Fig. 1From: Influence of change of tunnel axis angle on tunnel length during double-bundle ACL reconstruction via the transportal techniqueDuring femoral tunneling procedure using curved guide, the change of intra-articular tunnel orientations could be allowed by the certain degrees of guide’s movement within the intercondylar notch space. a First, curved guide is positioned for targeting the intended tunnel position. b Then, the guide can be rotated within the intercondylar notch spaceBack to article page