Assessment of clinical effects using the transparotid approach for open treatment of condylar fractures

Abstract

Objective To evaluate the clinical effects of the transparotid approach for open treatment of condylar fractures. Methods In this study, 31 patients with mandibular condylar fractures (36 sides) , were treated using a transparotid approach for open treatment of condylar fractures. Follow-up examinations and postoperative CT scan were performed. The degree of mouth opening, occlusal relationship, facial nerve function, and other complications in the patients were assessed and evaluated. Results 24 patients with mandibular condylar fractures (29 sides) were treated through the transparotid approach with rigid internal fixation using miniplates; 7 patients whose condyle fracture′ fragments were removed and had arthroplasty of temporomandibular joints. Follow-up examinations were performed for a minimum of 6 months and a maximum of 18 months (average 11.3 months) after surgical treatment. Postoperative CT scan showed that all the condyles had been repositioned and fixed in the normal position; Occlusal function recovered well and facial symmetry was achieved in all of the patients; 4 patients developed Ⅰor Ⅱgrade of limited mouth opening in the early period, and returned to normal after serial trainings; 5 patients developed palsy of the facial nerve that was completely recovered after 8 weeks; 1 patient developed a fistula of the parotid gland who had a second wound healing after bandage treatment for 2 weeks; 4 cases developed traumatic articular diseases that the relevant symptoms such as joint snapping and ache. Conclusion The transparotid approach for the open treatment of condylar fractures is feasible and safe, also worthy of clinical application and popularization. Key words: Mandibular condyle; Fractures, bone; Oral surgical procedures; Transparotid approach