Acetabular Revision Using Trabecular Metal Augments for Paprosky Type 3 Defects

作者：O'Neill Cathleen J; Creedon Stephen B; Brennan Stephen A^*; O'Mahony Fiona J; Lynham Rosanne S; Guerin Shane; Gul Rehan; Harty James A

来源：Journal of Arthroplasty, 2018, 33(3): 823-828.

DOI：10.1016/j.arth.2017.10.031

• trabecular
• metal
• augments
• revision
• hip
• arthroplasty

Background: Trabecular Metal (TM) augments are one option when reconstructing bone loss during acetabular side revision surgery.
Methods: We studied 38 consecutive patients with Paprosky type 3 defects that were revised using a TM shell and one or more augments over a 6-year period. There were 29 Paprosky type 3A defects and 9 Paprosky type 3B defects. The mean age of the patients at the time of surgery was 68.2 years (range 4884). The mean length of follow-up was 36 months (range 18-74).
Results: The mean preoperative short form 12 health survey improved from 27.7 before operation to 30.1 at the time of final follow-up (P = .001). The mean Western Ontario and McMaster Universities Osteoarthritis Index score improved from 53 preoperatively to a mean of 78.8 at final follow-up (P < .0001). There was evidence of radiographic loosening in 7 of the cup-augment constructs. One patient developed a deep infection requiring re-revision. Two patients required revision for aseptic loosening.
Conclusion: The use of TM in complex acetabular reconstruction is associated with good outcome in the short to medium term.

• 出版日期2018-3