Reconstruction of mandibular symphyseal defects by an internal trifocal distractor: an experiment in dogs

Zhang, R.Z.; Zhang, L.; Deng, Yanming; Zhang, Q.L.; Zhen, E.M.; Yu, Bao‐Fu

doi:10.1016/j.bjoms.2008.08.011

Cited by 7 publications

(10 citation statements)

References 6 publications

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“…Vectors can be unidirectional 1,9,15,[17][18][19][20][21]23,24,27,42,45,76 if the MBT device provides linear distraction in the same direction as the MBT device orientation. Alternately, the vector can be bidirectional 2,8,14,16,17,26,[28][29][30][31]77,78 if the MBT device provides two distraction direction components. Most of these devices are called curved or curvilinear MBT devices.…”

Section: The Distraction Vectormentioning

confidence: 99%

“…Several MBT devices based on power screw activation are unable to reproduce the curvature of the mandible, because they produce unidirectional distraction by moving the transport unit parallel to the screw (Table 1). 1,9,15,[18][19][20][21]23,42,45 It is possible to improve their design to generate bidirectional MBT by adding complementary moveable mechanisms 31 performing complementary steps that include the rotation of the distraction device 57 or bending either the track 8,30 or the screw.…”

Section: 49mentioning

confidence: 99%

“…5): power screw, 1,8,9,15,[17][18][19][20][21][22][23]26,[28][29][30][31][32]42,45,54 spring, 24,25,55 traction wire, 14,16 hydraulic, 27 and rack and pinion. 2,56 The power screw activation system, also called screw lead activation system, translates torque into linear force to be used to distract the mandibular bone by matching an external helical threaded screw with either a negative or female threaded nut with the same thread form (Fig.…”

Section: 49mentioning

confidence: 99%

“…The relationship with the cutaneous tissues MBT devices can be internal, 9,[14][15][16][17][18][19][20][21]24,25,27,31,42 if the bulk of the device is buried beneath the cutaneous tissues, or external, 1,8,22,23,26,[28][29][30]32,[43][44][45] if the device uses transcutaneous pins to attach to the bone (Fig. 4).…”

Section: The Anchoring Tissuementioning

confidence: 99%

“…2B1), [14][15][16][17][18][19][20][21][22][23][24][25][26][27] two (trifocal distraction) (Fig. 2B2), 9,[28][29][30][31][32] or three (quadrifocal distraction) (Fig. 2B3) 32 viable bone segments, called ''transport discs,'' across a defect.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Biomechanical Configurations of Mandibular Transport Distraction Osteogenesis Devices

Zapata

Elsalanty

Dechow³

et al. 2010

Tissue Engineering Part B: Reviews

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Section: The Distraction Vectormentioning

confidence: 99%

Section: 49mentioning

confidence: 99%

Section: 49mentioning

confidence: 99%

Section: The Anchoring Tissuementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Biomechanical Configurations of Mandibular Transport Distraction Osteogenesis Devices

Zapata

Elsalanty

Dechow³

et al. 2010

Tissue Engineering Part B: Reviews

View full text Add to dashboard Cite

Architecture and Microstructure of Cortical Bone in Reconstructed Canine Mandibles After Bone Transport Distraction Osteogenesis

et al. 2011

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Purpose Reconstruction of the canine mandible using bone transport distraction osteogenesis has been shown to be a suitable method for correcting segmental bone defects produced by cancer, gunshots, and trauma. Although the mechanical quality of the new regenerate cortical bone seems to be related to the mineralization process, several questions regarding the micro-structural patterns of the new bony tissue remain unanswered. The purpose of this study was to quantify any microstructural differences that may exist between the regenerate and control cortical bone. Methods Five adult American foxhound dogs underwent unilateral bone transport distraction of the mandible to repair 30–35 mm bone defects. Animals were sacrificed 12 weeks after the beginning of the consolidation period. Fourteen cylindrical cortical samples were extracted from the superior, medial, and inferior aspects of the lingual and buccal plates of the reconstructed aspect of the mandible and 21 specimens were collected similarly from the contralateral aspect of the mandible. The specimens were evaluated using histomorphometric and micro-computed tomography techniques to compare their microstructure. Results Except for differences in Haversian canal area, histomorphometric analyses suggested no statistical differences in microstructure between regenerate and control cortical bone. Morphological evaluation suggested a consistent level of anisotropy possibly related to the distraction vector. Conclusions After 12 weeks consolidation, bone created during bone transport distraction osteogenesis is comparable to native bone in microstructure, architecture, and mechanical properties. It is proposed that after enough time, the properties of the regenerate bone will be identical to that of native bone.

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A novel method for transferring press during curvilinear distraction

Shang

Xue

2010

British Journal of Oral and Maxillofacial Surgery

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Reconstruction of mandibular symphyseal defects by an internal trifocal distractor: an experiment in dogs

Cited by 7 publications

References 6 publications

Biomechanical Configurations of Mandibular Transport Distraction Osteogenesis Devices

Biomechanical Configurations of Mandibular Transport Distraction Osteogenesis Devices

Architecture and Microstructure of Cortical Bone in Reconstructed Canine Mandibles After Bone Transport Distraction Osteogenesis

A novel method for transferring press during curvilinear distraction

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