CPT® Code 27769

Open treatment of a posterior malleolus fracture involves a surgical procedure aimed at correcting a specific type of fracture located at the back of the ankle joint, known as the posterior malleolus. This procedure is performed through a surgical incision made on the posterolateral aspect of the ankle, which allows the surgeon to access the fractured area while taking precautions to avoid damaging the sural nerve, a critical nerve that runs in close proximity to the surgical site. During the operation, the surgeon retracts the peroneal and Achilles tendons to gain a clear view of the fracture. The primary goal of this treatment is to realign the fractured bone fragments into their proper anatomical position, which is essential for restoring normal function and stability to the ankle joint. If the fracture is unstable or misaligned, internal fixation may be necessary. This involves the placement of screws, pins, or other fixation devices to hold the bone fragments securely in place. Typically, one or two cancellous screws are inserted from a posterior to anterior direction into the posterior malleolus, although alternative techniques may involve placing screws from anterior to posterior or using lag or cortical screws through a separate incision at the front of the ankle. The success of the procedure is confirmed through visual inspection and radiographic imaging, ensuring that the fracture has been optimally reduced to its normal anatomical position.