EXPERIENCE OF USING INDIVIDUAL TITAN IMPLANTS IN NASAL RECONSTRUCTION SURGERY

Abstract

Aim. Clinical use of implants based on patient’s individual topographic anatomical features. Materials and methods. The paper describes two case reports involving the correction of nasal anatomical structure affected during the surgery for facial cancer. Using selective laser sintering technology we manufactured 2 intricate 3D-deformed individual implants from Ti70V30 alloy powders. Implant design was based on CAT/MRT data. Clinical use was conducted on the premises of the department of head and neck surgery in Chelyabinsk Regional Oncological Dispensary. Results. In the fi rst case we obtained an impressive functional result – huge and wide nasal cavity, nose skeleton, and easy nasal breathing. In 30 days we performed endoscopic video-analysis (via nasal passages) which showed that 65% of implant surface was covered with mucosa. In the second case, the designed implant allowed the combined surgery including excision of soft tissues, atypical resection of the upper jaw (left part) and the left cheek, left maxillary sinusotomy and reconstruction of the left part of the nose and the left cheek with implant and skin fl ap. Conclusion. Clinical use revealed pros and contras of the applied technology. Among contras there are relatively high cost of technology, high standards of competency of a surgeon, a programmer and engineers. Pros include free modeling and setting the implant parameters before operation, exact match between implant size/shape and topographic anatomical data of a certain patient.

Keywords

• facial cancer
• nasal anatomical structure
• selective laser sintering
• individual implant
• ti70v30 titan alloy