Results 1 to 10 of about 420,611 (253)

In Vivo Assessment of Localised Corneal Biomechanical Deterioration With Keratoconus Progression [PDF]

Frontiers in Bioengineering and Biotechnology, 2022
Purpose: To evaluate the regional corneal biomechanical deterioration with keratoconus (KC) progression as measured by the Stress-Strain Index (SSI) maps.Methods: The preoperative examinations of 29 progressive KC cases that were submitted to corneal ...
Haixia Zhang, Prema Padmanabhan, Ahmed Elsheikh   +2 more
exaly   +8 more sources

Posterior Ligamentum Complex Preservation Alleviate ASD-Related Biomechanical Deterioration in Lumbar Interbody Fusion Models: A Finite Element Analysis [PDF]

JOR Spine
Background There are differences in the extent of excision of articular processes, spinal processes and posterior ligamentum complexes (PLC) for posterior approach lumbar interbody fusion. Given that the biomechanical significance of these structures has
Chen Zan
exaly   +5 more sources

The Role of Structural Deterioration and Biomechanical Changes of the Necrotic Lesion in Collapse Mechanism of Osteonecrosis of the Femoral Head

Orthopaedic Surgery, 2022
Osteonecrosis of the femoral head (ONFH) is a crippling disease which is due to a lack of effective therapeutic measures. Its natural progression is rapid, the internal bone structure of the femoral head changes dramatically, and the subsequent fractures
Hua Tian, Cheng Wang, Jiang Peng
exaly   +4 more sources

Temporal progression of bone loss, trabecular microarchitectural deterioration, and mechanical impairment in a rat model of collagen-induced arthritis [PDF]

Frontiers in Medicine
AimThis study aimed to characterize the temporal progression of bone loss, trabecular microarchitectural deterioration, and mechanical impairment in a rat model of collagen-induced arthritis (CIA).MethodsCIA was induced in Wistar rats via subcutaneous ...
Xuan Cheng, Xuan Cheng, Yun Ling, Jun Xie, Lianbo Xiao, Xiong Shi, Xiong Shi, Chenxin Gao   +7 more
doaj   +2 more sources

A study on the changes in the microstructure of trabecular bone and the biomechanical properties in patients with osteoporotic fractures and the correlation between them [PDF]

Frontiers in Medicine
ObjectiveTo explore bone-quality characteristics in patients with osteoporotic femoral neck fractures by investigating trabecular-bone microstructural and biomechanical alterations of femoral-head specimens and their correlations.MethodsFemoral-head ...
Hao Liu, Hao Liu, Xu Zhang, Xu Zhang, Wenjie Xu, Wenjie Xu, Pei Yang, Zhizheng Xiong, Zhizheng Xiong   +8 more
doaj   +2 more sources

Incomplete Insertion of Pedicle Screws Triggers a Higher Biomechanical Risk of Screw Loosening: Mechanical Tests and Corresponding Numerical Simulations

Frontiers in Bioengineering and Biotechnology
Screw loosening is a widely reported issue after spinal screw fixation and triggers several complications. Biomechanical deterioration initially causes screw loosening.
Zhi-Peng Xi, Jing-Chi Li
exaly   +3 more sources

Biomechanical analysis of T10-T11 vertebrae under the combined effects of osteoporosis and L4 spondylolisthesis: a finite element analysis based on computed tomography [PDF]

Frontiers in Bioengineering and Biotechnology
AimsOsteoporotic vertebral compression fractures are common; however, the biomechanical link between L4 spondylolisthesis and non-adjacent thoracic fractures remains unclear.
Zhizhou Yang, Xiaowei Lian, Yunsheng Wang, Xiao Xiong, Zimo Wang, Linfeng Wang, Xiaobin Wang, Feng Wang   +7 more
doaj   +2 more sources

An explainable ensemble machine learning framework for predicting cartilage biomechanical degradation from transcriptomic profiles: toward smart orthopedic device design [PDF]

Frontiers in Bioengineering and Biotechnology
IntroductionOsteoarthritis (OA) is a common joint disease characterized by progressive biomechanical deterioration of cartilage tissue. This study aims to develop an explainable ensemble machine learning model capable of predicting cartilage ...
Yelda Fırat
doaj   +2 more sources

Effects of chronic sleep deprivation on the bone mineral density, bone microarchitecture and body weight of mice: exploratory study [PDF]

Frontiers in Physiology
ObjectiveThis study aimed to investigate the long-term effects of chronic sleep deprivation (CSD) on the bone mineral density (BMD), bone microarchitecture, biomechanical properties and body weight of middle-aged and older male C57BL/6 mice.MethodsTwenty-
Weiwei Xiang, Weiwei Xiang, Zhen Lv, Xinwen Min, Junhao Zhang, Handong Yang, Jun Chen, Jishun Chen, Dongfeng Li, Hao Xu, Chao Luo, Wenwen Wu, Wenwen Wu, Wenwen Wu   +13 more
doaj   +2 more sources

Biomechanical effects of endoscopic ULBD in a reduced‑stiffness lumbar spine model: focus on endplate stress and hypothesis‑generating risk indicators (a finite element analysis) [PDF]

Scientific Reports
This finite element study aimed to compare the biomechanical effects of endoscopic unilateral laminotomy for bilateral decompression (Endo-ULBD) on lumbar spinal stability and load distribution in both healthy and osteoporotic spine models, with a ...
Wei Wei, Zihao Liu, Xing Zhou, Lin Zhao, Mindong Lu, Zhanxiang Wu, Sheng Zhou, Jie Liu   +7 more
doaj   +2 more sources