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44 results on '"Zhao, Man"'

4. Postoperative fibrinogen‐to‐albumin ratio acting as an indicator of futile recanalization in patients with successful thrombectomy

Author

Tang, Tao, primary, Li, Di, additional, Fan, Tie‐Ping, additional, Guo, Lin‐Jia, additional, Lan, Xiao‐Yan, additional, Bi, Cong‐Jie, additional, Boltze, Johannes, additional, Thomas, Aline M., additional, Zhao, Xu‐Sheng, additional, Mo, Ming, additional, Zhao, Man‐Hong, additional, Ji, Xun‐Ming, additional, and Li, Shen, additional

Published
2023
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5. Computational Biomechanical Analysis of Postoperative Calcaneal Fractures with Different Placement of the Sustentaculum Screw

Author

Min‐fei Qiang, Ritesh Kumar Singh, Yan‐xi Chen, Kun Zhang, Xiao‐yang Jia, Song Chen, Shu‐guang Wang, Xiong Wang, and Zhao‐man Shi

Subjects
Calcaneus, Finite element analysis, Fracture fixation, Internal, Intra‐articular fractures, Orthopedic surgery, RD701-811
Abstract

Objective To evaluate the computational biomechanical analysis of intra‐articular calcaneal fractures with different fixation status of the sustentaculum plate screw, when the finite element modeling of calcaneal fractures were fixed by the lateral locking plate. Methods The normal right foot of a male (age: 36 years; height: 174 cm; body weight: 65 kg) was scanned by the CT scanner. As the computational biomechanical study, the three‐dimensional finite element model of the simplified Sanders type‐II calcaneal fracture was built. Fixation with the lateral calcaneal locking plate and screws was simulated using a finite element software package according to clinical operation. According to the different placement of the sustentaculum plate screw, the models were categorized as the accurate fixation group, marginal fixation group, and non‐fixation group. The loading of 650 N with the vertical axial compression was applied to simulate the standing phase with single foot. The Von Mises stress distribution, maximal displacement, and contact area of the subtalar joint were analyzed among three groups. Results The pressure distribution of the subtalar joint facet was inhomogeneous. The stress concentration of the calcaneus was located at the medial zone of the posterior subtalar joint facet. The peak Von Mises stress distribution in three groups was similar at the subtalar joint facet of 4.9 MPa, 5.1 MPa, and 5.4 MPa. In the accurate fixation group, the contact area on the posterior articular facet was 277.1 mm2; the maximal displacement was 0.18 mm. The contact area of the marginal fixation group was 265.3 mm2 on the posterior facet, where the maximal displacement was 0.23 mm. In the non‐fixation group, the contact area was 253.8 mm2; the maximal displacement was 0.25 mm. There was a slight change in the contact area of the subtalar joint and no prominent displacement of the calcaneus could be detected among the three groups. Conclusions The biomechanical results, including the peak stress distribution, contact area, and maximal displacement of subtalar joint, were similar whether the screw is placed exactly within the sustentaculum tali or not, when the calcaneal fractures were fixed by the lateral locking plate. The sustentaculum plate screw had less effect on the biomechanical performance of the calcaneus.

Published
2020
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12. Computational Biomechanical Analysis of Postoperative Calcaneal Fractures with Different Placement of the Sustentaculum Screw

Author

Zhao‐man Shi, Minfei Qiang, Xiaoyang Jia, Yanxi Chen, Xiong Wang, Shuguang Wang, Song Chen, Ritesh Kumar Singh, and Kun Zhang

Subjects
Adult, Male, musculoskeletal diseases, Scientific Articles, Bone Screws, 03 medical and health sciences, Fixation (surgical), Fractures, Bone, 0302 clinical medicine, Calcaneal fracture, lcsh:Orthopedic surgery, Subtalar joint, medicine, von Mises yield criterion, Humans, Orthopedics and Sports Medicine, Scientific Article, Postoperative Period, Stress concentration, Orthodontics, 030222 orthopedics, Finite element analysis, Sustentaculum tali, medicine.disease, musculoskeletal system, Biomechanical Phenomena, Calcaneus, lcsh:RD701-811, medicine.anatomical_structure, Fracture fixation, Internal, Intra‐articular fractures, Surgery, Contact area, Bone Plates, 030217 neurology & neurosurgery, Geology
Abstract

Objective To evaluate the computational biomechanical analysis of intra-articular calcaneal fractures with different fixation status of the sustentaculum plate screw, when the finite element modeling of calcaneal fractures were fixed by the lateral locking plate. Methods The normal right foot of a male (age: 36 years; height: 174 cm; body weight: 65 kg) was scanned by the CT scanner. As the computational biomechanical study, the three-dimensional finite element model of the simplified Sanders type-II calcaneal fracture was built. Fixation with the lateral calcaneal locking plate and screws was simulated using a finite element software package according to clinical operation. According to the different placement of the sustentaculum plate screw, the models were categorized as the accurate fixation group, marginal fixation group, and non-fixation group. The loading of 650 N with the vertical axial compression was applied to simulate the standing phase with single foot. The Von Mises stress distribution, maximal displacement, and contact area of the subtalar joint were analyzed among three groups. Results The pressure distribution of the subtalar joint facet was inhomogeneous. The stress concentration of the calcaneus was located at the medial zone of the posterior subtalar joint facet. The peak Von Mises stress distribution in three groups was similar at the subtalar joint facet of 4.9 MPa, 5.1 MPa, and 5.4 MPa. In the accurate fixation group, the contact area on the posterior articular facet was 277.1 mm2 ; the maximal displacement was 0.18 mm. The contact area of the marginal fixation group was 265.3 mm2 on the posterior facet, where the maximal displacement was 0.23 mm. In the non-fixation group, the contact area was 253.8 mm2 ; the maximal displacement was 0.25 mm. There was a slight change in the contact area of the subtalar joint and no prominent displacement of the calcaneus could be detected among the three groups. Conclusions The biomechanical results, including the peak stress distribution, contact area, and maximal displacement of subtalar joint, were similar whether the screw is placed exactly within the sustentaculum tali or not, when the calcaneal fractures were fixed by the lateral locking plate. The sustentaculum plate screw had less effect on the biomechanical performance of the calcaneus.

Published
2020

24. Differences in oxidative susceptibilities between glycerophosphocholine and glycerophosphoethanolamine in dried scallop (Argopecten irradians) adductor muscle during storage: an oxidation kinetic assessment

Author

Xie, Hong‐Kai, primary, Zhao, Guan‐Hua, additional, Wu, Zi‐Xuan, additional, Li, De‐Yang, additional, Zhao, Man‐Tong, additional, Li, Ao, additional, Liu, Hui‐Lin, additional, Zhou, Da‐Yong, additional, and Zhu, Bei‐Wei, additional

Published
2020
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37. Gold Nanowire Chiral Ultrathin Films with Ultrastrong and Broadband Optical Activity

Author

Lv, Jiawei, primary, Hou, Ke, additional, Ding, Defang, additional, Wang, Dawei, additional, Han, Bing, additional, Gao, Xiaoqing, additional, Zhao, Man, additional, Shi, Lin, additional, Guo, Jun, additional, Zheng, Yonglong, additional, Zhang, Xi, additional, Lu, Chenguang, additional, Huang, Ling, additional, Huang, Wei, additional, and Tang, Zhiyong, additional

Published
2017
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