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tibial plateau fracture
A tibial plateau fracture is a bone fracture or break in the continuity of the bone occurring in the proximal part of the tibia or shinbone called the tibial plateau; affecting the knee joint, stability and motion.
The tibial plateau is a critical weight-bearing area located on the upper extremity of the tibia and is composed of two slightly concave condyles (medial condyle and lateral condyle) separated by an intercondylar eminence and the sloping areas in front and behind it. It can be divided into three areas: the medial tibial plateau (the part of the tibial plateau that is nearer to the center of the body and contains medial condyle), the lateral plateau (the part of the tibial plateau that is farthest away from the center of the body and contains the lateral condyle) and the central tibial plateau (located between the medial and lateral pleateaus and contains intercondylar eminence).
Depending on the injury pattern, lesions may be restricted to the tibia or may have significant soft tissue injury as well as meniscal and ligamentous injuries to the knee. However, a standard tibial plateau fracture involves either cortical interruption, depression or displacement of the articular surfaces of the proximal tibia without significant injury to the capsule or ligaments of the knee.
== Epidemiology ==
Tibial plateau fractures constitute 1% of all fractures. Peak age is 30–40 years old in men and 60-70 in women. Approximately half of the patients who sustain a tibial plateau fracture are aged over 50 years old.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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