Bipolar prothesis

Range of motion and stability were checked after reduction. Over time, Bipolar prothesis cells from the patient would grow into these spaces and fix the stem in position.

The second-generation cementing technique was utilized.

Bicentric bipolar hip prosthesis: A radiological study of movement at the interprosthetic joint

Thorough bony bed cleaning was performed by high speed pulsatile lavage. This feeling usually subsides by 6 months after surgery as the body adjusts Bipolar prothesis the new hip joint.

In some case, where the tip of the femur can be saved, or the acetabular surface is not badly eroded, new surfaces are preferable to a bipolar replacement, as the former procedure is preferable for young and active people.

The Exeter hip stem was developed in the United Kingdom during the same time as the Charnley device. Significant difference existed between the two groups in operation time, blood loss, transfusion volume and cost of hospitalization, while no remarkable difference was identified in hospitalization period, general complications, joint function, pain, rate of revision and mortality.

The p-value less than 0. THA was performed on the patients admitted in the hospital before December 31,but it was substituted by BA later in after the occurrence of three dislocations and for the sake of reducing dislocation rate and cost. The fragments of the greater trochanter were repositioned and temporarily fixed by using one or two bone forceps.

The Hip Joint - Before getting into the specifics of the bipolar hip replacement, it may be helpful to look into the mechanics of the hip, and why a replacement is sometimes needed. The articular interface of the hip is a simple ball and socket joint.

Metal liners to mate with a metal head were also developed.

Hip replacement

Written informed consent was obtained from participants after adequate explanation of the procedures of the study. After the femoral head was removed, the diameter of the head was measured to determine the approximate size of the outer head of the chosen prosthesis.

Wheeless’ Textbook of Orthopaedics

Unipolar And Bipolar - In some hip replacement procedures, bone is not actually replaced with a prosthetic device, but the ball of the femur is resurfaced, or the acetabular cavity is resurfaced, or both. The shell is made of metal; the outside has a porous coating while the inside contains a locking mechanism designed to accept a liner.

Loosening[ edit ] Hip prosthesis displaying aseptic loosening arrows Hip prosthesis zones according to DeLee and Charnley, [31] and Gruen.

Anteroposterior radiographs of the hip were taken at each follow-up for the evidence of subsidence of the stem, migration of acetabular component, erosion of acetabulum, and heterotopic ossification.

The demograghic characteristics of the patients are summarized in Table 1. There are two types of fixation: They may also cause an audible, high pitched squeaking noise with activity. The BA group had a mean follow-up period of. Transcervical fractures of the hip treated with the Bateman bipolar prosthesis.

Comparison of bipolar implants with fixed-neck prostheses in femoral-neck fractures. The long-stem bipolar prosthesis in surgery of the hip. Experience with bipolar prosthesis in femoral neck fractures in.

Bipolar Hip Prosthesis

The bipolar hip prostheses after some time functions as a unipolar device. There is a need to change the design of bipolar hip prostheses to make it function as a bipolar device over a prolonged period of time.

A bicentric bipolar hip prosthesis was used as an implant for various conditions of the hip. What is a bipolar hemiarthroplasty? Treatment for femoral neck fractures can be successfully achieved through a bipolar hemiarthroplasty.

Hemiarthroplasty is a surgical procedure that replaces one half of the hip joint with a prosthetic, while leaving the other half intact. With an aim to satisfy our clients, we are engaged in offering an extensive range of Bipolar Hip Prosthesis.

These are manufactured using fine quality material and latest technology in compliance with industrial quality standards. These are used for hip surgery in case of severe damage in bone. Additionally, we offer our products at reasonable prices.

Hemiarthroplasty means replacing the hip joint with a metal prosthesis.

Hip Bipolar Hemiarthroplasty for Femoral Neck Fracture

Unipolar prostheses has a one-piece design where the hip movement occurs between the prosthesis and the acetabulum (hip socket).

A bipolar prosthesis has an additional artificial joint between the two components of the prosthesis. Jun 22,  · The present study was conducted to compare bipolar hemiarthroplasty (BA) with total hip arthroplasty (THA) in treatment of unstable intertrochanteric fractures in elderly osteoporotic patients.

Bipolar prothesis
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