Trial reportInternational orthopaedics2011
Early migration characteristics of a hydroxyapatite-coated femoral stem: an RSA study.
Trial report in International orthopaedics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 61 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Link LCU + Lima Delta TT vs DePuy Corail + Pinnacle. A Comparative Study of Stem and Cup Fixation and Polyethylene Wear
Modern Surfaces of the Uncemented Cup in Total Hip Arthroplasty: A Randomized, Clinical Investigation Comparing Two Different Ultra-porous Coated Surfaces of Uncemented Cups Using CT-based Micromotion Analysis and Clinical Evaluation
Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.
- Adherence of hip and knee arthroplasty studies to RSA standardization guidelines. A systematic review.Acta orthopaedica · 2014Pooled it
- 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
- Improved radiographic outcomes and decreased complications rate on the femoral side can be achieved by a novel designed whole-process robotic assisted hip system for total hip arthroplasty: a prospective randomized controlled trial.Journal of robotic surgery · 2024Trial
- Acetabular cup fixation with and without screws following primary total hip arthroplasty: migration evaluated by radiostereometric analysis.Hip international : the journal of clinical and experimental research on hip pathology and therapy · 2024Trial
- 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
- Randomised clinical trial assessing migration of uncemented primary total hip replacement stems, with and without autologous impaction bone grafting.International orthopaedics · 2019Trial
- Similar clinical results and early subsidence between the Collum Femoris Preserving and the Corail stem: a randomized radiostereometric study of 77 hips with 2 years' follow-up.Acta orthopaedica · 2019Trial
- The loading patterns of a short femoral stem in total hip arthroplasty: gait analysis at increasing walking speeds and inclines.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2018Trial
- 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.Acta orthopaedica · 2014Trial
- Reverse hybrid and cemented hip replacement compared using radiostereometry and dual-energy X-ray absorptiometry: 43 hips followed for 2 years in a prospective trial.Acta orthopaedica · 2012Trial
- Twenty-year results of the cementless Corail stem.International orthopaedics · 2011Trial
- A prospective randomized study comparing electrochemically deposited hydroxyapatite and plasma-sprayed hydroxyapatite on titanium stems.Acta orthopaedica · 2011Trial
- Femoral stem migration after direct lateral and direct anterior total hip arthroplasty: a prospective cohort study.Canadian journal of surgery. Journal canadien de chirurgieTrial
- Propensity-matched comparison of early femoral complications after cementless total hip arthroplasty with different stem designs.Scientific reports · 2026Article
- Correlation of Subsidence with Proximal Femoral Anatomy in Hydroxyapatite-Coated vs Non-hydroxyapatite-coated Collarless Femoral Stems: Radiological Results at a Mean Follow-Up of 4.5 Years.Indian journal of orthopaedics · 2026Article
- Accuracy of digital templating for total hip arthroplasty: android smartphone and tablet computer versus commercial templating software.Arthroplasty (London, England) · 2025Article
- Femoral Stem Subsidence Rate with Cementless Stems in Patients with Sub-capital Femoral Neck Fractures: Relationship to Proximal Femoral Geometry.Journal of orthopaedic case reports · 2025Article
- Early migration patterns of calcium phosphate versus hydroxyapatite-coated stem in uncemented total hip arthroplasty: a prospective randomized clinical trial using radiostereometric analysis.Arthroplasty (London, England) · 2025Article
- Stem subsidence in total hip arthroplasty: retrospective investigation of a short stem using a simple measurement approach.Archives of orthopaedic and trauma surgery · 2024Article
1 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Measurement of early stem subsidence can be used to predict the likelihood of long-term femoral component loosening and clinical failure. Data that examines the early migration pattern of clinically proven stems will provide clinicians with useful baseline data with which to compare new stem designs. This study was performed to evaluate the early migration pattern of a hydroxyapatite-coated press-fit femoral component that has been in use for over ten years. We enrolled 30 patients who underwent THA for osteoarthritis. The median age was 70 years (range, 55-80 years). Patients were clinically assessed using the Harris hip score. Radiostereometric analysis was used to evaluate stem migration at three to four days, six months, one year and two years. We observed a mean subsidence of 0.73 mm at six months, 0.62 mm at one year and 0.58 mm at two years and a mean retroversion of 1.82° at six months, 1.90° at one year and 1.59° at two years. This data suggests that subsidence is confined to the first six months after which there was no further subsidence. The results from this study can be compared with those from novel cementless stem designs to help predict the long-term outcome one may expect from new cementless stem designs.
Indexed as
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.