Abstract: Objective　 To study a method of making tunnel reduction and fixation of condylar neck and base fractures by using intraocular lens combined with small incision approach, and to observe its clinical effect. Methods　From January 2012 to January 2018, 30 cases of middle and low condylar neck fracture were selected for surgical treatment by using the ototragus combined with the submandibular small incision approach to create a tunnel. Results　1) Normal occlusal relationship was restored in 30 patients during the operation, and no occlusal disorder was found in postoperative review. 2) The anova of repeated measurement design data was used for the gap-mouth degree analysis, and the difference in gap-mouth degree was statistically significant (P<0.05) The reexamination was carried out before the operation and 1 to 12 months after the operation. The average interincisor distances were respectively (5.43averag) mm，(14.83verage) mm，(19.67verage) mm，(32.20verag) mm，(32.23verage) mm，and (32.4(verag) mm. The gap-mouth degree of the patients recovered gradually after surgery. 3) CT reexamination 1, 3, 6 and 12 months after surgery showed that the fracture healed in contrapuntal position, and there was no loosening, deformation or displacement of the titanium plate. 4) The scar was located in the ear and under the jaw, and the position was concealed. 5) One patient presented mild angulation after surgery, and was treated with neurotropic therapy. The symptoms disappeared 6 months after the surgery. Conclusion　 Intraocular lens combined with submandibular small incision approach for the treatment of condylar neck and base fractures has adequate exposure, accurate reduction, which achieves the goal of scar concealment, early mouth function training and recovery of occlusion, and effective protection for important anatomical structures like facial nerves, superficial temporal vessels and lateral pterygoid muscles. It provides a new reference for the choice of operative route of condylar neck and base fractures.

Key words: condyle fracture, Rigid internal fixation, minimally invasive