Dissertation > Excellent graduate degree dissertation topics show
Repeated freezing and thawing biomechanical effects on human tendon allograft
Author: HuangHongJie
Tutor: SunKang
School: Qingdao University
Course: Sports Medicine
Keywords: tendon biomechanics allograft freeze-thaw ACL reconstruction
CLC: R318.01
Type: Master's thesis
Year: 2011
Downloads: 12
Quote: 0
Read: Download Dissertation
Abstract
|
ObjectiveTo explore the biomechanics effects of multiple freeze-thaw on human allograft tendons.MetrhodsThirty tendons (flexor digitorum superficialis and flexor pollicis longus tendon) were taken from three fresh cadavers. We divided these tendons into six groups randomly (Fresh group;1 cycle,2 cycle,3 cycle,5 cycle or 10 cycle freeze-thaw groups). We estimated structural and mechanical properties as well as viscoelastic change of each group, and performed Statistical comparison of results among groups.ResultsThe results of 1 cycle,2 cycle and 3 cycle freeze-thaw groups were similar to the fresh tendons. The tendons that underwent more than three freeze-thaw cycles demonstrated a significantly lower ultimate load and maximum stress (P<0.05). Moreover, the 5 and 10 cycle groups performed a significant increase in viscoelastic properties compared with other groups.ConclusionIn the cryopreservation of tendon allografts, the cycle of freeze-thaw should not exceed 3 times. Multiple cycle freeze-thaw will weaken the biomechanical properties of tendon allografts, making grafts easier to fatigue or even rupture.
|
Related Dissertations
- Analysis of Concrete Durability under Combined Action of Freeze-thaw Cycles and Chloride Ion Erosion,TU528
- Study on Pretreatment of Clarification with Extracting Solution from Silkworm Dropping,TQ461
- Black Soil Freeze-thaw Function Mechanism and Soil Erosion Simulation Study in the Spring Thaw Period,S157
- The Establishment and Preliminary Application of the Three-dimensional Finite Element Model of Ankle Joint,R687.3
- The Biomechanics and Imageology Preliminary Studies of Lumbar Intertransverse Absorbable Fusion Cage in the Process of Biodegradation,R687.3
- Biological Properties of EDC Cross-linked Acellular Tendon of Banna Mini-pig Inbred-lines Abstract,R687.2
- The Study about Extracorporeal Shock Wave Therapy for Rotator Cuff Injury,R687.2
- Local Administration of Interleukin-1 Receptor Antagonist Intervening Achilles Tendon Contracture in Rats: A Empirical Study,R686
- The Role of Toll-like Receptors 2 and 4 in Cardiac Allograft Rejection,R654.2
- An Experimental Research on the Effects of Low Level Laser Therapy on Expression of Collagen-Ⅰ m Rnaand TGF-β1 mRNA in Achilles Tendinopathy Enthesiopathy in Rats,G804.2
- Biomechanical Research and Clinical Application of the Dynamic Cervical Implant,R687.3
- Biomechanical Research and Clinical Application of Coflex TM Lumbar Interspinous Dynamic Stabilize System,R687.3
- Development and Biomechanical Analysis of a Novel Extensible Pedicle Fixture,R687.3
- Experimental Biocompatibility and Biomechanical Evaluation of Silk Protein-coated Polypropylene Meshes,R318.01
- Ligament functional anatomy and biomechanics studies acromioclavicular,R687.3
- Different concentrations of trehalose cryopreserved in liquid nitrogen valved homograft aortic tissue protection and its effect on the expression of caspase-3,R318.52
- Human quadriceps tendon reconstruction of the posterior cruciate ligament knee biomechanical studies of,R687.3
- The Effects and Mechanisms Underlying SOCS3 Gene Transfer Prolongs the Survival of Murine Cardiac Allograft,R654.2
- Chloride erosion and freeze-thaw cycles under high strength bond strength of fly ash concrete,TU528
- Mice patellar tendon stem cell differentiation mechanical characteristics of the process,Q27
- Study on Effects of Hydrocolloids on Characteristics of Tapioca Starch and Derivatives,TS231
CLC: > Medicine, health > Basic Medical > Medical science in general > Biomedical Engineering > General issues > Biomechanics
© 2012 www.DissertationTopic.Net Mobile
|