HIP Prosthesis» Modular Bipolar System

In this case, the patient chose bipolar hemiarthroplasty for treatment because she was a household ambulator and had a high risk for hip dislocation following total hip replacement due to her poor muscle condition. An operation for long-stem cemented bipolar hemiarthroplasty was done (CPT, Zimmer, Inc., Warsaw, IN, USA). The operation was done by the posterior approach. After the stem was placed in the femoral canal, the femoral head component was coupled with one stroke of a hammer after the stem neck was cleaned and dried. After insertion of the femoral head, the surgeon inspected the coupling again by trying to pull the head out of the stem neck gently by finger to confirm a perfect coupling.

Dislocation of a hip prosthesis is a common complication

Sample Name: Hemiarthroplasty - Austin-Moore Bipolar

Sample Name: Hemiarthroplasty - Austin-Moore Bipolar ..

A 65-year-old female had cemented bipolar hemi hip replacement after fixation failure of a dynamic hip screw. She had left lower limb weakness for ten years after previous spinal surgery. At the sixth week of postoperation, the patient had dissociation of the components of the bipolar hemiarthroplasty at the femoral head and neck junction. The patient had open reduction and femoral head revision. There was no re-dislocation at one-year follow-up.

Austin-Moore bipolar hemiarthroplasty, left hip ..

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Partial Hip Replacement with or without Bipolar Prosthesis

Hemiarthroplasty (unipolar or bipolar) of the hip is a commonly performed procedure in elderly patients with intracapsular displaced fractures of the neck of femur with good short-term results with regard to pain relief, return to activity, morbidity and mortality [1,2,3]. An improperly implanted bipolar prosthesis creates more problems with one of the options being a Girdlestone arthroplasty. Though good relief is achievable in some cases from Girdle stone arthroplasty, in most cases the results are not satisfactory [4,5,6]. With the following treatment option we report this case of re implantation with total hip arthroplasty in Girdlestone hip.

© Borgis - Postpy Nauk Medycznych 6/2013, s. 406-409

Bipolar hemiarthroplasty is one of the treatment options for unstable femoral neck fracture in the elderly . Hip dislocation after hip replacement is a common complication but dissociation of a bipolar prosthesis is rare. There are some reports of bipolar hemiarthroplasty dissociation at the inner head and outer shell . However, there are limited reports on acute spontaneous dissociation of head and neck at the taper junction in bipolar hemiarthroplasty. A previous case reported inner femoral head disassembly from the stem-neck taper junction which occurred after revision of the head of a bipolar hip prosthesis . The present study reports an acute disassembly of a primary bipolar hemiarthroplasty at the femoral head and stem-neck taper junction in a patient with nerve palsy. This case report is rare and will be beneficial for surgeons who perform hip arthroplasty in a patient with limb shortening and weakness. Written informed consent was obtained from the patient for publication of this case report.

Hip Fracture: Diagnosis and Treatment

Girdlestone hip arthroplasty, though described as a salvage procedure for infected hip joints, can also be considered for failed Hemiarthroplasty procedures. The functional results of such Girdlestone hip may not be satisfactory. They may require total hip replacement to improve the quality of life, which are technically challenging. Here we are reporting such a case in a 60 year old male patient, with review of literature.
A 60 year old male patient underwent cemented bipolar hemiarthroplasty for fracture neck of femur which failed, owing to improper implantation. Subsequently he underwent Girdlestone arthroplasty which resulted in persistent painful hip. He presented to us in this situation, where we successfully converted the Girdlestone arthroplasty to a Total Hip arthroplasty.
Improper implantation in Hemiarthroplasty fails subsequently. In such cases Girdlestone arthroplasty may be an option to consider, though it may not give requisite relief to patient in some cases. In such situations total hip arthroplasty procedure, though technically challenging will give stable painless hip to the patient.
Hemiarthroplasty; Girdlestone arthroplasty; Totalhip arthropalsty.