Septoplasty involves removal or weakening of the portion of the septum that is deviated. The septum is also the main support structure that gives our nose its shape.
When the Septoplasty had been too aggressive in removing or weakening the septum, structural weakening can occur. This may sometimes take time to manifest itself. With time, not only is there a worsening saddle deformity, the breathing function can also get worse as the nose starts to collapse on itself.
To fix a saddle nose requires reconstruction of the septum. This usually means harvesting cartilage from the rib to repair the septum via an open septorhinoplasty.