Computational models of the natural hip joint are needed to examine and optimise tissue sparing interventions where the natural cartilage remains part of the bearing surfaces. Although the importance of interstitial fluid pressurisation in the performance of cartilage has long been recognized, few studies have investigated the time dependent interstitial fluid pressurisation in a three dimensio...

Hemiarthroplasty has been successfully used for treatment of femoral neck fractures in the elderly. With increased demand being placed on the prostheses, some of them failed and had to be converted to total hip replacement. The aim of this study is to evaluate the result of conversion arthroplasty in Egyptian population. We report 47 patients who had conversion to total hip arthroplasty followi...

BACKGROUND Bipolar hip hemiarthroplasty is used in the management of fractures of the proximal femur. The dual articulation is cited as advantageous in comparison to unipolar prostheses as it decreases acetabular erosion, has a lower dislocation rates and is easier to convert to a total hip arthroplasty (THA) should the need arise. However, these claims are debatable. Our study examines the rat...

Trochanteric femoral fractures are a major problem in the elderly because of higher bone fragility due to osteoporosis. Numerous chronic illnesses, which usually affect the elderly, aggravate and complicate their surgical treatment. Trochanteric femoral fractures results in high morbidity and mortality in elderly patients. The aim of our study is to evaluate the effectiveness of hemiarthroplast...

PURPOSE. To compare surgical outcome of hip fractures (in terms of the ability to walk and complications) in patients with and without Parkinson's disease (PD). METHODS. Records of 207 patients who underwent surgery for femoral neck fractures were reviewed. Of whom, 9 men and 26 women with PD aged 58 to 89 (mean, 76.8) years underwent hemiarthroplasty for subcapital fractures (n=22) or internal...

PURPOSE To evaluate early functional outcomes of hemiarthroplasty for 3- or 4-part proximal humeral fractures. METHODS 16 men and 11 women aged 27 to 83 (mean, 56) years underwent hemiarthroplasty for comminuted 3-part (n=13) or 4-part (n=14) proximal humeral fractures. All the patients reported normal shoulder function prior to injury. The range of shoulder motion and muscle power were evalu...

BACKGROUND Bone cement implantation syndrome (BCIS) is characterized by hypoxia, hypotension, and loss of consciousness occurring around the time of bone cementation. Using a recently proposed severity classification of BCIS, we estimated the incidence of and risk factors for BCIS and its impact on mortality in cemented hemiarthroplasty for femoral neck fractures. METHODS In this retrospectiv...

BACKGROUND In the era of bundled payments, many hospitals are responsible for costs from admission through 90 days postdischarge. Although bundled episodes for hip fracture will have a separate target price for the bundle, little is known about the 90-day resource use burden for this patient population. METHODS Using Medicare 100% Standard Analytic Files (2010-2014), we identified patients un...

Objective: To compare total hip arthroplasty and hemiarthroplasty in elderly patients with femoral neck fracture. Methods: 100 cases of elderly patients with femoral neck fractures enrolled in our hospital from October 17, 2015 to March 17, 2017 were selected and divided into 2 groups (Group A and Group B) randomly with 50 patients in each group. Patients in Group A were treated with total hip ...

Primary articulation of bipolar hemiarthroplasty systems is at the femoral head-liner interface. The purpose of this study was to compare observed damage modes on 36 retrieved bipolar systems with implant, demographic, intraoperative, and radiographic data to elucidate the effects of component design, specifically locking mechanism, on clinical performance. Retrieved bipolar hip hemiarthroplast...