Abstract：
:Total Knee Arthroplasty is a well-established surgical procedure performed to relieve pain and to restore function in knee osteoarthritis. A proper choice of the implant size is mandatory in order to guarantee the success of the implant and to respect the bone stock of tibial plateau and femoral condyles. The aim of this study was to investigate the combined effect of Body Mass Index and implant size on the wear damage of retrieved knee implants, a still debated subject. To this purpose, twelve total knee prostheses of the same design (NexGen, Zimmer, Warsaw, Indiana) but with different sizes were investigated. These prostheses were all cemented fixed bearing inserts and posterior stabilised. Roughness analyses were performed on femoral components to assess surface modifications. Micro-Raman spectroscopic characterization was performed on polyethylene inserts to evaluate crystallinity changes. A worsening of the surface and a nonhomogeneous aspect was observed in the prostheses characterized by a high ratio between preoperative Body Mass Index and implant size, which we called Ф factor. Delamination, a good indicator for polyethylene osteolysis, was more pronounced in the inserts having a high Ф than in those with a low Ф. Micro-Raman analyses showed more significant crystallinity changes in the prostheses of lower size, in agreement with the results previously obtained in vitro. The findings of the present study suggested that the Ф factor can be considered a predictor factor of the Total Knee Arthroplasty overall performance. Potentially, it could be used as a discriminating factor to redact Total Knee Arthroplasty outcome and prevent complications.
journal_name
J Mech Behav Biomed Materauthors
Battaglia S,Taddei P,Castiello E,Tozzi S,Sudanese A,Affatato Sdoi
10.1016/j.jmbbm.2014.06.012subject
Has Abstractpub_date
2014-10-01 00:00:00pages
69-77eissn
1751-6161issn
1878-0180pii
S1751-6161(14)00176-3journal_volume
38pub_type
杂志文章abstract：:The wear properties of oxidized and non-oxidized gamma-TiAl (a potential biomaterial) as well as Ti-6Al-4V and CP-Ti disks were studied and characterized by means of standard wear tests using a custom made bone pin arrangement. The Ti-based disks were oxidized in air at 500 and 800 degrees C for one hour. The tribolog...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2010.06.006
更新日期：2010-11-01 00:00:00
abstract：:Age-related aortic stiffening is associated with cardiovascular diseases such as heart failure. The mechanical functions of the main structural components of the aorta, such as collagen and elastin, are determined in part by their organisation at the micrometer length scale. With age and disease both components underg...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2016.07.018
更新日期：2016-12-01 00:00:00
abstract：:In an attempt to study the mechanical behavior of bone under indentation, methods of analyses and experimental validations have been developed, with a selected test material. The test material chosen is from an equine cortical bone. Stress-strain relationships are first obtained from conventional mechanical property t...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2014.11.020
更新日期：2015-02-01 00:00:00
abstract：:The aim of this work was to assess the influence of reduction of the apparent mechanical properties of fully load-bearing porous titanium implants used in mandibular bone defects. Segmental 18mm long bone defects were created bilaterally in the lower jaws of adult ewes. One group of 6 ewes (group A) was treated with l...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2016.02.036
更新日期：2016-06-01 00:00:00
abstract：:Numerical studies of the intervertebral disc (IVD) are important to better understand the load transfer and the mechanobiological processes within the disc. Among the relevant calculations, fluid-related outputs are critical to describe and explore accurately the tissue properties. Porohyperelastic finite element mode...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2013.05.012
更新日期：2013-10-01 00:00:00
abstract：:The mechanisms giving rise to vein tortuosity, which is often associated with varicosis, are poorly understood. Recent works suggest that significant biological changes in the wall of varicose veins may precede the mechanical aspects of the disease. To test the hypothesis of tortuosity being a consequence of these cha...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2013.05.006
更新日期：2013-10-01 00:00:00
abstract：:Severe degeneration of the intervertebral disc has an immensely debilitating effect on quality of life that has become a serious health and economic burden throughout the world. The disc plays an integral role in biomechanical movement and support within the spine. The emergence of tissue engineering endeavours to res...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2016.10.015
更新日期：2017-01-01 00:00:00
abstract：:The aim of the study was to investigate the effect of post-heat treatment on the microstructures and fatigue strengths of Co-Cr-Mo (CCM) clasps prepared by selective laser melting (SLM). Clasp specimens and rod-shaped specimens were fabricated by SLM using CCM powders with different angulations (0°, 45°, and 90°). Two...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2019.06.010
更新日期：2019-10-01 00:00:00
abstract：:The use of an adhesive for mesh fixation in hernia repair reduces chronic pain and minimizes tissue damage in the patient. This study was designed to assess the adhesive properties of a medium-chain (n-butyl) cyanoacrylate glue applied as drops or as a spray in a biomechanical and histologic study. Both forms of glue ...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2017.08.008
更新日期：2017-11-01 00:00:00
abstract：:Isolated and packed muscles (e.g. in the calf) exhibit different three-dimensional muscle shapes. In packed muscles, cross-sections are more angular compared to the more elliptical ones in isolated muscles. As far as we know, it has not been examined yet, whether the shape of the muscle in its packed condition influen...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2018.04.006
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVES:The deviation and spread of values measured by tensile strength tests should be significantly reduced by optimized axially pull-off-device. MATERIAL AND METHODS:Factors like geometry, roughness, surface texture and fit of the specimens, the luting procedure (mixing ratio, compacting pressure) were standardi...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2018.07.003
更新日期：2018-11-01 00:00:00
abstract：:In recent years, scaffolds produced in 3D printing technology have become more widespread tool due to providing more advantages than traditional methods in tissue engineering applications. In this research, it was aimed to produce patches for the treatment of tympanic membrane perforations which caused significant hea...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2020.104219
更新日期：2021-02-01 00:00:00
abstract：:In a study of spine injuries in Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF) from 2001-09, spinal fractures sustained by mounted soldiers accounted for 26% of all injuries, and of that, 43% were caused by explosions [1]. The thoracolumbar region is the most vulnerable area of the spine [2], and i...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2019.103398
更新日期：2019-12-01 00:00:00
abstract：:An adaptive finite element simulation was developed to predict fretting wear in a head-neck taper junction of hip joint implant through a two dimensional (2D) model and based on the Archard wear equation. This model represents the most critical section of the head-neck junction which was identified from a 3D model of ...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2017.07.003
更新日期：2017-11-01 00:00:00
abstract：:The mechanical reliability of calcium phosphate cements has restricted their clinical application in load-bearing locations. Although their mechanical strength can be improved using a variety of strategies, their fatigue properties are still unclear, especially after degradation. The evolutions of uniaxial compressive...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2017.07.026
更新日期：2017-11-01 00:00:00
abstract：:Effect of solid distribution between edges and vertices of three-dimensional cellular solid with an open-cell structure was investigated both numerically and experimentally. Finite element analysis (FEA) with continuum elements and appropriate periodic boundary condition was employed to calculate the elastic propertie...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2014.05.018
更新日期：2014-09-01 00:00:00
abstract：:Despite the great potential of Mg and its alloys as material for biodegradable implants, their low resistance to the simultaneous action of corrosion and mechanical stresses in the human body have hampered their use. Stress Corrosion Cracking has been reported as one of the most critical failure modes to overcome to a...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2020.103724
更新日期：2020-06-01 00:00:00
abstract：:Bone fracture is a major health issue worldwide and consequently there have been extensive investigations into the fracture behavior of human cortical bone. However, the fracture properties of human cortical bone under fall-like loading conditions remains poorly documented. Further, most published research has been pe...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2017.03.015
更新日期：2017-07-01 00:00:00
abstract：:Some ultraviolet radiation (UV) is essential to the body as it stimulates the production of vitamin D, yet overexposure has deleterious consequences for the skin. UV induces structural and cellular changes across the different layers of skin tissue leading to mechanical and oxidative stress. Both are critical paramete...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2013.02.008
更新日期：2013-12-01 00:00:00
abstract：AIM:The aim of this in vitro study was to determine the two-body wear resistance of modern direct dental restorative materials. METHODS:Eight standardized specimens were prepared from 14 dental restorative materials (nano-, micro-, hybrid-, macrofilled composites; compomer, silorane, ormocer); a veneering composite (S...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2010.06.001
更新日期：2011-04-01 00:00:00
abstract：:In this study, the bone mineral density (BMD), geometry, macroscopic viscoelastic properties and mechanical strength in five different groups of Sprague-Dawley rats (sham operated, ovariectomized with vehicle, parathyroid hormone and/or ibandronate administration) were examined by peripheral quantitative computed tomo...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2013.03.009
更新日期：2013-06-01 00:00:00
abstract：:The inelastic deformability of the mineralised matrix in bones is critical to their high toughness, but the nanoscale mechanisms are incompletely understood. Antler is a tough bone type, with a nanostructure composed of mineralised collagen fibrils ∼100nm diameter. We track the fibrillar deformation of antler tissue d...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2013.03.020
更新日期：2013-12-01 00:00:00
abstract：:Silver nanoparticles embedded within a nanofibrous polymer matrix have significant attention in recent years as an antimicrobial wound dressing materials. Herein, we have fabricated a novel Ag-polyurethane-zein hybrid nanofibrous scaffold for wound dressing applications. AgNPs were synthesized in-situ via reduction of...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2016.07.034
更新日期：2017-01-01 00:00:00
abstract：:Anterior cervical discectomy with fusion is a common surgical treatment that can relieve patients suffering from cervical spondylosis. This surgery is most commonly performed with the use of a cervical cage. One serious complication of the fusion cages commercially available in the market is subsidence of the cage wit...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2018.05.040
更新日期：2018-09-01 00:00:00
abstract：:Fluorine substituted hydroxyapatite (FAp) with different degree of fluorine (F) substitution, has been synthesized using hydrothermal synthesis method. In the present work, as synthesized powders were consolidated by sintering at 1200 °C in air for 1 h. The sintered specimens were characterized using Fourier transform...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2019.03.032
更新日期：2019-07-01 00:00:00
abstract：:We hypothesized that female gender may have a specific negative impact on the mechanical characteristics, composition, and expression of matrix metalloproteinases/tissue inhibitors (MMPs/TIMPs) in the wall of ascending thoracic aortic aneurysms (ATAAs). Degenerative ATAAs were resected from 35 patients (age: 67±2 year...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2014.02.015
更新日期：2014-06-01 00:00:00
abstract：:This study compared the fatigue performance and the stress distribution of endodontically treated molars restored with endocrowns obtained with lithium disilicate glass-ceramic or a polymer-infiltrated ceramic network, both processed by CAD-CAM, and direct composite restorations. Forty-eight human mandibular molars we...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2019.103401
更新日期：2019-12-01 00:00:00
abstract：:Muscle fiber direction strain provides invaluable information for characterizing muscle function. However, methods to study this for human muscles in vivo are lacking. Using magnetic resonance (MR) imaging based deformation analyses and diffusion tensor (DT) imaging based tractography combined, we aimed to assess musc...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2016.06.031
更新日期：2016-10-01 00:00:00
abstract：:In this paper we hypothesize that the layer-separated residual stresses and mechanical properties of layer-separated thoracic aorta arteries may be dependent on arterial location of the vessel. To demonstrate any possible position differences, we measured the axial pre-stretch and opening angle and performed uniaxial ...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2015.05.024
更新日期：2015-10-01 00:00:00
abstract：BACKGROUND:There are several factors that contribute to the failure of total ankle replacement (TAR). Aseptic loosening is one of the primary mechanisms of failure in TAR. Since a cross-linked ultrahigh molecular weight polyethylene (UHMWPE) is used as liner material, there is a need to quantify and develop methods to ...
journal_title：Journal of the mechanical behavior of biomedical materials
pub_type： 杂志文章
doi：10.1016/j.jmbbm.2014.12.010
更新日期：2015-04-01 00:00:00
