The subject considered in the paper is a part of work in which the main gole is creation of the tool for evaluation of patient hip joint internal loadings especially before and after arthroplasty. Internal loadings evaluation in human motion structures is still a present task in biomechanics and biomechanical engineering. The forces of muscle actuators were considered before in the aspect of co...

UNLABELLED To perform a clinical and radiographic assessment of patients undergoing surgical treatment using a cortical structural homologous bone graft for femoral reconstruction following mechanical failure of total hip arthroplasty and periprosthetic fractures. METHODS A retrospective study was conducted on 27 patients who underwent surgical treatment for femoral reconstruction following m...

The canine model remains an animal of choice for determining the efficacy and safety of various materials and designs used in human total hip replacement (THR). The primate also is used in orthopedic-related research for studying limb anatomy, gait, and age-related bone loss. In order to better understand the appropriateness of these animal models for human THR, external morphologies of thirty-...

Computational models may have the ability to quantify the relationship between hip morphology, cartilage mechanics and osteoarthritis. Most models have assumed the hip joint to be a perfect ball and socket joint and have neglected deformation at the bone-cartilage interface. The objective of this study was to analyze finite element (FE) models of hip cartilage mechanics with varying degrees of ...

OBJECTIVE To investigate whether a postoperative weight-bearing regimen affects changes in bone mineral density and body composition after uncemented total hip arthroplasty, and to investigate the changes over a 5-year period after the surgical procedure. DESIGN Secondary analysis of a previous randomized controlled trial. METHODS A total of 39 patients were randomized to immediate full wei...

Background: Aluminum has known neurotoxicity and may impair short-term bone health. In a randomised trial we showed reduced neurodevelopmental scores in preterm infants previously exposed to aluminum from parenteral nutrition solutions. Here, in the same cohort, we test the hypothesis that neonatal aluminum exposure also adversely affects long-term bone health, as indicated by reduced bone mass...

We matched 78 patients with a loose cemented Charnley Elite Plus total hip replacement (THR) by age, gender, race, prosthesis and time from surgery with 49 patients with a well-fixed stable hip replacement, to determine if poor bone quality predisposes to loosening. Clinical, radiological, biomechanical and bone mineral density indicators of bone quality were assessed. Patients with loose repla...

We reviewed the plain radiographs, bone scans and hip aspiration results of 54 patients with painful hip arthroplasties which had been explored surgically, to compare the results of the investigations with the operative findings. For acetabular loosening, the sensitivity and specificity of bone scanning were 87% and 95%, with an accuracy of 90%: for serial plain radiography sensitivity was 95%,...

The biomechanics of the hip joint has been of great interest to researchers and clinicians since the early days of anatomical studies. Julius Wolff addressed the relation between the inner architecture of the bone and the functional loading already in the nineteenth century [31] and Friedrich Pauwels built the foundation for a mechanical approach to understand joint loading 65 years later [24]....

abstract introduction: adequate intake of fruits and vegetables as part of the daily diet could help prevent major non-communicable diseases including osteoporosis. some nutrients abundant in fruits and vegetables have been shown to affect bone health. in the present study we evaluated fruit and vegetable intake in postmenopausal women with osteopenia who had referred to bone mineral densitomet...