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Case Reports
. 2015 Jul 15:2015:bcr2015210282.
doi: 10.1136/bcr-2015-210282.

Dislocation and dissociation of bipolar hip hemiarthroplasty

Andrew Moriarity  1 , Prasad Ellanti  2 , Samir Talha  1 , John McKenna  1
Affiliations
Case Reports

Dislocation and dissociation of bipolar hip hemiarthroplasty

Andrew Moriarity et al. BMJ Case Rep. .

Abstract

Hemiarthroplasty of the hip is a commonly performed procedure for subcapital neck of femur fractures. Dislocation of the hemiarthroplasty is a recognised but uncommon complication. Dislocations can be complicated by the uncoupling or dissociation of the femoral head component from the femoral stem. Dissociations are rare and require open reduction. We present a case of a patient with a hip hemiarthroplasty dislocation and dissociation subsequent to a fall.

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Figures

Figure 1
Figure 1
Anteroposterior radiograph of the right hip demonstrating a satisfactory hip hemiarthroplasty subsequent to a subcapital neck of femur fracture.
Figure 2
Figure 2
Anteroposterior radiograph of the right hip demonstrating a dislocation of right hip hemiarthroplasty. The femoral head component and the stem do not appear concentric (dotted circles) raising suspicion for a dissociation of the implants.
Figure 3
Figure 3
A fluoroscopic pre operative image demonstrating uncoupling or dissociation of the hemiarthroplasty implants.
Figure 4
Figure 4
Postoperative radiograph demonstrating the revision hip hemiarthroplasty.
See this image and copyright information in PMC

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References

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