Modified closing-opening wedge osteotomy for the treatment of sagittal malalignment in thoracolumbar fractures malunion.

Background Context: Many techniques have been described for the surgical treatment of rigid posttraumatic thoracolumbar kyphosis, but none is well adapted to the modified shape of the wedged vertebra.

Purpose: The study aimed to describe the modified closing-opening wedge osteotomy (MCOWO), a new osteotomy technique that adapts to the triangular shape of the wedged apical vertebra of the deformity.

Study Design: A retrospective assessment of the degree of correction before and after the MCOWO was carried out.