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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...
This protocol applies to the standard total hip arthroplasty/hemiarthroplasty and hip resurfacing. In a revision total hip arthroplasty, or in cases where there is more connective tissue involvement or bone grafting, Phase I and II should be progressed more cautiously to ensure adequate healing.
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.
15 gru 2021 · A unipolar hip prosthesis has a one-piece design where the hip movement occurs between the prosthesis head and the native acetabulum. Unipolar prostheses are broadly of two types, Austin Moore and Thompson prosthesis.
21 lip 2024 · unipolar and a bipolar prosthesis for use in hemiarthroplasty. The theoretical decrease in articular cartilage wear and increased range of motion with the bipolar device are frequently cited as the benefits obtained by choosing a bipolar design. Most frequently, cost containment is cited as the primary indication for use of a unipolar device.
28 sie 2015 · Displaced femoral neck fractures (FNFs) in healthy elderly patients have traditionally been managed with hemiarthroplasty (HA) or total hip arthroplasty (THA), with studies suggesting that THA may be the better option.
15 paź 2020 · The main theoretical advantage of a bipolar femoral prosthesis is decreased acetabular cartilage erosion secondary to shared articulation within the dual-bearing system . This is in contrast to the fixed unipolar femoral prosthesis which articulates directly at the acetabular-implant interface.
