Evaluation of Rhombic Three Dimensional Plate in Fixation of Displaced Low Subcondylar Mandibular Fractures

Abstract

The aim of this study was to evaluate the rhombic three-dimensional plate in fixation of displaced low subcondylar mandibular fractures clinically and radiographically. MATERIALS AND METHODS: This is a prospective, interventional, single armed case series study that was carried out on twelve patients with displaced low subcondylar mandibular fracture. Open reduction and internal fixation was utilized to treat those fractures using rhombic 3D plate, patients were collected from the department of Oral and Maxillofacial surgery, Faculty of Dentistry, Tanta University. All cases were treated with retromandibular approach. Post-operative evaluation: all patients underwent regular follow up for six months. The following parameters were evaluated: a. Maximal mouth opening, b. Lateral and protrusive mandibular movements, c. Chewing and occlusion, d. Clicking and tenderness of TMJ, e. Vertical height of the ramus, f. Anteroposterior angulation of the condyle. RESULTS: 6 months after the operation, the functional parameters returned to normal, with an average mouth opening of 43.6 mm, protrusion of 9.6 mm, and laterotrusion of 10.5 mm. No clicks or tender TMJ, normal function of facial nerve. Radiographic controls showed good fracture alignment, no plate fracture, bending or loose screws were observed. CONCLUSIONS: The clinical and radiographical data suggested that the rhombic three-dimensional plate is suitable for treatment of condylar fractures and provided stable fixation.

Open Reduction and Internal Rigid Fixation of Unilateral Displaced Subcondylar Fractures Using a Single Trapezoidal Plate Versus the Traditional Two Miniplates. A Comparative Study.

“…The results of our study give a great support to those of a recent study done in 2018, by Mahmoud F.et al, (37) who evaluated the efficiency of application of the 3D Rhombic plates in the fixation of displaced low subcondylar fractures and concluded that the 3D Rhombic plates were compatible for treatment of condylar fractures and provided satisfactory stable fixation. (38) in 2018 in their prospective randomized controlled clinical trial compared the outcomes of the 3D rhombic plates with the 2.0 miniplates in management of subcondylar fractures.…”

“…(11,17,18) Regarding mandibular movements concerning the MMO, ipsilateral, contralateral and protrusive excursions, were satisfactory in all patients of both groups and were regained gradually throughout the follow-up intervals with no statistically significant differences and gives a great support and similarity to that reported in the available literature. (34)(35)(36)(37)(38) In the present study, the Mandibular mobility in-dex and the Helkimo index of mandibular dysfunction showed superior results in the trapezoidal plate group compared to the mini-plates group (P=0.303 and P = 0.528 respectively) and both groups showed a significant improvement by time. Although the difference between groups was statistically insignificant, these results provide superiority for the single trapezoidal plate regarding the rigidity of fixation and postoperative fracture stability.…”

Unilateral condylar fracture with review of treatment modalities in 30 cases - An evaluative study

“…[ 1 2 ] Injury to the condylar region deserves special consideration apart from the rest of the mandible because of its unique anatomy and healing potential. [ 3 ]…”