نتایج جستجو برای: biomechanical strength

تعداد نتایج: 224706  

2015
Shixin Wang Zhenling Qiu

Flexor digitorum tendon injuries are challenging conditions to manage to ensure optimal patient outcomes. While several surgical approaches with high success rates have been developed, there remains no gold standard for suture technique for the repair of flexor tendon injuries. In this study, we compared two distinct peripheral suture methods on the strength of repaired tendons. Pig flexor digi...

2015
Edmar Stieven Filho Mariane Henseler Damaceno Mendes Stephanie Claudino Filipe Baracho Paulo César Borges Luiz Antonio Munhoz da Cunha

OBJECTIVE To verify whether the combination of tibial cross pin fixation and femoral screw fixation presents biomechanical advantages when compared to femoral cross pin fixation and tibial screw fixation for the reconstruction of the anterior cruciate ligament (ACL). METHODS Thirty-eight porcine knees and bovine extensor digitorum tendons were used as the graft materials. The tests were perfo...

Journal: :The Journal of Bone and Joint Surgery-American Volume 2009

Journal: :Human factors 2005
Thurmon E. Lockhart James L. Smith Jeffrey C. Woldstad

Although much has been learned in recent decades about the deterioration of muscular strength, gait adaptations, and sensory degradation among older adults, little is known about how these intrinsic changes affect biomechanical parameters associated with slip-induced fall accidents. In general, the objective of this laboratory study was to investigate the process of initiation, detection, and r...

Journal: :Clinical cases in mineral and bone metabolism : the official journal of the Italian Society of Osteoporosis, Mineral Metabolism, and Skeletal Diseases 2011
Paolo Tranquilli Leali Francesco Muresu Alessandro Melis Adriano Ruggiu Alexandros Zachos Carlo Doria

Strategies to reduce fracture risk must be based on the understanding of the mechanisms that underline the increased incidence of fractures with age and with bone diseases that reduce bone stock. There is evidence that in addition to bone minerals density, other factors influence bone strength. This study reviews the biomechanical aspects of age-related fractures, including the interacting role...

Journal: :The American journal of sports medicine 2005
Robert F LaPrade Timothy S Bollom Fred A Wentorf Nicholas J Wills Keith Meister

BACKGROUND The individual biomechanical strength properties of the fibular collateral ligament, popliteofibular ligament, and popliteus tendon have not been well elucidated by previous studies. To define the necessary strength requirements for a posterolateral knee reconstruction, these properties for the main individual structures of the posterolateral knee need to be defined. HYPOTHESIS The...

Journal: :The American journal of sports medicine 2003
David H Kim David R Wilson Aaron T Hecker Tobias M Jung Charles H Brown

BACKGROUND Twisting and braiding of four-strand hamstring tendon grafts used for anterior cruciate ligament reconstruction has been proposed, but not proven, as a method of improving tensile properties. HYPOTHESIS Twisting and braiding four-strand human hamstring tendon grafts will have no significant effect on initial graft strength or stiffness. STUDY DESIGN Paired in vitro biomechanical ...

Journal: :Journal of applied biomechanics 2013
Steven L Fischer Bryan R Picco Richard P Wells Clark R Dickerson

Exerting manual forces is critical during occupational performance. Therefore, being able to estimate maximum force capacity is particularly useful for determining how these manual exertion demands relate to available capacity. To facilitate this type of prediction requires a complete understanding of how maximum force capacity is governed biomechanically. This research focused on identifying h...

Journal: :Journal of biomechanics 2011
Jeremy P M Mogk M Elise Johanson Vincent R Hentz Katherine R Saul Wendy M Murray

Biomechanical simulations of tendon transfers performed following tetraplegia suggest that surgical tensioning influences clinical outcomes. However, previous studies have focused on the biomechanical properties of only the transferred muscle. We developed simulations of the tetraplegic upper limb following transfer of the brachioradialis (BR) to the flexor pollicis longus (FPL) to examine the ...

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