Posterolateral corner of tibia. Develop the interval between the popliteus muscle and the biceps femoris muscle. Reflect the soleus muscle origin from the proximal tibia. (Redrawn from Frosch KH, Balcarek P, Walde T, Stürmer KM: A new posterolateral approach without fibular osteotomy for the treatment of tibial plateau fractures, J Orthop Trauma 24:515, 2010.) SEE TECHNIQUE 1.38.