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J Arthroplasty. 2013 Oct;28(9):1667-70. doi: 10.1016/j.arth.2013.03.010. Epub 2013 Apr 22.

Nineteen year results of THA using modular 9 mm S-ROM femoral component in patients with small femoral canals.

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  • 1Holland Orthopaedic and Arthritic Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.


A retrospective analysis was undertaken of 30 consecutive THA performed in 25 patients with hypoplastic proximal femurs, who had received a 9-mm uncemented modular S-ROM stem. The mean patient age was 42 years (17-69 years), mean height was 152.5 cm (130-170.5 cm), mean weight was 63 kg (39-90 kg), and mean follow-up period was 19 years (range, 12-23 years). Subsidence was seen in 2 hips, with asymptomatic femoral osteolysis present in 11 hips; overall survival of the femoral stem was 93.3%, with two revisions of the femoral component required for aseptic loosening. After a mean follow-up of 19 years, the use of the S-ROM 9 mm femoral stem in the patient with the small femur was associated with a low revision rate due to aseptic loosening of the stem.

Crown Copyright © 2013. Published by Elsevier Inc. All rights reserved.


S-ROM; small femur; total hip

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