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distraction device
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  牵引装置
     Methods With the use of an external adjustable, rigid distraction device, we treated 6 patients with severe maxillary hypoplasia. Ages ranged from 11 to 15 years.
     方法 采用颅骨外固定牵引装置 (KLS MARTIN公司提供 )对 6例 11~ 15岁唇腭裂术后继发上颌骨严重发育不足及发育性上颌骨严重后缩畸形的青少年实施牵引成骨术。
短句来源
     Methods A distraction device was applied and the alveolar ridge was distracted vertically at edentulous mandibular quadrant.
     方法 分别在 6只狗的下颌骨无牙区 ,应用牵引装置 ,垂直牵张牙槽嵴。
短句来源
     Methods The experiment was carried out in 6 dogs, with the left side of jaws of each one set as experiment or control side, and the other side as control or experiment side. On the control side, the first premorlar was moved by using traditional methods while the third premorlar as archor,on the experiment side by using self-made distraction device.
     方法  6只犬 ,每只犬下颌左右两侧分别为实验侧和对照侧 ,对照侧用传统方法以第三前磨牙为支抗牙移第一前磨牙向远中 ,实验侧用自制牙周膜牵引装置
短句来源
     Objective To use clinical application of the distraction device for a rapid canine retraction through distraction of the periodontal ligament.
     目的 应用牵引装置牵引牙周韧带加速尖牙的移动。
短句来源
  “distraction device”译为未确定词的双语例句
     1. A self-made periosteal distraction device was rigidly fixed to the lateral surface of the mandible in 16 mature male New Zealand white rabbits.
     实验一,选用16只成年雄性新西兰大白兔,将自制的骨膜牵张成骨装置牢固固定在兔的一侧下颌骨体部外侧面,术后原位固定7d,于术后第8d对术侧下颌骨骨膜牵张两次,每次1mm。
短句来源
     PURPOSE:This study was conducted to evaluate the acoustic characteristic changes of the vowel [i] and fricative [s] after maxillary distraction osteogenesis by using a rigid external distraction device (RED) in cleft lip and palate patients with maxillary dysplasia.
     目的:通过研究行颅外支架式上颌骨牵引成骨术(rigid external distraction,RED)的唇腭裂患者治疗前后元音[i]和擦音[s]的声学特性变化,分析上颌骨牵引成骨术对患者腭咽闭合功能和舌位的影响。
短句来源
     METHODS:The 8 patients underwent mandibular distraction osteogenesis, and altogether 16 distractors were placed through extraoral or intraoral incisions for bilateral distraction. The distraction device proceeded at the rate of 1 to 1.5 mm per day and consolidated for 4 to 12 weeks. The follow up lasted for 2 to 18 months.
     方法:8例患者均行牵引成骨技术牵引双侧下颌骨治疗,经口内或口外途径共安放16个牵引器,牵引速度1~1.5mm/d,固定4~12周,随访2~18个月。
短句来源
     An experimental model for animal malocclussion with mandible distraction device
     用骨牵引延长器建立错颌畸形实验动物模型
短句来源
     The experimental groups were fitted with a distraction device and a forward elastic force was exerted for 1 week/4 weeks.
     实验组安置自制口外牵引支架,自鼻腭孔引出牵引钩,橡皮圈连接牵引支架和牵引钩,分别持续弹性牵引1周和4周,牵引力约0.6kg。
短句来源
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  相似匹配句对
     Conclusion: The implant-distraction device is functional in distraction osteogenesis.
     结论:种植型弹性牵张器机械强度高,操作简单,可实现全埋置自动连续牵张成骨,符合牵张器的发展趋势。
短句来源
     Development of a distraction of osteogenesis device for mandibular elongation
     MS-1型内置式下颌骨骨牵引延长器及其动物实验
短句来源
     Infusion device
     输血输液装置
短句来源
     ANALOGUE DEVICE DESIGN
     模拟设备的设计
短句来源
     Distraction Osteogenesis of Jaws
     颌骨牵引成骨技术
短句来源
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  distraction device
In conclusion, the X-Stop interspinous distraction device showed an extremely high failure rate, defined as surgical re-intervention, after short term follow-up in patients with spinal stenosis caused by degenerative spondylolisthesis.
      
A cohort of 12 consecutive patients with symptomatic lumbar spinal stenosis caused by degenerative spondylolisthesis were treated with the X-Stop interspinous distraction device.
      
The X-Stop interspinous distraction device has shown to be an attractive alternative to conventional surgical procedures in the treatment of symptomatic degenerative lumbar spinal stenosis.
      
High failure rate of the interspinous distraction device (X-Stop) for the treatment of lumbar spinal stenosis caused by degenera
      
With the help of a special compression/distraction device, a lengthening osteotomy can be carried out more easily than by conventional means.
      
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The effects of gradual tibia lengthening at different speeds on the histomorphology of tibial nerve were studied in 30 rabbits by self-made external distraction device. It was showed that the leg was tracted at the speed of 1 mm/d, the tibial nerve was lengthened correspondingly. Gradual stress could stimulate the growth of nervous tissue and no nervous functional and constructural injuries were found When the leg was distracted at the speed of 2 mm/d, limb elongation within 40% was safe, otherwise, severe...

The effects of gradual tibia lengthening at different speeds on the histomorphology of tibial nerve were studied in 30 rabbits by self-made external distraction device. It was showed that the leg was tracted at the speed of 1 mm/d, the tibial nerve was lengthened correspondingly. Gradual stress could stimulate the growth of nervous tissue and no nervous functional and constructural injuries were found When the leg was distracted at the speed of 2 mm/d, limb elongation within 40% was safe, otherwise, severe nervous damage would occur.

采用自制的外固定延长器对30只家兔以不同速度缓慢延长后肢胫骨,观察胫神经形态与组织学改变,结果表明:以1mm/d速度延长肢体时,神经也随之延长,缓慢牵引力能刺激神经组织生长,未引起神经功能及结构损伤;以2mm/d速度延长时,肢体延长率在40%以内也是安全的;若超过这一限度,神经将发生明显功能与形态损伤。

Abstract Objective To evaluate two kinds of internal fixation in clinical results and biomechanic test. Methods Seventy seven consecutive patients with thoracolumbar spine and spinal cord injuries were treated by two kinds of internal fixators: Seventeen cases of group A were treated by Harrington distraction rod with Luque segmental wires and sixty cases of group B by Edwards device. Biomechanic experimental study was done with swine thoracic and lumbar spine to compare the axial correcting force on...

Abstract Objective To evaluate two kinds of internal fixation in clinical results and biomechanic test. Methods Seventy seven consecutive patients with thoracolumbar spine and spinal cord injuries were treated by two kinds of internal fixators: Seventeen cases of group A were treated by Harrington distraction rod with Luque segmental wires and sixty cases of group B by Edwards device. Biomechanic experimental study was done with swine thoracic and lumbar spine to compare the axial correcting force on anterior longitudinal ligaments between Edwards device and Harrington distraction device. Results The averages of the correction of segmental kyphosis were improved from 22.2 degree of preoperation to 11.8 of postoperation in group B and from 29.3 to 2.6 in group A. The reduction of anterioposterior displacement were improved from 32.3% to 9.7% in group A and from 30.0% to 0.8% in group B. The restoration of the compressed vertibral height were improved from 55.5% to 64.5% in group B and from 50.4% to 97.5% in group A. Neurological function improvement above one Frankel grade was 82% in group B and 90% in group A. The axial correcting forces on anterior longitudinal ligaments applied by Edwards rod sleeve device were 89.0N, which were 82.7% higher than 48.7%N by Harrington distraction rod in biomechanic experiment. Conclusion The results indicated that the Edwards device was superior to Harrington distraction rods both in clinical practice and biomechanic test.

EVALUATIONOFTWOKINDSOFSPINALINTERNALFIXATIONINCLINICALRESULTSANDBIOMECHANICSSHENGen-biao(沈根标),LUOZhuo-jing(罗卓荆),CUIHai-xiang(...

Objective To demonstrate a practical method for advancement of the midface using Le FortⅠ osteotomy and gradual distraction technique. Methods With the use of an external adjustable, rigid distraction device, we treated 6 patients with severe maxillary hypoplasia. Ages ranged from 11 to 15 years. They all underwent modified Le FortⅠosteotomies assisted by gradual distraction. Four days postoperatively, distraction began at the rate of 1 mm/day for about 2 weeks. 4 weeks with the fixed distraction...

Objective To demonstrate a practical method for advancement of the midface using Le FortⅠ osteotomy and gradual distraction technique. Methods With the use of an external adjustable, rigid distraction device, we treated 6 patients with severe maxillary hypoplasia. Ages ranged from 11 to 15 years. They all underwent modified Le FortⅠosteotomies assisted by gradual distraction. Four days postoperatively, distraction began at the rate of 1 mm/day for about 2 weeks. 4 weeks with the fixed distraction appliance and 6 weeks with a removable night time face mask retention, we then analyzed all those preoperative and postoperative protocols. Results Predictable results were obtained. Midface advancement ranged from 8 to 13 mm. A satisfactory classⅠor Ⅱmolar relationship is achieved. The aesthetic results are excellent. Up to now, no relapses have been observed. Conclusions This method of modified Le FortⅠmidface advancement has been shown to be clinically practical and effective.

目的 通过对青少年上颌骨严重发育不足 ,特别是继发于唇腭裂术后严重畸形者行改良LeFortI型截骨 ,并通过颅骨外固定上颌骨牵引成骨前移术 ,对牵引成骨后硬组织改建及腭咽闭合功能进行初步探讨。方法 采用颅骨外固定牵引装置 (KLS MARTIN公司提供 )对 6例 11~ 15岁唇腭裂术后继发上颌骨严重发育不足及发育性上颌骨严重后缩畸形的青少年实施牵引成骨术。运用正颌外科电脑分析软件对术前、术后头颅定位X线侧位片行颅颌面硬组织的测量分析。结果  6例青少年上颌骨牵引前移 8~ 13mm ,平均为 10 .2mm。SNA角度分别增大 7~ 10 .5°,平均为 9°。头颅侧位片可显示翼上颌裂区新骨形成。面部外形得到明显改善 ,咬合关系调整至远中关系。结论 应用牵引成骨技术早期解除上颌骨发育不足畸形 ,避免或减轻口颌系统继发畸形和功能障碍 ,同时避免骨移植 ,稳定治疗效果。牵引成骨技术不失为发育性上颌骨严重后缩畸形及唇腭裂术后继发上颌骨严重发育不足有效的治疗方法

 
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