Anterior knee pain (AKP) is a common complication following intramedullary (IM) nailing of a tibial shaft fracture. The purpose of this prospective study was to determine if there is an association between AKP and nail position. The investigators have analyzed postoperative outcome results and the possible relationship between AKP according to the visual-analog scale (VAS) scale, and nail position marked as a distance from the tip of the nail to the tibial plateau (NP) and tuberositas tibiae (NT), measured postoperatively on L-L knee X-rays.