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Knee injury is one of the most common reasons people see their doctors. Your knee is a complex joint with many components, making it vulnerable to a variety of injuries. Many knee injuries can be successfully treated with simple measures, such as bracing and rehabilitation exercises.
The knee has three compartments: medial (inside of knee), patellofemoral (between knee cap and femur), and lateral (outside section of knee joint). The most common form of osteoarthritis is a tri-compartmental arthritis that affects all 3 compartments of the knee. Therefore, it makes sense that the traditional knee replacement is a tri-compartmental arthroplasty that replaces all 3 compartments of the knee.