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

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• 作者：Karthig Rajakulendran ; MSc ; MRCS^a ; ^b ; ; Francesco Strambi ; MD^b ; Riccardo Ruggeri ; MD^c ; Richard E. Field ; PhD ; FRCS ; FRCS (Orth)^b ; ^d
• 关键词：total hip arthroplasty ; total hip prosthesis ; cannulated femoral stem ; tri-tapered femoral stem ; femoral stem survivorship
• 刊名：The Journal of Arthroplasty
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：30
• 期：10
• 页码：1772-1776
• 全文大小：463 K

文摘

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.