ArticleInternational orthopaedics2016
Analysis of migration of the Nanos® short-stem hip implant within two years after surgery.
Article in International orthopaedics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.
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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
21 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Periprosthetic bone remodelling of short-stem total hip arthroplasty: a systematic review.International orthopaedics · 2018Pooled it
- Very early migration of a calcar-guided short stem: a randomized study of early mobilization and the influence of a calcium phosphate coating with 60 patients.Scientific reports · 2024Trial
- Similar outcome with a new anteverted or a straight standard stem: a randomized study of 72 total hip arthroplasties evaluated with clinical variables, radiostereometry, and DXA up to 2 years.Acta orthopaedica · 2022Trial
- 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
- Randomised clinical trial assessing migration of uncemented primary total hip replacement stems, with and without autologous impaction bone grafting.International orthopaedics · 2019Trial
- The Influence of Tribological Pairings and Other Factors on Migration Patterns of Short Stems in Total Hip Arthroplasty.BioMed research international · 2017Trial
- Cementless calcar-guided short stems: 24-month clinical outcomes and migration analysis.Scientific reports · 2026Article
- Finite element analysis of stem migration after total hip replacement.Biomechanics and modeling in mechanobiology · 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
- Insufficient lateral stem contact is an influencing factor for significant subsidence in cementless short stem total hip arthroplasty.World journal of orthopedics · 2022Article
- Clinical and radiographic outcomes after total hip arthroplasty with the NANOS neck preserving hip stem: a 10 to 16-year follow-up study.BMC musculoskeletal disorders · 2022Article
- Complex Primary Total Hip Arthroplasty: Small Stems for Big Challenges.Arthroplasty today · 2021Article
- [Early assessment of the risk of later implantloosening using Roentgen Sterophotogrammetric Analysis (RSA)].Der Orthopade · 2020Review
- Primary stability of calcar-guided short-stem total hip arthroplasty in the treatment of osteonecrosis of the femoral head: migration analysis using EBRA-FCA.Archives of orthopaedic and trauma surgery · 2020Article
- Comparison of short-stem with conventional-stem prostheses in total hip arthroplasty: an 8-year follow-up study.Archives of orthopaedic and trauma surgery · 2020Article
- Mid-term results of a new-generation calcar-guided short stem in THA: clinical and radiological 5-year follow-up of 216 cases.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2019Article
- Femoral neck preservation with a short hip stem produced with powder manufacturing: mid-term results of a consecutive case series.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019Article
- Model-based roentgen stereophotogrammetric analysis using elementary geometrical shape models: 10 years results of an uncemented acetabular cup component.BMC musculoskeletal disorders · 2018Article
- Uncemented short stems in primary total hip arthroplasty: The state of the art.EFORT open reviews · 2018Article
- Can the metaphyseal anchored Metha short stem safely be revised with a standard CLS stem? A biomechanical analysis.International orthopaedics · 2017Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeShort-stem implants provide a bone-preserving alternative in total hip arthroplasty. However, some evidence exists that the smaller implant-bone contact surface may compromise primary stability and impair osseo-integration. The purpose of this study was to analyse the migration characteristics of the Nanos® short stem over two years by means of model-based roentgen stereophotogrammetric analysis (MBRSA).
methodsEighteen patients aged 53.6 ± 7.2 years were included. After being treated with a Nanos implant, 14 patients were followed-up radiologically at three, six, 12 and 24 months by means of MBRSA. Early implant migration was calculated. Clinical data have been assessed in addition.
resultsHighest translational migration was observed with a mean value of -0.22 ± 0.39 mm along the proximo-distal axis after three months and highest rotational migration with 0.8 ± 3.2° also around the y-axis after two years. The resulting total migration was 0.46 ± 0.31 mm, with the largest proportion occurring within three months after surgery (0.40 ± 0.34 mm).
conclusionThe Nanos short-stem hip implant shows only a slight initial migration within three months after implantation, followed by secondary stabilisation. These results suggest both good primary stability and osseo-integration, suggesting a low risk of aseptic loosening.
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