Porous metal augments combined with cemented or uncemented cups in revision hip arthroplasty yielded comparable excellent radiographic and clinical midterm outcomes, according to results.
Researchers compared the clinical and radiological outcomes of 104 cemented and 43 uncemented acetabular revisions with metal augments, which were used when preoperative and intraoperative findings indicated the presence of large acetabular defects that can hinder the stability of the revision implants.
Results showed aseptic cup and augment loosening occurred in five hips at a mean follow-up of 60.1 months, of which 2.8% were cemented and 4.6% were uncemented. Overall, 2.7% of these were re-revised. When considering cup and augment revision for all diagnoses as an endpoint, researchers found a 5-year survival of 95.1% for the cemented group and 97.6% for the uncemented group.
Researchers noted substantial improvement in the EuroQol-5D for generic health and the hip disability and osteoarthritis outcome score at final follow-up, without any significant differences between fixation techniques. Postoperative radiographs showed the cup inclination angles and position and restoration of the center of rotation were adequately corrected, with a mean vertical center of rotation of 13.2 mm in the cemented group and of 16 mm in the uncemented group. – by Casey Tingle
Disclosures: Mahmoud reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.