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  • Title: A new 3-dimensional plate for transoral endoscopic-assisted osteosynthesis of condylar neck fractures.
    Author: Lauer G, Pradel W, Schneider M, Eckelt U.
    Journal: J Oral Maxillofac Surg; 2007 May; 65(5):964-71. PubMed ID: 17448849.
    Abstract:
    PURPOSE: Transoral surgical treatment of condylar neck fractures minimizes the risk of damaging the facial nerve. But fracture reduction and plate osteosynthesis remain challenging, especially when using 2 plates, although endoscopic assistance has proven helpful. To further improve and simplify osteosynthesis at the condylar neck, a new delta-shaped osteosynthesis plate that mimics the function of 2 plates has been developed. The present clinical follow-up study was conducted to evaluate this new plate. PATIENTS AND METHODS: A total of 16 patients with 19 condylar neck fractures (3 Spiessl I, 13 Spiessl II, 1 Spiessl III, 2 Spiessl IV) and 3 bilateral fractures were treated through an endoscopic-assisted transoral approach. After reduction, the plate was applied, with the screws inserted either transcutaneously or with angulated instruments. RESULTS: The operation time ranged between 55 and 120 minutes. More than 6 months after the operation, functional parameters returned to normal, with an average mouth opening of 41 mm, protrusion of 5 mm, and laterotrusion of 6 mm. Radiographic controls showed good fracture alignment in 15 of 19 cases immediately after the operation, and in 14 of 19 cases 6 months after the operation. No plate fracture or bending was observed. In 3 patients, loose screws were found on plate removal. CONCLUSIONS: The clinical data and the engineering and biomechanical background suggest that the new delta-shaped plate can be regarded as 2 miniplates. The new plate is suitable for treatment of condylar neck fractures, particularly when used in an endoscopic-assisted transoral approach.
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