Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty

Purpose: Modular fluted tapered stems are one of the most commonly used implants in femoral revision surgery. Due to the relative lack of studies on the Restoration modular fluted tapered stem, we conducted a study to evaluate its short- to mid-term clinical, radiographic, and survival outcomes. Met...

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Main Authors: Celso Hermínio Ferraz Picado, Aniello Savarese, Vitor dos Santos Cardamoni, Arthur Tomotaka Sugo, Flávio Luís Garcia
Format: Article
Language:English
Published: SAGE Publishing 2019-12-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/2309499019891638
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author Celso Hermínio Ferraz Picado
Aniello Savarese
Vitor dos Santos Cardamoni
Arthur Tomotaka Sugo
Flávio Luís Garcia
author_facet Celso Hermínio Ferraz Picado
Aniello Savarese
Vitor dos Santos Cardamoni
Arthur Tomotaka Sugo
Flávio Luís Garcia
author_sort Celso Hermínio Ferraz Picado
collection DOAJ
description Purpose: Modular fluted tapered stems are one of the most commonly used implants in femoral revision surgery. Due to the relative lack of studies on the Restoration modular fluted tapered stem, we conducted a study to evaluate its short- to mid-term clinical, radiographic, and survival outcomes. Methods: We identified all 45 patients treated with this revision stem at our institution. Five patients did not complete the minimum 2-year follow-up, leaving 40 patients (41 hips) for assessment. Mean follow-up was 5.1 years (range 2–11 years). Clinical outcomes were assessed using the Harris hip score (HHS). Radiographs were evaluated for subsidence and loosening. Kaplan–Meier survival analysis was performed using revision of the stem for any reason as end point. Results: The mean HHS improved from 44.6 points preoperatively to 78.4 points at the most recent follow-up ( p < 0.0001). Nonprogressive subsidence occurred in 83% of the hips (mean 2.8 mm; range 1–7 mm). One stem (2.4%) showed progressive subsidence (20 mm) and was considered loose. The most common cause for reoperation was dislocation (three hips, 7.3%). The 10-year survivorship with revision of the stem for any reason as the end point was 93.5% (95% CI, 84.9–100%). Conclusion: There was a significant improvement in the HHS and a low likelihood of revision at short- to mid-term follow-up, adding to the current evidence base for use of this implant in revision surgery. A longer follow-up and a larger number of cases are necessary to fully evaluate its role and performance.
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spelling doaj.art-6df66c7a75124a60a7bf64d0bc3e13a62022-12-22T01:13:52ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902019-12-012810.1177/2309499019891638Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplastyCelso Hermínio Ferraz PicadoAniello SavareseVitor dos Santos CardamoniArthur Tomotaka SugoFlávio Luís GarciaPurpose: Modular fluted tapered stems are one of the most commonly used implants in femoral revision surgery. Due to the relative lack of studies on the Restoration modular fluted tapered stem, we conducted a study to evaluate its short- to mid-term clinical, radiographic, and survival outcomes. Methods: We identified all 45 patients treated with this revision stem at our institution. Five patients did not complete the minimum 2-year follow-up, leaving 40 patients (41 hips) for assessment. Mean follow-up was 5.1 years (range 2–11 years). Clinical outcomes were assessed using the Harris hip score (HHS). Radiographs were evaluated for subsidence and loosening. Kaplan–Meier survival analysis was performed using revision of the stem for any reason as end point. Results: The mean HHS improved from 44.6 points preoperatively to 78.4 points at the most recent follow-up ( p < 0.0001). Nonprogressive subsidence occurred in 83% of the hips (mean 2.8 mm; range 1–7 mm). One stem (2.4%) showed progressive subsidence (20 mm) and was considered loose. The most common cause for reoperation was dislocation (three hips, 7.3%). The 10-year survivorship with revision of the stem for any reason as the end point was 93.5% (95% CI, 84.9–100%). Conclusion: There was a significant improvement in the HHS and a low likelihood of revision at short- to mid-term follow-up, adding to the current evidence base for use of this implant in revision surgery. A longer follow-up and a larger number of cases are necessary to fully evaluate its role and performance.https://doi.org/10.1177/2309499019891638
spellingShingle Celso Hermínio Ferraz Picado
Aniello Savarese
Vitor dos Santos Cardamoni
Arthur Tomotaka Sugo
Flávio Luís Garcia
Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
Journal of Orthopaedic Surgery
title Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
title_full Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
title_fullStr Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
title_full_unstemmed Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
title_short Clinical, radiographic, and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
title_sort clinical radiographic and survivorship analysis of a modular fluted tapered stem in revision hip arthroplasty
url https://doi.org/10.1177/2309499019891638
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