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22 cze 2022 · Bipolar hemiarthroplasty (BHA) is a surgical treatment for femoral neck fractures of the hip. An artificial joint with two bearings replaces the damaged joint. The bearings allow the head to...
10 lis 2020 · Bipolar prostheses do function as originally intended during gait, but movement primarily occurs at the outer bearing during other examinations. The motion patterns of bipolar prostheses change with the increase in acetabular wear.
Bipolar hemiarthroplasty can provide clinical improvement in a subset of surviving hips, and in cases of failure, conversion to fixed sockets has proved amenable to more straightforward reconstruction with cementless components.
Bipolar hemiarthroplasty of the hip is a routinely done procedure in the elderly with neck of femur fractures. An uncommon yet widely recognized complication is the dislocation of...
Compared to bipolar, a unipolar partial hip replacement only consists of a head firmly attached to the stem of the prosthesis. The bipolar design provides greater stability, movement and also helps protect the articular cartilage.
10 lis 2020 · The bipolar prosthesis behaved as originally intended at this stage, alleviating acetabular cartilage wear because the movement at the outer bearing was replaced partly by that at the inner bearing. Then, an increasing trend in the O/I ratios for these four examinations emerged among the groups.
Use a trial bipolar or unipolar head prosthesis on the definitive stem to confirm appropriate diameter and neck length. The latter affects leg length, soft-tissue tension, and hip stability. With the hip reduced, confirm the range of motion and stability.
