The tibia offers many indications through the diaphysis. Despite of the variable proximal locking supply, a multifunctional targeting arm helps, which is easy to use. During the operation you do not need to change the aiming attachments according to the locking directions. The aiming arm could be easily rotate to the right direction. For the right or left tibia, the same universal elements are required, only the right side of the attachment must be used. The distal targeting can be done with the support of X-ray image intensifier by hand.