1 Department for Foot and Ankle Surgery Nuremberg and Rummelsberg, Location Hospital Rummelsberg, Rummelsberg 71, 90592 Schwarzenbruck, Germany. Electronic address: martinus.richter@sana.de.
2 Department for Foot and Ankle Surgery Nuremberg and Rummelsberg, Location Hospital Rummelsberg, Rummelsberg 71, 90592 Schwarzenbruck, Germany.