I am sorry that your previous surgery was complication by a nasal septal perforation and secondary saddle deformity of the nose. Fillers only offer temporary camouflage for the saddle deformity and are associated with risks to the skin and vascular supply to the tissue. Actual correction would require nasal reconstruction rhinoplasty and closure of the nasal septal perforation simultaneously. Perforation closure depends on several factors including, size of the perforation, location, septal mucosal tissue health, infection, persistent sinus issues etc. Smaller perforation less than 1cm have a greater success rate than larger ones, though perforations can be closed generally up to 3cm. If your perforation is very large, but stable without infection, some surgeons would opt to leave it alone and reconstruct the saddle deformity with an open rhinoplasty. Ideally, best to fix the nose and perforation together, if possible. Consult with a surgeon who has experience and success with septal perforation and rhinoplasty to see if your case is favorable with regards to repair. Please contact my office if you need additional information. Best Regards.