Total hip replacement has evolved into one of the most frequently performed reconstructive procedures in orthopaedic surgery today. A modified anterior approach developed by the senior surgeon has been utilized in performing over 3,000 operations in the past two decades. It is a unique and facile exposure. It can be easily applied to primary and revision surgery. Noncemented prostheses have bee...

INTRODUCTION Girdlestone’s arthroplasty was first performed and documented by Schmalz (1817) and White (1821) to treat children with coxofemoral joint tuberculosis(1-3). In 1928, Girdlestone briefly described this procedure, using it for treating hip tuberculosis(4) and later, in 1943, Girdlestone globally disseminated this technique as a solution for treating septic and tuberculous hip patholo...

INTRODUCTION The development of new, highly sophisticated materials for the articulating surfaces of total hip endoprostheses has led to an increasing demand for testing and verification. This includes tests and research regarding bio-compatibility, static load bearing capacity of the prostheses as well as tribological investigations. Since it has been found that wear debris play a dominant rol...

BACKGROUND AND PURPOSE Particles originating from the articulating surfaces of hip endoprostheses often induce an inflammatory response, which can be related to implant failure. We therefore analyzed the metal content in capsular tissue from 44 McKee-Farrar metal-on-metal hip prostheses (with 3 different head sizes) and we also analyzed the morphological structure of layers located on articulat...

Metal objects in the body such as hip prostheses cause artifacts in CT images. When CT images degraded by artifacts are used for treatment planning of radiotherapy, the artifacts can yield inaccurate dose calculations and, for particle beams, erroneous penetration depths. A metal artifact reduction software (O-MAR) installed on a Philips Brilliance Big Bore CT has been tested for applications i...

PURPOSE To improve function after pelvic resection involving the acetabulum, using an anatomic composite implant built with screws and cement. MATERIAL AND METHOD Since 1990, 66 patients with peri-acetabular bone malignancies have been treated by extensive resection followed by hand-modelled innominate prosthesis with partially constrained total hip prosthesis. The hand-modelled innominate pr...

With the exhibit of pseudotumor discoveries around hip replacements, the search for the cause of such abnormal masses has become a topic of great interest. Possible areas of causation include metal-on-metal hip replacements compared to metal-on-polyethylene hip replacements, patient hypersensitivity to prosthesis debris, or even prosthesis surgical position has been investigated. Although more ...

OBJECTIVE The study aims to compare the stress shielding effects of implantable anatomical and traditional prostheses after in vitro total hip joint replacement simulation. The study serves as a biomechanical basis for novel artificial prostheses and for clinical hip joint replacements. METHODS Sixteen femoral specimens from adult male corpses were randomly divided into two groups: the tradit...