Abstract Background The plate-to-disc distance (PDD) is an important factor affecting the degeneration of adjacent segments after anterior cervical discectomy and fusion (ACDF). However, most suitable PDD controversial. This study examined intervertebral disc stress, bone graft titanium plate stress screw to evaluate biomechanical effect different on surgical segment following C5/C6 ACDF. Metho...

BACKGROUND Loss of meniscal tissue is correlated with early osteoarthritis but few data exist regarding detailed biomechanical properties (e.g. viscoelastic behavior) of menisci in different species commonly used as animal models. The purpose of the current study was to biomechanically characterize bovine, ovine, and porcine menisci (each n = 6, midpart of the medial meniscus) and compare their...

Impaction allografting is the only technique, to date, that has been shown to reverse the loss of bone stock encountered during revision hip arthroplasty. However, early stem subsidence, dislocations and a high occurrence of periprosthetic fractures are well documented with this method. This article reviews the biomechanical and biological characteristics of compacted morsellised graft, on the ...

Until recently, corneal biomechanical properties could not be measured in vivo. The ocular response analyzer is a new, noninvasive device that analyses corneal biomechanical properties simply and rapidly. The ORA allows cornea compensated IOP measurements and can estimate corneal hysteresis (CH) and corneal resistance factor (CRF). It is designed to improve the accuracy of IOP measurement by us...

BACKGROUND Thoracic aortic rupture and aortopulmonary fistulation are rare conditions in horses. It mainly affects Friesian horses. Intrinsic differences in biomechanical properties of the aortic wall might predispose this breed. The biomechanical and biochemical properties of the thoracic aorta were characterized in warmblood horses, unaffected Friesian horses and Friesians with aortic rupture...

We describe the development and implementation of an eecient spectral element code for simulating transitional ows in complex three-dimensional domains. Critical to this eeort is the use of geometrically nonconforming elements that allow localized reenement in regions of interest, coupled with a stabilized high-order time-split formulation of the semi-discrete Navier-Stokes equations. Simulatio...

We describe the development and implementation of an efficient spectral element code for simulating transitional flows in complex three-dimensional domains. Critical to this effort is the use of geometrically nonconforming elements that allow localized refinement in regions of interest, coupled with a stabilized high-order time-split formulation of the semi-discrete Navier–Stokes equations. Sim...

BACKGROUND Several different surgical techniques have been described to address the coracoclavicular (CC) ligaments in acromioclavicular (AC) joint injuries. However, very few techniques focus on reconstructing the AC ligaments, despite its importance in providing stability. The purpose of our study was to compare the biomechanical properties of two free-tissue graft techniques that reconstruct...

conclusion the study evaluated the biomechanical properties of the on and peripapillary structures in vivo with swe in glaucoma. we observed stiffer on and peripapillary tissue in glaucomatous eyes, indicating that swe claims new perspectives in the evaluation of on and peripapillary structures in glaucoma disease. background primary open-angle glaucoma is a multifactorial serious disease chara...

Background: Bone defects caused by trauma, infection or tumor resection are common in orthopedic clinic and depending on the extent of the fracture; the vast majority require treatment with bone substitutes. Among the bone grafts employees, the autograft is defined as the gold standard, but with some limitations, principally related to morbidity at the site of its removal, with the need to sear...