A study of knee anterior cruciate ligament biomechanics with respect to energy and relaxation
| Autor: | Danjie Zhu, Zenghao Chen, Hongbo Zhang, Saishuai Huang, Hongxin Yang, Ze Cui, Qian Donghai |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Anterior cruciate ligament reconstruction Anterior cruciate ligament medicine.medical_treatment Biophysics Tendons 03 medical and health sciences 0302 clinical medicine Energy absorption Ultimate tensile strength medicine Cadaver Animals Humans Orthopedics and Sports Medicine Knee Anterior Cruciate Ligament Mechanical Phenomena Orthodontics Sheep Tension (physics) Biomechanics Torsion (mechanics) 030229 sport sciences musculoskeletal system Tendon Biomechanical Phenomena medicine.anatomical_structure Energy Metabolism 030217 neurology & neurosurgery |
| Zdroj: | Clinical biomechanics (Bristol, Avon). 80 |
| ISSN: | 1879-1271 |
| Popis: | This research aimed to study the biomechanical properties of sheep tendon under torsion and the tendon energy absorption performance with an externally imposed initial force.Tendons of nine healthy knees of sheep were investigated. In both tests, we investigated energy and relaxation at rotations of 0°, 90°, 180°, and 360°. For both tensile force and tensile displacement at a sampling period of 100 milliseconds, the maximum value of 89 N was selected as the maximum tension state for 600 s of relaxation duration for testing relaxation, and analysed of the average force of the last 30 s.The difference of energy levels of the tendons are significant between twisted groups (180° and 360°) and untwisted group (0°) (P 0.05); The relaxation force decreases significantly with twisted groups (90°,180°, and 360°) and untwists group (0°) (P 0.05). The nine-group tendons show no significant difference at torsion 90° and 180° (P = 0.466). Peak force test shows significant differences between the twisted groups (90°,180°, and 360°) and untwisted group (0°) (P 0.05).The torsion tendon has lower energy absorption and relaxation than the untwisted counterparts; thus, it may be more prone to damage. These results are useful for providing guidance on anterior cruciate ligament reconstruction. |
| Databáze: | OpenAIRE |
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