Surgical Treatment of Mandible Fracture Using Unsintered Hydroxyapatite/Poly L-Lactide Composite Fixation System

Area of Science:

• Biomaterials Science
• Orthopedic Surgery
• Maxillofacial Surgery

Background:

• Absorbable plates are increasingly used for facial fractures.
• Mandibular fractures require robust fixation due to high applied forces.
• Unfavorable fracture patterns necessitate strong, reliable fixation systems.

Purpose of the Study:

• To assess the clinical efficacy and utility of the unsintered hydroxyapatite (u-HA)/poly (L-lactide) (PLLA) composite fixation system (OSTEOTRANS) for mandibular fractures.
• To evaluate the suitability of this composite system for rigid fixation in mandible fracture repair.

Main Methods:

• A clinical study involving 13 patients with mandible fractures.
• Radiographic confirmation of fractures using X-ray and CT scans.
• Surgical fixation using OSTEOTRANS plates and OSTEOTRANS-MX screws.
• Follow-up assessments at 1 week, 1, 3, and 6 months post-surgery.

Main Results:

• All 13 patients completed follow-up without complications like malocclusion or foreign body sensation.
• Patients reported satisfaction with the treatment outcomes.
• Radiographic and physical examinations confirmed good bone approximation and union status.

Conclusions:

• The OSTEOTRANS u-HA/PLLA composite fixation system is clinically effective and suitable for treating mandibular fractures.
• This system provides appropriate rigid fixation for the biomechanical demands of mandibular fracture repair.