A Study On Three-dimensional Morphological Analysis Of The Tibial Plateau Fracture Lines

Objective:To reconstruct the three-dimensional model of tibial plateau fracture and to analyze the characteristics of fracture lines in order to guide clinical practice.Methods:A retrospective study was conducted on 133 cases of tibial plateau fractures.The original imaging data of patients were collected and used to reconstruct fracture model in Mimics 17.0.The reconstructed fracture model was reduced and fitted to the standard template and all fracture lines were delineated and superimposed on the standard template in3-Matic 9.0.Results:Most patients of tibial plateau fracture were aged between 43 and 52 years(33.1%).The fracture lines of lateral tibial plateau(81.8%)is more than that of medial plateau(31.4%).Fracture lines tend to occur mainly on the inner part of the lateral condyle that extended to the junctional zone between Gerdy’s tubercle and the tibial tubercle(75.9%),as well as intercondylar eminence(71.5%).There are three secondary fracture lines,One runs from the intercondylar eminence to the front of the fibular head(21.2%),the second line takes an outer arc along the outer edge of the anterolateral tibial plateau(13.8%),The third line runs from the anteromedial to the posterolateral that extended to lateral tibial plateau(15.3%).Fracture lines are less likely to occur in the tibial tubercle(13.1%),the Gerdy’s tubercle(10.9%),the posteromedial fragment(8.6%),and articular facet for fibular(7.3%).Conclusion:Tibial plateau fracture has its own predilection sites.In clinical work,individual analysis and treatment are needed instead of relying entirely on a certain fracture type.