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Notching of the Neck After Acetabular Constraint Necessitating Femoral Component Revision.
Notching of the Neck After Acetabular Constraint Necessitating Femoral Component Revision. Arthroplasty today Bonano, J. C., Bala, A., Chen, F., Amanatullah, D. F., Goodman, S. B. 2021; 12: 32-35Abstract
A 75-year-old woman who had previously undergone a left revision total hip arthroplasty with the use of a constrained acetabular liner presented with recurrent dislocation of the hip. Intraoperatively, there was metallic staining of the hip capsule and significant notching of the femoral neck, consistent with impingement of the intact locking ring, necessitating stem revision. Constrained acetabular liners have high failure rates due to intraprosthetic impingement, but to our knowledge, failure due to notching of the femoral component and metallosis from repeated impingement has not been described. Surgeons should be aware of this potential mode of failure.
View details for DOI 10.1016/j.artd.2021.09.007
View details for PubMedID 34761091