Trial reportActa orthopaedica2015
Lower periprosthetic bone loss and good fixation of an ultra-short stem compared to a conventional stem in uncemented total hip arthroplasty.
Trial report in Acta orthopaedica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 6 of them syntheses that pooled it.
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
45 citing papers in PubMed, 6 syntheses or guidelines pooled it, 86 citations in OpenAlex.
- A comparative meta-analysis of stress shielding between short-stem and conventional femoral stem in total hip arthroplasty.BMC musculoskeletal disorders · 2026Pooled it
- Do Cementless Short Tapered Stems Reduce the Incidence of Thigh Pain After Hip Arthroplasty? Systematic Review and Meta-Analysis.Journal of Korean medical science · 2022Pooled it
- Pooled it
- Periprosthetic bone remodelling of short-stem total hip arthroplasty: a systematic review.International orthopaedics · 2018Pooled it
- Pooled it
- Short-stem prostheses in primary total hip arthroplasty: A meta-analysis of randomized controlled trials.Medicine · 2016Pooled it
- Preservation of periprosthetic bone with a collum-fixated short stem versus conventional metaphyseal-fixated stems in total hip arthroplasty: a randomized controlled trial with 2-year follow-up in 61 patients.Acta orthopaedica · 2026Trial
- Periprosthetic bone mineral density, assessed using dual energy x-ray absorptiometry, following arthroplasty in patients with femoral neck fracture: 5-year outcomes of a randomized controlled trial.The Journal of international medical research · 2024Trial
- Comparative Analysis between Short Stem and Conventional Femoral Stem in Patients with Osteonecrosis of Femoral Head: Metha Stem and Excia Stem.Orthopaedic surgery · 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
- 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
- Less periprosthetic bone loss following the anterolateral approach to the hip compared with the direct lateral approach.Acta orthopaedica · 2018Trial
- Preoperative factors associated with alignment change from planned metaphyseal- to diaphyseal-dominant fixation in calcar-guided short-stem total hip arthroplasty.International orthopaedics · 2026Article
- Article
- SPAIRE approach shows equivalent changes in bone mineral density as a conventional approach in femoral neck fracture patients : a sub-group analysis of 49 patients from a randomized controlled trial.Bone & joint open · 2025Article
- Midterm Comparative Analysis of Short Femoral Stem Survivorship in Dorr Type A Femurs.Clinics in orthopedic surgery · 2024Article
- Stable fixation of an ultra-short femoral neck-preserving hip prosthesis: a 5-year RSA, DXA, and clinical prospective outcome study of 48 patients.Acta orthopaedica · 2024Article
- Subsidence after calcar-guided short stem total hip arthroplasty: five-year results of a prospective multicentre study.International orthopaedics · 2024Article
- Migration Characteristics of a Proximally Coated Collarless Femoral Stem: A Prospective 2-Year Radiostereometric Analysis Study.Arthroplasty today · 2023Article
- Femoral Anteversion in Total Hip Arthroplasty: Retrospective Comparison of Short- and Straight-Stem Models Using CT Scans.Journal of clinical medicine · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeWe hypothesized that an ultra-short stem would load the proximal femur in a more physiological way and could therefore reduce the adaptive periprosthetic bone loss known as stress shielding. PATIENTS AND
methods51 patients with primary hip osteoarthritis were randomized to total hip arthroplasty (THA) with either an ultra-short stem or a conventional tapered stem. The primary endpoint was change in periprosthetic bone mineral density (BMD), measured with dual-energy x-ray absorptiometry (DXA), in Gruen zones 1 and 7, two years after surgery. Secondary endpoints were change in periprosthetic BMD in the entire periprosthetic region, i.e. Gruen zones 1 through 7, stem migration measured with radiostereometric analysis (RSA), and function measured with self-administered functional scores.
resultsThe periprosthetic decrease in BMD was statistically significantly lower with the ultra-short stem. In Gruen zone 1, the mean difference was 18% (95% CI: -27% to -10%). In zone 7, the difference was 5% (CI: -12% to -3%) and for Gruen zones 1-7 the difference was also 5% (CI: -9% to -2%). During the first 6 weeks postoperatively, the ultra-short stems migrated 0.77 mm more on average than the conventional stems. 3 months after surgery, no further migration was seen. The functional scores improved during the study and were similar in the 2 groups.
interpretationUp to 2 years after total hip arthroplasty, compared to the conventional tapered stem the ultra-short uncemented anatomical stem induced lower periprosthetic bone loss and had equally excellent stem fixation and clinical outcome.
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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.