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Prediction of Concomitant Lateral Meniscus Injury with a Tibia Plateau Fracture Based on Computed Tomography Assessment
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Wonchul Choi, Yunseong Choi, Go Tak Kim
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J Korean Fract Soc 2018;31(4):132-138. Published online October 31, 2018
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DOI: https://doi.org/10.12671/jkfs.2018.31.4.132
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 Abstract
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This study examined whether any fracture pattern shown in computed tomography (CT) scan is associated with the presence of lateral meniscus (LM) injury in a tibia plateau fracture.
MATERIALS AND METHODS
Fifty-three tibia plateau fractures with both preoperative CT and magnetic resonance imagings (MRI) available were reviewed. The patient demographics, including age, sex, body mass index, and energy level of injury were recorded. The fracture type according to the Schatzker classification, patterns including the lateral plateau depression (LPD), lateral plateau widening (LPW), fracture fragment location, and the number of columns involved were assessed from the CT scans. The presence of a LM injury was determined from the MRI. The differences in the factors between the patients with (Group 1) and without (Group 2) LM injuries were compared and the correlation between the factors and the presence of LM injury was analyzed.
RESULTS
The LM was injured in 23 cases (Group 1, 43.4%) and intact in 30 cases (Group 2, 56.6%). The LPD in Group 1 (average, 8.2 mm; range, 3.0–20.0 mm) and Group 2 (average, 3.8 mm; range, 1.4–12.1 mm) was significantly different (p < 0.001). The difference in LPW of Group 1 (average, 6.9 mm; range, 1.2–15.3 mm) and Group 2 (average, 4.8 mm; range, 1.4–9.4 mm) was not significant (p=0.097). The other fracture patterns or demographics were similar between in the two groups. Regression analysis revealed that an increased LPD (p=0.003, odds ratio [OR]=2.12) and LPW (p=0.048, OR=1.23) were significantly related to the presence of a LM tear.
CONCLUSION
LPD and LPW measured from the CT scans were associated with an increased risk of concomitant LM injury in tibia plateau fractures. If such fracture patterns exist, concomitant LM injury should be considered and an MRI may be beneficial for an accurate diagnosis and effective treatment.
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Citations
Citations to this article as recorded by  - The value of magnetic resonance imaging in the preoperative diagnosis of tibial plateau fractures: a systematic literature review
Gregoire Thürig, Alexander Korthaus, Karl-Heinz Frosch, Matthias Krause
European Journal of Trauma and Emergency Surgery.2023; 49(2): 661. CrossRef
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