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Start Over Author "Liu, Zhongyang" Publisher springer science and business media llc
29 results on '"Liu, Zhongyang"'

2. Comparative study of anatomical locking plate and reconstruction plate in treating acetabular fractures

Author

Liu Zhongyang, Hao Zhang, Zhirui Li, Jiantao Li, Shaobo Nie, Peifu Tang, Li Zhijiang, Jianheng Liu, Gaoxiang Xu, Li Ming, and Licheng Zhang

Subjects
medicine.medical_specialty, medicine.medical_treatment, Perforation (oil well), Fracture Fixation, Internal, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Internal fixation, Orthopedics and Sports Medicine, Reduction (orthopedic surgery), Retrospective Studies, Fixation (histology), 030203 arthritis & rheumatology, 030222 orthopedics, Hip Fractures, business.industry, Acetabulum, Retrospective cohort study, Treatment Outcome, Orthopedic surgery, Surgery, Complication, Nuclear medicine, business, Bone Plates
Abstract

This study aims to compare the effectiveness of anatomic locking plate and reconstruction plate used in treating acetabular fractures. From January 2009 to January 2016, patients with acetabular fractures were included in this retrospective study. We grouped the patients into two groups based on the internal fixation: reconstruction plate group (RPG) and anatomic locking plate group (ALPG). The operation time, blood loss, intra-operative screw penetration, and plate breakage were compared between the two groups. The intra-operative fluoroscopic images were used to evaluate the fixation location. The quality of reduction and radiological grading were assessed according to the criteria developed by Matta. The clinical assessment was based on the Merle d’Aubigne-Postel score. Eighty-three patients were included in this study and were followed up for an average of 35 months (range, 25 to 42 months). Thirty-five patients were treated with the anatomical locking plate, and 48 patients were treated with the reconstruction plate. The mean surgical time was significantly shorter (P < 0.0001) in ALPG patients than in RPG patients, and the intra-operative blood loss was significantly lower (P = 0.008). The rates of intra-operative screw penetration or plate breakage in the ALPG (0/35) are significantly lower than that in the RPG (7/48) (P = 0.018). Post-operative Matta score (P = 0.905), Merle d’Aubigne-Postel score (P = 0.957), and overall complication rates (P = 0.391) were not significantly different among the groups. Patients treated by anatomical locking plate had shorter operation time, less bleeding, and lower rate screw perforation compared to patients treated by reconstruction plate. Anatomical locking plate is a better choice for acetabulum fractures, especially complicated fractures.

Published
2021
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8. Weakened IL-15 Production and Impaired mTOR Activation Alter Dendritic Epidermal T Cell Homeostasis in Diabetic Mice

Author

Liu, Zhongyang, primary, Liang, Guangping, additional, Gui, Li, additional, Li, Yashu, additional, Liu, Meixi, additional, bai, Yang, additional, Zhang, Xiaorong, additional, Hu, Xiaohong, additional, Chen, Jian, additional, Huang, Chibing, additional, Liu, Xusheng, additional, Luo, Gaoxing, additional, Wu, Jun, additional, and He, Weifeng, additional

Published
2017
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9. Preparation of long-branched polyethylene byin situ polymerization using late transition metal and metallocene catalysts

Author

Xu Demin, Hu Youliang, Wang Jun, Ma Zhi, Liu Zhongyang, Guo Cunyue, and He Dawei

Subjects
chemistry.chemical_compound, Multidisciplinary, Materials science, Polymerization, chemistry, Polymer chemistry, Copolymer, Coordination polymerization, Post-metallocene catalyst, Polyethylene, In situ polymerization, Metallocene, Catalysis
Abstract

Anin situ polymerization method was investigated to prepare long-branched polyethylene (LBPE) with ethylene alone and a single cocatalyst, methylalumoxane (MAO), by using a dual functional catalytic system containing late transition metal oligomerization catalyst and metallocene copolymerization catalyst. The obtained longbranched polyethylene has the characteristics of low melting point, high activity and well-dispersed sequence distribution.

Published
2001
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18. Lldpe prepared byin situ polymerization using a dualfunctional catalytic system of Ti(On-Bu)4 /ALEt3-Et(Ind)2-ZrCl2/MAO

Author

Guo Cunyue, Liu Zhongyang, Wang Jun, HU Youliang, He Dawei, and XU Demin

Subjects
chemistry.chemical_classification, Multidisciplinary, Materials science, Polymer, Polyethylene, Catalysis, Linear low-density polyethylene, chemistry.chemical_compound, Crystallinity, chemistry, Polymerization, Polymer chemistry, Molar mass distribution, Metallocene
Abstract

Linear low-density polyethylene (LLDPE) was prepared byin situ polymerization using a dual-functional catalytic system containing Et(Ind)2ZrCl2/MAO and Ti(OnBu)4/AlEt3 used as co-polymerization catalyst and dimerization catalyst, respectively. The catalytic system showed high activity and the polymer with low melting point, narrow molecular weight distribution (MWD) and low crystallinity was produced.

Published
2001
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21. [Untitled]

Author

Wang Yue, Liu Zhongyang, Wang Zhongguang, and Liu Zheng

Subjects
Cyclic deformation, Materials science, High pressure, Metallurgy, General Materials Science, Pressure die casting
Abstract

acad sinica, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china. shenyang polytech univ, dept mat sci & engn, shenyang 110023, peoples r china.;liu, z (reprint author), acad sinica, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china

Published
1999
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