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恐龙骨架化石的陈列展示
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作者 张伟 李锐 +2 位作者 陈立 皮洪军 郝宝鞘 《文物鉴定与鉴赏》 2023年第1期56-59,共4页
人类诞生于数百万年前,形成了自己的文明,成为地球的霸主。而在人类出现之前,地球真正的霸主则是恐龙,那是一个辉煌的恐龙时代。恐龙是地球曾经的统治者,人们从地壳中发现它们并挖掘出来用于研究和展示。形态各异的恐龙骨架是博物馆科... 人类诞生于数百万年前,形成了自己的文明,成为地球的霸主。而在人类出现之前,地球真正的霸主则是恐龙,那是一个辉煌的恐龙时代。恐龙是地球曾经的统治者,人们从地壳中发现它们并挖掘出来用于研究和展示。形态各异的恐龙骨架是博物馆科普教育的强力展品,因此恐龙化石是各自然类博物馆竞相收藏的展品。博物馆完整装架好的恐龙骨架更能吸引更多的参观者。然而,装架恐龙化石并没有想象中那么简单,恐龙化石装架是一项系统工程,需要利用古脊椎动物学、比较解剖学、古生态学等专业知识,工作者还要有高超的技术才能让不完整的动物化石更加生动形象、栩栩如生地展现给广大观众。 展开更多
关键词 恐龙骨架 内固法 装架流程
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Multilevel cervical spondylotic myelopathy treated by anterior cervical decompression in subsection and autograft fusion 被引量:4
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作者 赵建华 刘鹏 李起鸿 《Journal of Medical Colleges of PLA(China)》 CAS 2007年第4期209-215,共7页
Objective:To investigate a novel surgical method for multilevel cervical spondylotic myelopathy (CSM). Methods: Totally 21 patients with multilevel CSM undergoing a novel surgical procedure from April 2001 to Janu... Objective:To investigate a novel surgical method for multilevel cervical spondylotic myelopathy (CSM). Methods: Totally 21 patients with multilevel CSM undergoing a novel surgical procedure from April 2001 to January 2004 were analyzed retrospectively. All patients experienced anterior cervical decompression surgery in subsection, autograft fusion and internal fixation. Preoperative, immediate postoperative and follow-up image data, X-rays and semi-quantitative Japanese orthopaedics association (JOA) scores were used to evaluate the restoration of lordosis (Cobb's angle), intervertebral heights, the stability of the cervical spine and the improvement of neurological impairment. Results: Preoperative symptoms were markedly alleviated or disappeared in most of the patients. According to the JOA scores, the ratio of improvement in neurological function was 72. 2%, including excellent in 9 cases (42.9%), good in 7 cases (33.3%), fair in 3 cases (14.3%) and poor in 2 cases (9.5%). Immediate postoperative X-rays showed obvious improvements in lordosis and in the intervertebral height of the cervical spine (P〈0. 01). There is no evidence of instrument failure during the mean follow-up period of 14. 2 months (9-24 months, P〉0. 01). Conclusion:Anterior cervical decompression in subsection, autograft fusion and internal fixation is a rational effective method for the surgical treatment of multilevel CSM. 展开更多
关键词 cervical spondylotic myelopathy MULTILEVEL anterior decompression FUSION internal fixation
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A modified preauricular-temporal approach for fixing comminuted and redisplaced zygomatic arch fractures with the resorbable bone plate 被引量:3
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作者 CHEN Peng LIU Bing +1 位作者 ZHANG Hai-zhong BUJing-qiu 《Chinese Journal of Traumatology》 CAS 2012年第5期288-290,共3页
Objective: To evaluate the effectiveness of the rigid internal fixation for comminuted and redisplaced zygomatic arch fractures by modified preauriculartemporal approach with the resorbable bone fixation. Methods: ... Objective: To evaluate the effectiveness of the rigid internal fixation for comminuted and redisplaced zygomatic arch fractures by modified preauriculartemporal approach with the resorbable bone fixation. Methods: Totally twenty patients aged from 14 to 68 years and admitted to our hospital between September 2006 and June 2011 were reviewed, of whom seventeen had a unilateral comminuted zygomatic arch fracture and three re displaced arch fracture after failed closed reduction. The fracture segments were aligned to restore the preinjury form of the arch by rigid fixation with resorbable plates and screws through a modified preauriculartemporal incision. Results: The fractures were well reduced, preauricu lartemporal scar and lateral facial contour were aestheti cally satisfying, and no case had limited mouth opening as well as facial palsy. The resorbable plates were not palpated one year after the operation. Conclusion: The rigid internal fixation through the preauriculartemporal approach with the resorbable bone is an effective method for the comminuted and redisplaced zyomatic arch fractures. 展开更多
关键词 ZYGOMA Fracture ftxation internal Facial nerve
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Comparative study on treatment of midshaft tibial fracture with expandable and interlocking intramedullary nails 被引量:5
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作者 毕擎 朱丹杰 +3 位作者 邱斌松 洪剑飞 章水均 夏冰 《Chinese Journal of Traumatology》 CAS 2007年第4期228-232,共5页
Objective : To evaluate the clinical results of treatment of midshaft tibial fracture with expandable intramedullary nails compared with interlocking intramednilary nails. Methods: From June 2003 to August 2005, 46... Objective : To evaluate the clinical results of treatment of midshaft tibial fracture with expandable intramedullary nails compared with interlocking intramednilary nails. Methods: From June 2003 to August 2005, 46 patients (27 males and 19 females, aged 20-74 years, mean =38.4 years ) with midshaft tibial fracture were treated surgically in our department. The causes of fractures were traffic injury in 21 patients, fall injury in 6, tumbling injury in 11 and crushing injury in 8. According to AO/ ASIF classification, Type A fracture was found in 16 patients, Type B in 11, Type C1 in 5, and Type C2 in 2. Open fractures were found in 12 patients, according to Gustilo classification, Type Ⅰ in 9 patients and Type Ⅱin 3 patients. Based on the patients'consent, 24 patients were treated with expandable intramedullary nails (Group A ) and 22 with interlocking intramedullary nails (Group B ). The operation time, blood loss during operation, X-ray fluoroscopic times, hospitalization time, weight bearing time after operation, healing time of fracture and complications of all the patients were recorded. The clinical effects of all the cases were evaluated according to the criteria of Johner-Wruhs. Results: All the patients were followed up for 12,34 months ( mean = 16.2 months). The time of operation, the blood loss, X-ray fluoroscopic times, hospitalization time and healing time of fracture of Group A significantly decreased (P 〈 0.05 ) compared with those of Group B, but the time for weight bearing after operation, the Johner- Wruhs degree of clinical effects and complications had no significant difference between Group A and Group B (P〉0.05). Conclusions: Expandable intramedullary nail can shorten operation time, decrease blood loss and reduce invasion, which is a safe and effective treatment method for tibial midshaft fracture. 展开更多
关键词 Fracture fixation intramedullary Tibial fractures Clinical medicine
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