A bone plate (1) with a longitudinal axis (2), a bottom surface (10) facing a bone and a top surface (11) and comprisinga) an oblong base plate (3) with a anchoring portion (21) extending towards a first end (26) of the base plate (3) and a coupling portion (23) extending towards a second end (27) of the base plate (3)；b) a sliding plate (6) connected with said coupling portion (23) which is slideable parallel to said longitudinal axis (2)； wherebyc) at least one first plate hole (4) is located in said anchoring portion (21) and at least one second plate hole (13) is located in said sliding plate (6)；d) said base plate (3) and/or said sliding plate (6) is provided with retaining means (5) limiting a motion of said sliding plate (6) relative to said base plate (3) perpendicular to said top surface (11) in such manner that the sliding quality between said sliding plate (6) and said base plate (3) is maintained； ande) said at least one second plate hole (13) of said sliding plate (6) is provided with rigid locking means (12) allowing a rigid connection between a screw head (8) of a bone screw (7) insertable therein.
