The patients indicated for surgical treatment fell into two groups according to the technique used as follows : minimally invasive plate osteosynthesis ( MIPO ) with a locking compression plate ( LCP ; Synthes , Switzerland ) ; depending on the fracture type and course of fracture line , either a straight narrow or a Philos or a metaphyseal LCP was used ( group 1 ) ; and intramedullary nailing ( EHN , Synthes , Switzerland ) ( group 2 ) .