PROBLEM TO BE SOLVED: To provide an osteosynthesis system that uses an intramedullary nail and bone screws for increasing the load bearing capacity of tubular bones during healing of fractures of the tubular bones.SOLUTION: An intramedullary nail includes an elongated nail body with two end sections and a middle section therebetween. The nail body has at least one transverse screw hole proximate to the end section for screwing in at least one bone screw 25, 27 into each end section. Furthermore, the nail body is non-reamed, or has a through-channel arranged in the center in the cross section of the nail body for pushing through a guide element. In the middle section, at least two transverse one-sided screw holes at a distance from each other in the longitudinal direction of the nail body for screwing in bone screws 16 are placed proximate to a fracture. All one-sided screw holes are formed as inlays, and the bone screws with an initial thread can be screwed into the bone and screw holes while forming threads, and they securely join the bone and intramedullary nail.COPYRIGHT: (C)2016,JPO&INPIT【課題】管状骨の骨折の治療過程の間、管状骨の荷重負担能力を増加させる、髄内釘および骨用ネジを用いた骨接合システムを提供する。【解決手段】髄内釘は2つの端部およびそれらの間の中間部を有し、細長い釘本体を備える。釘本体は、各端部に少なくとも1つの骨用ネジ25、27をねじ込むための、端部に近い少なくとも1つの横ネジ穴を有し、更に釘本体は、非中空、または、ガイド要素を押し通すために釘本体の横断面において中心に配置される通過経路を有し、中間部において、釘本体の長手方向において互いに距離を置いた、骨用ネジ16をねじ込むための少なくとも2つの片側横ネジ穴が、骨折部の近くに配置され、全ての片側ネジ穴は、はめ込み部材として形成され、当初のネジ山を有する骨用ネジは、骨およびネジ穴にネジ切りを形成すると共にねじ込まれ、骨用ネジが安全に骨および髄内釘を接続する。【選択図】図1b