检索结果-南通市图书馆

DISTRACTION OF OSTEOGENESIS AND lengthening OF CRANIOFACIAL bone-PRELIMINARY REPORT OF AN EXPERIMENTAL RESEARCH

在线全文

学校读者我要写书评

暂无评论

Academic Journal of Xi'an Jiaotong University 2000年第1期12卷 61-66页

作者：常晓峰顾晓明邢晓健李天亮李旭奎 Dept. of Oral/Maxillofacial Surg. College of Stomatology Xi'an Medical University Xi'an 710004 China

Objective: The method of bone lengthening by distraction of callus was used on dog mandible as a model to study the capability and changes of membranous bone during distraction osteogenesis. Methods: 15 dogs aged 5~7 months were chosen as the subjects. The operation included a unilateral or bilateral periosteal preserving corticotomy of mandibular bone, and an intraoral mini lengthening device were fixed to the buccal side of the mandible. After 7d, the mandible was lengthened 1mm/d for 20d and then held in internal fixation for 7~140d (1~20 weeks). Results: The dogs were killed at 3 times. Anthropometric measurements, X-ray examination and histological observation were conducted and conformed that the distracted bone had formed in the expanded zone successfully. Conclusion: The results suggested that we could use the DO technique in the area of craniofacial clinic. The strong ability of generating new bone in membranous skeleton by DO technique should be further demonstrated in the future.

关键词： craniofacial bone bone lengthening animal experiment

International recognition of the Ilizarov bone reconstruction techniques: Current practice and research (dedicated to 100th birthday of G. A. Ilizarov)

在线全文

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2021年第8期12卷 515-533页

作者： Tatiana A Malkova Dmitry Y Borzunov Department of Medical Information and Analysis Ilizarov National Medical Research Center for Traumatology and OrthopedicsKurgan 640014Russia Department of Traumatology and Orthopedics Ural State Medical UniversityEkaterinburg 620109Russia

The Ilizarov method is one of the current methods used in bone *** originated in the middle of the past century and comprises a number of bone reconstruction techniques executed with a ring external fixator developed by Ilizarov *** main merits are viable new bone formation through distraction osteogenesis,high union rates and functional use of the limb throughout the course of *** study of the phenomenon of distraction osteogenesis induced by tension stress with the Ilizarov apparatus was the impetus for advancement in bone reconstruction *** then,the original method has been used along with a number of its modifications developed due to emergence of new fixation devices and techniques of their application such as hexapod external fixators and motorized intramedullary lengthening *** gave rise to a relatively new orthopedic subspecialty termed“limb lengthening and reconstruction surgery”.Based on a comprehensive literature search,we summarized the recent clinical practice and research in bone reconstruction by the Ilizarov method with a special focus on its modification and recognition by the world orthopedic *** international influence of the Ilizarov method was reviewed in regard to the origin country of the authors and journal’s *** Ilizarov method and other techniques based on distraction osteogenesis have been used in many countries and on all populated *** proves its international significance and confirms the greatest contribution of Ilizarov GA to bone reconstruction surgery.

关键词： Ilizarov method Ilizarov apparatus Distraction osteogenesis bone lengthening bone defect bone transport Arthrodesis

Treatment of tibial defect and bone nonunion with limb shortening with external fixator and reconstituted bone xenograft

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Traumatology 2003年第2期6卷 91-98页

作者：王志刚刘建胡蕴玉孟国林金格勒袁志王海强戴先文 Orthopaedic Department of Xijing Hospital

Objective: To explore the effect of external fixator and reconstituted bone xenograft (RBX) in the treatment of tibial bone defect, tibial bone nonunion and congenital pseudarthrosis of the tibia with limb shortening. Methods: Twenty patients ( 13 males and 7 females) with tibial bone defect, tibial bone nonunion or congenital pseudarthrosis of the tibia with limb shortening were treated with external fixation. Two kinds of external fixators were used: a half ring sulcated external fixator used in 13 patients and a combined external fixator in 7 patients. Foot-drop was corrected at the same time with external fixation in 4 patients. The shortened length of the tibia was in the range of 2-9 cm, with an average of 4.8 cm. For bone grafting, RBX was used in 12 patients, autogenous ilium was used in 3 patients and autogenous fibula was implanted as a bone plug into the medullary canal in 1 case, and no bone graft was used in 4 patients. Results: All the 20 patients were followed-up for 8 months to 7 years, averaging 51 months. Satisfactory function of the affected extremities was obtained. All the shortened extremities were lengthened to the expected length. For all the lengthening area and the fracture sites, bone union was obtained at the last. The average healing time of 12 patients treated with RBX was 4.8 months. Conclusions: Both the half ring sulcated external fixator and the combined external fixator have the advantages of small trauma, simple operation, elastic fixation without stress shielding and non-limitation from local soft tissue conditions, and there is satisfactory functional recovery of affected extremities in the treatment of tibial bone defects, tibial bone nonunion and congenital pseudarthrosis of the tibia combined with limb shortening. RBX has good biocompatibility and does not cause immunological rejections. It can also be safely used in treatment of bone nonunion and has reliable effect to promote bone healing.

关键词： External fixators bone transplantation bone lengthening bone defects

Component changes of calcium and phosphorus in osteogenesis by lengthening procedures in adult canines

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Traumatology 2003年第1期6卷 32-36页

作者：王兵刘贻运郑介柏陈国勋 DepartmentofOrthopedicsof12thHospitalofGuangzhouCity

Objective: To explore chemical component changes of dog bone at different lengthening time and in different bone regions of interest, and to evaluate the mineralization during Ilizarov lengthening process. Methods: The ash weight, the concentrations of calcium, phosphorus and the calcium/phosphorus ratio were measured at different intervals (2, 4, 6, 8, 12 weeks) since lengthening and the lengthened part was compared with a control area at each interval. Results: The ash weight, the concentrations of calcium and phosphorus in the lengthened area differed at all development time. The calcium/phosphorus (Ca/P) ratio in the lengthened region remained significantly lower than that in the control region up to 12 weeks after the lengthening. Conclusions: These results suggest that also other inorganic ions play an important role in the mineralization process and that they become relatively more important since 8 weeks after the lengthening.

关键词： bone lengthening Calcium Phosphorus Calcium/phosphorus ratio