scores after surgery in both the fracture and control groups improved beyond the minimally clinically important difference, indicating that the presence of a fracture did not detract from the outcomes observed in patients without fractures undergoing concomitant ligament reconstruction.

Keywords: knee; ligament reconstruction; outcomes; tibial plateau fracture.

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Conflict of interest statement

One or more of the authors has declared the following potential conflict of interest or source of funding: G.M. receives research support from South Eastern Norway Health Authorities and Arthrex. R.F.L. receives royalties from Arthrex and Smith & Nephew; is a paid consultant for Arthrex, Ossur, and Smith & Nephew; and receives research support from Arthrex, Linvatec, Ossur, and Smith & Nephew.

Figures

Figure 1.
Figure 1.
(A) Coronal magnetic resonance imaging scan of a patient with an anterior cruciate ligament injury with a concomitant tibial plateau fracture. (B) Six months postoperatively, an anteroposterior plain radiograph demonstrates tibial plateau fixation.
See this image and copyright information in PMC

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