19 years outcome after cementless total hip arthroplasty with spongy metal structured implants in patients younger than 65 years

Publication

19 years outcome after cementless total hip arthroplasty with spongy metal structured implants in patients younger than 65 years

Journal Paper/Review - Oct 18, 2016

Gerdesmeyer Ludger, Al Muderis Munjed, Gollwitzer Hans, Harrasser Norbert, Stukenberg Martin, Clifford Maria-Angela, Toepfer Andreas

Citation

Gerdesmeyer L, Al Muderis M, Gollwitzer H, Harrasser N, Stukenberg M, Clifford M, Toepfer A. 19 years outcome after cementless total hip arthroplasty with spongy metal structured implants in patients younger than 65 years. BMC Musculoskelet Disord 2016; 17:429.

Type

Journal Paper/Review (English)

Journal

BMC Musculoskelet Disord 2016; 17

Publication Date

Oct 18, 2016

Issn Electronic

1471-2474

Pages

429

Brief description/objective

BACKGROUND
Cementless fixation of total hip arthroplasties (THAs) is often favored in young, high-demanding patients due to the conservation of valuable bone-stock and easier revision if loosening has occurred. Long-term outcome data of the spongy metal structured implant used in the present study in patients younger than 65 years are still lacking.

METHODS
We conducted a retrospective chart review and functional investigation (Merle d'Aubigné score, SF-12) of patients younger than 65 years at implantation treated with a spongy metal structured THA (n = 79) from one orthopedic university center from 1985 to 1989.

RESULTS
At a 19-year mean follow-up (range: 15.3 - 21.3 years), the overall stem survival rate was 93.7 %, and the overall cup survival rate was 82.3 %. Revision surgeries of the stem were performed in all cases for aseptic loosening at an average of 15.3 ± 3.5 years after implantation. Acetabular components were revised for aseptic loosening and recurrent dislocation after inlay revision on an average of 11.8 ± 4.7 years after implantation. No other device related complications occurred within the 19-year follow-up period. No correlation was found between time of revision and gender or age. Clinical outcome scores (Merle d'Aubigné score, SF-12) revealed excellent to good results of the implanted THAs in 87 % of patients.

CONCLUSIONS
We conclude that spongy metal structured cementless THAs implanted in young patients have an excellent survival and provide trustworthy clinical results at 19 years of follow-up.