At one year, further radiographs had been performed for 106 (23%) patients after the initial post-operative film. No abnormality was identified in 74, 20 patients had suffered a contralateral fractured neck of femur or pubic ramus fracture, three showed heterotopic ossification, two sustained a dislocation (0.4%) and one sustained a periprosthetic fracture. Additional six patients were imaged following a diagnosis of wound infection.
When the hip is fractured, the socket portion (the acetabulum) is usually not injured. If the articular cartilage of the hip socket is in good condition, the metal ball of the hemiarthroplasty prosthesis can glide against the cartilage without damaging the surface. This procedure is easier to do than replacing both the ball and the socket, and it allows patients to begin moving right away after surgery. Early movement helps prevent dangerous complications that come from being immobilized in bed.
Bipolar Hip Replacement | Total Hip Replacement, …
Hip replacement surgery involves removing the diseased hip joint and replacing it with artificial prosthetic components. Conditions that may damage the hip, necessitating a hip replacement, include osteoarthritis, rheumatoid arthritis, posttraumatic arthritis, hip fracture, avascular necrosis/osteonecrosis, a bone tumor, and childhood hip disease. The goal of replacement surgery is to relieve pain and restore mobility and function of the damaged hip joint.
Disassembly of Cemented Bipolar Prothesis of the Hip
â¢ 00.71, Revision of hip replacement, acetabular component (includes partial hip revision of acetabular component only and that with exchange of acetabular cup and liner or exchange of femoral head);
Hip Replacement | Princeton | New Jersey | Monroe …
Hip replacement has become necessary for your arthritic hip: this is one of the most effective operations known and should give you many years of freedom from pain.
English term or phrase: bipolar hip prosthesis: ..
Between 2002 and 2007, fifty elderly patients with displaced femoral neck fractures were treated with hip replacement at Emergency Hospital, Mansoura University. Patients were randomly selected, 25 patients had either cemented or cementless bipolar prosthesis, and another 25 patients had either cemented or cementless fixed-head prosthesis. There were 34 women and 16 men with an average age of 63.5 years (range between 55 and 72 years). All patients were followed up both clinically and radiologically for an average 4.4 years (range between 2 and 6 years). At the final follow-up, the average Harris hip score among the bipolar group was 92 points (range between 72 and 97 points), while the fixed-head group was 84 points (range between 65 and 95 points). Radiologically, joint space narrowing more than 2 mm was found in only 8% (2 patients) among the bipolar group, and in 28% (7 patients) of the fixed-head group. Through the follow-up period, total hip replacement was needed in two cases of the bipolar group and seven cases of the fixed-head group. Bipolar hemiarthroplasty offered a better range of movement with less pain and more stability than the fixed-head hemiarthroplasty in elderly patients with displaced femoral neck fractures.
Bipolar Hip Prosthesis - Indian Orthopaedic
Since displaced intracapsular femoral neck fractures have a significant risk of nonunion and avascular necrosis, prosthetic replacement is often recommended in ambulatory, elderly patients . The fixed-head hemiarthroplasty is associated with high acetablular erosion and protrusion rates, which affect the clinical results and makes revision to a total hip arthroplasty difficult .
It is a bipolar cemented prosthesis.
These complications have led many surgeons to choose a bipolar design. The theoretical advantage of a bipolar hemiarthroplasty is to decrease acetabular erosion and wear and their associated symptoms ; however, there is still some debate concerning the benefits of bipolar versus the fixed-head hemiarthroplasty . The aims of this study are to evaluate the results of bipolar versus fixed-head hemiarthroplasty for displaced femoral neck fractures in elderly patients and to address the problems of prosthesis selection.