A prospective randomised study was carried out to evaluate the blood loss in 30 total knee arthropasty patients, who were divided randomly into two equal groups; one having new technique bone plug and bone wax, while the other used a bone plug only. The surgery was carried out by a single surgeon at one institution using the uniform approach and standard operation. The mean drainage of blood wa...

In total knee arthroplasty, infection has always been cited as being the number one cause of failure. However, more recent studies have shown aseptic loosening as the top reason for failure now. Proper cement technique is an important factor in reducing the occurrence of aseptic loosening. Clean and dried bone are important in achieving rigid cement fixation. Subchondral cysts may be hidden bel...

To determine whether plain radiographs accurately represent the true cement-bone interlock, a comparison was made between radiographs and macroscopic morphology on cross sections of 11 human femora into which a cemented endoprosthesis had been inserted. Four femora had been retrieved postmortem from patients with a hip arthroplasty, and seven cadaver femora were cemented under varying condition...

When a guided tissue regeneration (GTR) membrane is placed in an interproximal area, adjustment of the membrane is difficult because of the complex anatomy of the root surface and presence of bone defects, thus prolonging the surgery. This report describes the clinical application of cone beam computed tomography (CT) images to aid insertion of a barrier membrane in the treatment of interproxim...

 Background: To determine the efficacy of three different antiseptic solutions (Control group (I), Antibiotic solution – Neomycin and polymyxin (II), Chlorhexidine 0.4% (III), and povidone – iodine 10% (IV)) in disinfecting contaminated bone fragments. Methods: Under sterile conditions, the femora of 12 rabbits were removed and cut into six millimeter pieces. A total of 200 bone specimens were ...

BACKGROUND According to WHO 2008 guidelines, the required percentage of cells manifesting dysplasia in the bone marrow to qualify as significant is 10% or over in one or more hematopoietic cell lineages, but this threshold is controversial. No 'normal' values have been established. Therefore, we investigated dyshematopoiesis in bone marrow aspirate squash preparations of 120 healthy bone marrow...

BACKGROUND Osteointegration of press-fit radial head implants is achieved by limiting micromotion between the stem and bone. Aspects of stem design that contribute to the enhancement of initial stability (ie, stem diameter and surface coating) have been investigated. The importance of total prosthesis length and level of the neck cut has not been examined. METHODS Cadaveric radii were implant...

OBJECTIVE As the contamination of implant surface seriously affects the early osseointegration of implants and reduces the survival rate of implants, it has attracted wide attention of researchers. The most oral titanium implants used in current clinical applications are stored in sealed packages. During the process of packaging, storage and usage, the implants inevitably contact air, which res...

It is sometimes necessary to form highly porous polymeric tissue engineering scaffolds into various shapes and sizes. Ideally, in these cases, the three-dimensional morphology should be maintained to the outer margins of the scaffold so as to provide optimum function. Many biodegradable polymeric scaffolds are soft and delicate, however, and their poor physical strength presents a challenge whe...

We analyze a radius bone fragment of a raven (Corvus corax) from Zaskalnaya VI rock shelter, Crimea. The object bears seven notches and comes from an archaeological level attributed to a Micoquian industry dated to between 38 and 43 cal kyr BP. Our study aims to examine the degree of regularity and intentionality of this set of notches through their technological and morphometric analysis, comp...