A Cannulated Tri-Tapered Femoral Stem for Total Hip Arthroplasty: Clinical and Radiological Results at Ten Years

作者：Rajakulendran Karthig^*; Strambi Francesco; Ruggeri Riccardo; Field Richard E

来源：Journal of Arthroplasty, 2015, 30(10): 1772-1776.

DOI：10.1016/j.arth.2015.04.023

• total hip arthroplasty
• total hip prosthesis
• cannulated femoral stem
• tri-tapered femoral stem
• femoral stem survivorship

We report the ten-year clinical and radiological outcomes of a novel cannulated, tri-tapered femoral stem, used in primary total hip arthroplasty (110 stems in 98 patients). At ten years, two Tri-taper stems had been revised for infection and dislocation. The mean Oxford Hip Score improved from 13.46 pre-operatively, to 37.04. Radiological analysis revealed radiolucent lines in 57 cases, but none exceeded 2 mm thickness. Stem subsidence was identified in 63 cases, with mean distal tip migration of 3.8 mm. Survivorship with revision for aseptic loosening as the end point was 100% at 10 years. Stem survival with revision for any cause was 98.2% (95% CI, 92.9% to 99.5%). The ten-year results of the Tri-taper stem are comparable to other polished, tapered femoral stems.

• 出版日期2015-10