Zürich Pediatric Maxillary Distractor

Transcription

1 Distraction Osteogenesis Zürich Pediatric Maxillary Distractor AN INTRAORAL, UNI-DIRECTIONAL DEVICE FOR THE DISTRACTION OF THE MAXILLA

2 Indications & Advantages Zürich Pediatric Maxillary Distractor Developed in cooperation with Prof. Dr. H. F. Sailer Dept. of Cranio-Maxillofacial Surgery University Hospital Zürich, Switzerland An intraoral, uni-directional device for the distraction of the maxilla This extremely miniaturized distractor has a cylindrical shape with a longitudinal gliding hole. The 0.6 mm microplates are easy to bend for optimal fixation. The fixation plate with its 30 angulation guarantees an easy adaptation to the anatomical conditions. 1.5 mm microscrews for monocortical osteosynthesis are recommended, length 5-7 mm. Minimal bending of the microplates is required. For bending, the pliers are recommended. 100% flexibility of the activation arm by cardanic joint attachment. Optionally further adaption flexibility by bendable flexible activation arm. Two turns of 360 obtain 1 mm distraction.

3 3 Indications: Advantages: Patients with severe maxillary deficiency where an advancement of up to 15 mm is required. Intraoral application no visible scars. Precise placement of device. Contraindications: Patients with very soft bone. Monocortical 1.5 mm microscrews no risk of damage to developing teeth and nerves. Improved patient s comfort and consequently better compliance.

4 Clear & intelligible Intraoperative Approach: Bone removed at the zygomatic buttress Tooth bud of the canine A high LeFort I Osteotomy is performed avoiding damage to non erupted teeth, especially the high positioned canine (fig. 1). The pterygoid process is separated from the maxillary tuberosity as well as from the nasal septum. The maxilla is gently mobilized without down fracturing. Now some bone is removed at the zygomatic buttress (fig. 1) for proper placement of the distraction device. Fig. 1 The distractor is opened for somewhat more than the desired amount of maxillary advancement and then adapted to the bone surface of the zygoma and the alveolar process (fig. 2). By turning the activator with the patient-screwdriver clockwise the distractor is closed and the maxilla moves forward (fig. 3). It is recommended to advance at the time of surgery already 3-5 mm and then every day 0.5 mm to 1 mm on both sides.

5 5 Fig. 2 Fig. 3 Please note: The plates are carefully bent with a pair of bending pliers ( ) Caution: Extreme care must be taken to bend only the plates of the distractor. Do not attempt to bend any portion of the distraction body.

6 Complete & flexible Ordering Details Zürich Pediatric Maxillary Distractor Distraction length 15 mm, flexible activator, left Distraction length 15 mm, flexible activator, right Distraction length 15 mm, rigid activator, left Distraction length 15 mm, rigid activator, right Distractor with flexible activator 1:1 scale Distractor with rigid activator 1:1 scale

7 7 Screws Set Recommendation Centre Drive screws 1.5 x 3.5 mm (5 each) Centre Drive screws 1.5 x 5 mm (5 each) Centre Drive screws 1.5 x 6 mm (5 each) Centre Drive screws 1.5 x 7 mm (5 each) Centre Drive emergency screws 1.8 x 5 mm (5 each) Cross Drive screws 1.5 x 3.5 mm (5 each) Cross Drive screws 1.5 x 5 mm (5 each) Cross Drive screws 1.5 x 6 mm (5 each) Cross Drive screws 1.5 x 7 mm (5 each) Cross Drive emergency screws 1.8 x 5 mm (5 each) Insert module, purple Storage module, purple Lid for storage module Lid for distraction module Insert empty, 2 sections (double height) Handle, only Centre Drive blade for handle Cross Drive blade for handle Modelling pliers (2 pcs. recommended) Plate holding forceps Lindorf plate holding instrument Patient screwdriver, straight Patient screwdriver, angled Twist drills 1.1 x 50 x 7 mm, cylindrical (5 each) alternative: Twist drills 1.1 x 50 x 7 mm, Stryker attachment (5 each) optional: Twist drill 1.1 x 105 x 20 mm for the transbuccal approach, Stryker attachment (1 each)

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