Mid-term clinical and radiographic outcomes of porous tantalum modular acetabular components for hip dysplasia.

Abstract

It is still challenging to perform successful cementless cup fixation during total hip arthroplasty for hip dysplasia. In this multicenter study we evaluated the clinical results of porous tantalum modular acetabular cups (TM cups) in 45 dysplastic hips with a mean follow-up period of 9.8 years. The mean Japanese Orthopaedic Association hip score improved from 48.2 preoperatively to 92.1 at the most recent follow-up. All of the cups were radiographically stable with no evidence of progressive radiolucencies or osteolysis regardless of bone grafting. Sixteen hips with bone grafts showed the integration of grafted bone without any radiolucencies. There were no revisions of TM cups. The use of TM cups for dysplastic hips provided satisfactory 10-year clinical and radiographic results.

• Authors: Tomomi Kamada, Naohiko Mashima, Yasuharu Nakashima, Hiroshi Imai, Jun Takeba, Hiromasa Miura
• Journal: The Journal of arthroplasty (J Arthroplasty) Vol. 30 Issue 4 Pg. 607-10 (Apr 2015) ISSN: 1532-8406 [Electronic] United States
• PMID: 25443360 (Publication Type: Journal Article)
• Copyright: Copyright © 2014 Elsevier Inc. All rights reserved.

Chemical References

• Tantalum

Topics

• Acetabulum (surgery)
• Adult
• Aged
• Arthroplasty, Replacement, Hip (methods)
• Bone Transplantation
• Female
• Follow-Up Studies
• Hip Dislocation (surgery)
• Hip Prosthesis
• Humans
• Japan
• Male
• Middle Aged
• Porosity
• Prosthesis Design
• Prosthesis Failure
• Tantalum