Observational studyActa orthopaedica2014
Good stability but high periprosthetic bone mineral loss and late-occurring periprosthetic fractures with use of uncemented tapered femoral stems in patients with a femoral neck fracture.
Observational study in Acta orthopaedica, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 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.
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Who cites it
14 citing papers in PubMed, 28 citations in OpenAlex.
- Effect of switching administration of alendronate after teriparatide for the prevention of BMD loss around the implant after total hip arthroplasty, 2-year follow-up: a randomized controlled trial.Journal of orthopaedic surgery and research · 2020Trial
- Less periprosthetic bone loss following the anterolateral approach to the hip compared with the direct lateral approach.Acta orthopaedica · 2018Trial
- More complications with uncemented than cemented femoral stems in total hip replacement for displaced femoral neck fractures in the elderly.Acta orthopaedica · 2017Trial
- No effect of risedronate on femoral periprosthetic bone loss following total hip arthroplasty. A 4-year follow-up of 61 patients in a double-blind, randomized placebo-controlled trial.Acta orthopaedica · 2015Trial
- Collared Femoral Stems Have Lower Risk of Postoperative PPFs After THA: A Retrospective Cohort Study.Indian journal of orthopaedics · 2026Article
- Impact of bone quality on surgical decision-making in total hip arthroplasty: a qualitative analysis in the UK.BMJ open · 2025Article
- Canal Fill Ratio in Hemiarthroplasty Compared to Total Hip Arthroplasty: A Case Control Study.The Iowa orthopaedic journal · 2024Article
- Radiographic Evaluation and Changes in Bone Density of the Humeral Side after Reverse Total Shoulder Arthroplasty.Journal of clinical medicine · 2023Article
- Association of Sex With Risk of 2-Year Revision Among Patients Undergoing Total Hip Arthroplasty.JAMA network open · 2021Article
- Low rates of all-cause revision in displaced subcapital femoral neck fractures treated with hip hemiarthroplasty - a retrospective review of 4516 patients from a single institute.BMC musculoskeletal disorders · 2020Article
- Bone Loss Following Cementless Hemiarthroplasty for the Treatment of Femoral Neck Fracture.Indian journal of orthopaedics · 2020Article
- Fixation, sex, and age: highest risk of revision for uncemented stems in elderly women - data from 66,995 primary total hip arthroplasties in the Norwegian Arthroplasty Register.Acta orthopaedica · 2020Article
- Uncemented total hip arthroplasty in octogenarian and nonagenarian patients.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019Article
- Analysis of migration of the Nanos® short-stem hip implant within two years after surgery.International orthopaedics · 2016Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeWe previously evaluated a new uncemented femoral stem designed for elderly patients with a femoral neck fracture and found stable implant fixation and good clinical results up to 2 years postoperatively, despite substantial periprosthetic bone mineral loss. We now present the medium-term follow-up results from this study. PATIENTS AND
methodsIn this observational prospective cohort study, we included 50 patients (mean age 81 (70-92) years) with a femoral neck fracture. All patients underwent surgery with a cemented cup and an uncemented stem specifically designed for fracture treatment. Outcome variables were migration of the stem measured with radiostereometry (RSA) and periprosthetic change in bone mineral density (BMD), measured with dual-energy X-ray absorptiometry (DXA). Hip function and health-related quality of life were assessed using the Harris hip score (HHS) and the EuroQol-5D (EQ-5D). DXA and RSA data were collected at regular intervals up to 4 years, and data concerning reoperations and hip-related complications were collected during a mean follow-up time of 5 (0.2-7.5) years.
resultsAt 5 years, 19 patients had either passed away or were unavailable for further participation and 31 could be followed up. Of the original 50 patients, 6 patients had suffered a periprosthetic fracture, all of them sustained after the 2-year follow-up. In 19 patients, we obtained complete RSA and DXA data and no component had migrated after the 2-year follow-up. We also found a continuous total periprosthetic bone loss amounting to a median of -19% (-39 to 2). No changes in HHS or EQ-5D were observed during the follow-up period.
interpretationIn this medium-term follow-up, the stem remained firmly fixed in bone despite considerable periprosthetic bone mineral loss. However, this bone loss might explain the high number of late-occurring periprosthetic fractures. Based on these results, we would not recommend uncemented femoral stems for the treatment of femoral neck fractures in the elderly.
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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.