Determination of mandibular distraction osteogenesis most suitable parameters. An experimental study

Area of Science:

• Orthopedic surgery
• Regenerative medicine
• Craniofacial reconstruction

Background:

• Distraction osteogenesis is a method for bone regeneration.
• Optimizing protocols for latency, distraction speed, and consolidation is crucial for success.

Purpose of the Study:

• To investigate mandibular distraction osteogenesis.
• Determine optimal parameters for latency, distraction speed, and consolidation periods.

Main Methods:

• Twenty-seven dogs underwent bilateral mandibular distraction osteogenesis with 54 distractors.
• Six protocol variants tested latency, distraction period, and speed.
• Histological and radiographic analysis at multiple time points (0-55 days).

Main Results:

• Optimal parameters identified: 5-day latency, 6-week consolidation.
• Distraction speed: 1 mm/day for <20 mm, 3 mm/day for >20 mm.
• Efficient osteogenic parameters established.

Conclusions:

• Histological analysis revealed cellular participation in bone formation.
• Sequential study observed osteocytes, osteoclasts, and matrix development.
• Understanding cellular dynamics aids in refining distraction osteogenesis techniques.