Anterior tendon displacement of the inferior oblique for DVD.

The effect of grading the anteriorization of the posterior portion of the inferior oblique muscle tendon fibers, relative to the insertion of the inferior rectus, was assessed for patients with dissociated vertical deviation (DVD). The placement of these fibers was varied dependent on the degree of preoperative DVD. The results from the graded group were compared to a group of patients with DVD that always received the same amount of anteriorization regardless of the degree of preoperative DVD. The results showed that, in general, anteriorization of the inferior obligue muscle tendon fibers to the level of insertion of the inferior rectus was an effective treatment for DVD. In addition, grading the anteriorization of the posterior portion of the inferior oblique muscle tendon fibers significantly decreased residual postoperative deviation.