Femoral neck fractures and intertrochanteric fractures often occur in elderly patients, but simultaneous ipsilateral intra- and extracapsular hip fractures are rare. Either osteosynthesis or femoral head prosthesis is performed, but careful rehabilitation is necessary because of the instability of the fracture, even postoperatively. This article describes a 76-year-old man who fell and sustaine...

We have carried out in 24 patients, a two-stage revision arthroplasty of the hip for infection with massive bone loss. We used a custom-made, antibiotic-loaded cement prosthesis as an interim spacer. Fifteen patients had acetabular deficiencies, eight had segmental femoral bone loss and one had a combined defect. There was no recurrence of infection at a mean follow-up of 4.2 years (2 to 7). A ...

PURPOSE To evaluate the effect of prosthesis design on stress profile in the proximal femur after hip resurfacing. METHODS The von Mises stress profile of the native femur was simulated and compared with that of resurfaced femurs using various prosthetic materials (titanium, cobalt-chrome, ceramic), stem lengths (normal, half, short, and no stem), and femoral head coverage (shell size) [260 d...

Total hip replacement is an often-performed orthopedic surgical procedure; the amount of procedures undertaken will increase since our life expectancy is growing. In order to optimize function, hip biomechanics should be restored to as near normal as possible. The goal of this pilot study was to determine whether or not it is feasible to compute the vectorial hip reaction force pathways on the ...

Introduction: Metal prostheses in patients affect the radiotherapy dose distribution. Metal prostheses with high density and atomic number cause major changes in scattering and attenuation of radiation. The present study aims to assess the impact of metal knee prosthesis with various dimensions and materials on radiotherapy dose distribution. Material and Methods: In this research, the Varian L...

Thrust plate prosthesis (TPP) has load-transferring characteristics different from those of conventional intramedullary stemmed prostheses (ISP). We investigate whether prosthesis type (intramedullary or extramedullary application) can improve early functional activities in hospital patients with hip arthroplasty. Early postoperative functional activities of 30 patients with TPP were compared w...

BACKGROUND/AIM For almost two decades extremity amputation has not been the only viable option for patients with from bone cancer in the region of the hip and knee. Remarkable advances in implant technology, surgical reconstructive technique and adoption of new chemotherapy protocols provide a new option for surgeons who diagnose and treat bone tumors. Megaendoprosthesis has become widely accep...

A 22 years patient with no significant pathological history consulted for right hip pain and total right lower limbs functional disability without general health deterioration a week before his hospitalization. Clinical examination performed at the time of admission objectified pain on palpation and after right hip mobilization. Plain radiography (A) and CT scan of the hip (B) objectified a rig...

The painful total hip arthroplasty requires careful evaluation and investigation. This is usually focused on the prosthesis and adjacent anatomical structures. We present a case report of a 64-year-old man who had a Birmingham hip resurfacing procedure for primary osteoarthritis. His hip pain worsened following the procedure and was under systematic investigation for this. Subsequent investiga...

The great success of cemented total hip replacement to treat patients with endstage osteoarthritis and osteonecrosis has been well documented. However, its long-term survivorship has been compromised by progressive development of aseptic loosening, and few hip prostheses could survive beyond 25 years. Aseptic loosening is mainly attributed to bone resorption which is activated by an in-vivo mac...