Trial reportActa orthopaedica2014
Design modifications of the uncemented Furlong hip stem result in minor early subsidence but do not affect further stability: a randomized controlled RSA study with 5-year follow-up.
Trial report in Acta orthopaedica, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed.
- Comparison of 5-year cup and stem migration between ceramic-on-ceramic and ceramic-on-polyethylene bearing in press-fit total hip arthroplasty: a randomised controlled trial using radiostereometric analysis.Hip international : the journal of clinical and experimental research on hip pathology and therapy · 2024Trial
- Migration of the uncemented Echo Bi-Metric and Bi-Metric THA stems: a randomized controlled RSA study involving 62 patients with 24-month follow-up.Acta orthopaedica · 2020Trial
- Greater early migration of a short-stem total hip arthroplasty is not associated with an increased risk of osseointegration failure: 5th-year results from a prospective RSA study with 39 patients, a follow-up study.Acta orthopaedica · 2020Trial
- Early stabilization of the uncemented Symax hip stem in a 2-year RSA study.Acta orthopaedica · 2020Trial
- Is Model-based Radiostereometric Analysis Suitable for Clinical Trials of a Cementless Tapered Wedge Femoral Stem?Clinical orthopaedics and related research · 2016Trial
- Ceramic-on-ceramicJournal of clinical orthopaedics and trauma · 2024Article
- Radiological Comparison of Canal Fill between Collared and Non-Collared Femoral Stems: A Two-Year Follow-Up after Total Hip Arthroplasty.Journal of imaging · 2024Article
- Early Radiographic Fit and Fill Analysis of a New Metaphyseal-Filling Triple Taper Stem Designed Using a Large Computed Tomography Scan Database.Arthroplasty today · 2023Article
- Preserved periprosthetic bone stock at 5 years post-operatively with uncemented short hip stem in both collared and collarless version.Archives of orthopaedic and trauma surgery · 2022Article
- Hip prosthetic loosening and periprosthetic osteolysis: A commentary.World journal of orthopedics · 2022Review
- Preoperative BMD does not influence femoral stem subsidence of uncemented THA when the femoral T-score is > -2.5.Acta orthopaedica · 2021Article
- Highly cross-linked polyethylene still outperforms conventional polyethylene in THA: 10-year RSA results.Acta orthopaedica · 2021Article
- Hip prosthetic loosening: A very personal review.World journal of orthopedics · 2021Review
- The anatomical SP-CL stem demonstrates a non-progressing migration pattern in the first year: a low dose CT-based migration study in 20 patients.Acta orthopaedica · 2020Article
- Good stability of a cementless, anatomically designed femoral stem in aging women: a 9-year RSA study of 32 patients.Acta orthopaedica · 2018Article
- Proximal femoral anatomy and collared stems in hip arthroplasty: is a single collar size sufficient?Journal of experimental orthopaedics · 2017Article
- Early Migration Predicts Aseptic Loosening of Cementless Femoral Stems: A Long-term Study.Clinical orthopaedics and related research · 2016Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeEven small design modifications of uncemented hip stems may alter the postoperative 3-D migration pattern. The Furlong Active is an uncemented femoral stem which, in terms of design, is based on its precursor-the well-proven Furlong HAC-but has undergone several design changes. The collar has been removed on the Active stem along with the lateral fin; it is shorter and has more rounded edges in the proximal part. We compared the migration patterns of the uncemented Furlong HAC stem and the modified Furlong Active stem in a randomized, controlled trial over 5 years using radiostereometry (RSA). PATIENTS AND
methods50 patients with primary osteoarthritis were randomized to receive either the HAC stem or the Active stem. The patients underwent repeated RSA examinations (postoperatively, at 3 months, and after 1, 2, and 5 years) and conventional radiography, and they also filled out hip-specific questionnaires.
resultsDuring the first 3 months, the collarless Active stem subsided to a greater extent than the collar-fitted HAC stem (0.99 mm vs. 0.31 mm, p=0.05). There were, however, no other differences in movement measured by RSA or in clinical outcome between the 2 stems. After 3 months, both stem types had stabilized and almost no further migration was seen.
interpretationThe Active stem showed no signs of unfavorable migration. Our results suggest that the osseointegration is not compromised by the new design features.
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