Osteotomy plate for performing an osteotomy procedure using the same

A fixation plate for securing together adjacent first and second bone sections of a bone with a bone cut extending thereinbetween, the fixation plate comprising: a first fixation portion having a bone interface side superposable against the first bone section and a second fixation portion extending away from the first fixation portion, the second fixation portion including a holding portion shaped to conform to an outer surface of the second bone section when superposed thereto and when the first and second bone sections are at a predetermined angular orientation relative to each other such that a snug fit of the second bone section with the holding portion provides an indication that the first and second bone sections are at the predetermined angular orientation relative to each other.