The invention concerns a surgical implant (1) intended to be attached on bone bodies (2, 3) of a patient, via fastening means (4, 5, 6, 7) in order to hold in position said bone bodies (2, 3) relative to each other, said surgical implant (1) including a main body (13) formed by a distal plate (11) which is extended by a proximal tab (12), the distal plate (11) extending substantially according to a distal extension plane (Pd), the proximal tab (12) extending substantially along a proximal extension plane (Pp) intersecting the distal extension plane (Pd), the proximal tab (12) and the distal plate (11) being linked by a bending area (19), the surgical implant (1) being characterized in that the bending area (19) has the highest thickness of the main body (13).