Innovation in anterior mandibular alveolar distraction osteogenesis: Introduction of a new bone-borne distraction device and first clinical results

2012 ◽  
Vol 40 (8) ◽  
pp. e503-e508 ◽  
Author(s):  
Joachim Anton Obwegeser ◽  
Philipp Metzler ◽  
Christine Jacobsen ◽  
Wolfgang Zemann
Keyword(s):  
Distraction Osteogenesis ◽  
Clinical Results ◽  
Distraction Device ◽  
Alveolar Distraction Osteogenesis

scholarly journals Automating Skeletal Expansion: An Implant for Distraction Osteogenesis of the Mandible

2009 ◽  
Vol 3 (1) ◽  
Author(s):  
John C. Magill ◽  
Marten F. Byl ◽  
Batya Goldwaser ◽  
Maria Papadaki ◽  
Roger Kromann ◽  
...  
Keyword(s):  
Distraction Osteogenesis ◽  
Treatment Time ◽  
Patient Activation ◽  
Latency Period ◽  
Bone Lengthening ◽  
Loop Control ◽  
New Device ◽  
Distraction Device ◽  
Component Failures ◽  
Natural Healing

Distraction osteogenesis is a technique of bone lengthening that makes use of the body’s natural healing capacity. An osteotomy is created, and a rigid distraction device is attached to the bone. After a latency period, the device is activated two to four times per day for a total of 1 mm/day of bone lengthening. This technique is used to correct a variety of congenital and acquired deformities of the mandible, midface, and long bones. To shorten the treatment period and to eliminate the complications of patient activation of the device, an automated continuous distraction device would be desirable. It has been reported that continuous distraction generates adequate bone with lengthening at a rate of 2 mm/day, thereby reducing the treatment time. The device we describe here uses miniature high-pressure hydraulics, position feedback, and a digital controller to achieve closed-loop control of the distraction process. The implanted actuator can produce up to 40 N of distraction force on linear trajectories as well as curved distraction paths. In this paper we detail the spring-powered hydraulic reservoir, controller, and user interface. Experiments to test the new device design were performed in a porcine cadaver head and in live pigs. In the cadaver head, the device performed an 11 day/11 mm distraction with a root-mean-squared position error of 0.09 mm. The device functioned for periods of several days in each of five live animals, though some component failures occurred, leading to design revisions. The test series showed that the novel design of this system provides the capabilities necessary to automate distraction of the mandible. Further developments will focus on making the implanted position sensor more robust and then on carrying out clinical trials.

scholarly journals Alveolar distraction osteogenesis

2016 ◽  
Vol 11 (2) ◽  
pp. 212-213
Author(s):  
Hong-Po Chang ◽  
Tsau-Mau Chou ◽  
Yu-Chuan Tseng ◽  
Han-Jen Hsu
Keyword(s):  
Distraction Osteogenesis ◽  
Alveolar Distraction Osteogenesis

Alveolar Distraction Osteogenesis for Bone Augmentation of Severely Atrophic Ridges in 10 Consecutive Cases: A Histologic and Histomorphometric Study

2007 ◽  
Vol 78 (2) ◽  
pp. 360-366 ◽  
Author(s):  
Claudio Marchetti ◽  
Giuseppe Corinaldesi ◽  
Francesco Pieri ◽  
Marco Degidi ◽  
Adriano Piattelli
Keyword(s):  
Distraction Osteogenesis ◽  
Bone Augmentation ◽  
Histomorphometric Study ◽  
Alveolar Distraction Osteogenesis

A Custom-Made Distraction Device for Experimental Mandibular Distraction Osteogenesis

2005 ◽  
Vol 16 (4) ◽  
pp. 675-683 ◽  
Author(s):  
Muhitdin Eski ◽  
Mustafa Nisanci ◽  
Yakup Cil ◽  
Mustafa ??engezer ◽  
Ayhan ??zcan
Keyword(s):  
Distraction Osteogenesis ◽  
Mandibular Distraction ◽  
Mandibular Distraction Osteogenesis ◽  
Distraction Device ◽  
Custom Made

scholarly journals Fully-customized distraction assembly for maxillofacial distraction osteogenesis: a novel device and its experimental accuracy verification

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Sang-Hoon Kang ◽  
Hye-Jin Tak ◽  
Ha-Won Park ◽  
Jin-Ung Kim ◽  
Sang-Hwy Lee
Keyword(s):  
Distraction Osteogenesis ◽  
Reference Points ◽  
Assembly System ◽  
Control Group ◽  
Novel Device ◽  
Mandibular Distraction Osteogenesis ◽  
Distraction Device ◽  
Cad Cam ◽  
3D Printed ◽  
Group 1

Abstract Background A new distraction osteogenesis assembly system comprising a fully customized CAD/CAM-based fixation unit and ready-made distraction unit was developed. The aim of this study was to introduce our new distraction system and to evaluate its accuracy level in a sampled mandibular distraction osteogenesis. Methods Our system consists of a fully customized CAD/CAM-based fixation plate unit with two plates for each moving and anchoring part, and a ready-made distraction unit with attachment slots for fixation plates. The experimental distractions were performed on 3D-printed mandibles for one control and two experimental groups (N = 10 for each group). All groups had reference bars on the chin region and teeth to measure distraction accuracy. The control group had the classical ready-made distraction system, and experimental groups 1 and 2 were fitted with our new distraction assembly using a different distractor-positioning guide design. All distracted experimental mandibles were scanned by CT imaging, then superimposed on a 3D simulation to get their discrepancy levels. Results The measured 3D distances between the reference landmarks of the surgical simulations and the experimental surgeries for the three groups were significantly different (p < 0.0001) by statistical analysis. The errors were greater in the control group (with a total average of 19.18 ± 3.73 mm in 3D distance between the simulated and actual reference points) than those in the two experimental groups (with an average of 3.68 ± 1.41 mm for group 1 and 3.07 ± 1.39 mm for group 2). The customized distraction assembly with 3D-printed bone plate units in group 1 and 2, however, did not show any significant differences between simulated and actual distances (p > 0.999). Conclusion Our newly-developed distraction assembly system with CAD/CAM plate for the distraction osteogenesis of the mandible produced a greater level of accuracy than that of a conventional distraction device. The system appears to address existing shortcomings of conventional distraction devices, including inaccuracy in vector-controlled movement of the system. However, it also needs to be further developed to address the requirements and anatomical characteristics of specific regions.

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