Dr. Ian Glenn and Dr. Todd Ponsky give a two minute review of "posterior tracheopexy for severe tracheomalacia," and article published in the Journal of Pediatric Surgery. Dr. Hester Shieh and colleagues performed posterior tracheopexy on patients who had significant posterior intrusion of the trachea, with significant improvement in clinical symptoms. 
Article: http://dx.doi.org/10.1016/j.jpedsurg.2017.03.018