Objective: The gastrocnemius muscle flap is the most commonly used reconstruction option for the defects of the upper third lower limb. This flap has an important role in filling the dead space or dealing with osteomyelitis, if present. However, the arc of rotation renders the flap inadequate for both the lateral and superior knee joint and the patellar region. Therefore, in cases with large defects around the knee, there are various methods to improve the extended gastrocnemius muscle flap. These methods can extend the surgery period and jeopardize flap viability. In this article we want to describe our experiences of chimeric flap elevating by adding the medial sural artery perforator fasciocu-taneous propeller flap to the muscle flap for the reconstruction of the knee region, especially the lateral side where gastrocnemius muscle flap cover is insufficient.