ArticlePloS one2016
Comparative Analysis of the Biomechanical Behaviour of Two Cementless Short Stems for Hip Replacement: Linea Anatomic and Minihip.
Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 20 citations in OpenAlex.
- Stem length in primary cementless total hip arthroplasty: Does it make a difference in bone remodeling?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019Trial
- Medium-term outcome of the LibraBMC musculoskeletal disorders · 2023Article
- Patient-specific three-dimensional evaluation of interface micromotion in two different short stem designs in cementless total hip arthroplasty: a finite element analysis.Journal of orthopaedic surgery and research · 2022Article
- The experience of an indipendent center with the MINIHIP® femoral stem.Acta bio-medica : Atenei Parmensis · 2022Article
- Biomechanics of a cemented short stem: a comparative in vitro study regarding primary stability and maximum fracture load.Archives of orthopaedic and trauma surgery · 2021Article
- High prevalence and undertreatment of osteoporosis in elderly patients undergoing total hip arthroplasty.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2021Article
- Transcript-Activated Coatings on Titanium Mediate Cellular Osteogenesis for Enhanced Osteointegration.Molecular pharmaceutics · 2021Article
- Comparative analysis of the biomechanical behavior of two different design metaphyseal-fitting short stems using digital image correlation.Biomedical engineering online · 2020Article
- Migration analysis of a metaphyseal-anchored short femoral stem in cementless THA and factors affecting the stem subsidence.BMC musculoskeletal disorders · 2019Article
- Short stems have lower load at failure than double-wedged stems in a cadaveric cementless fracture model.Bone & joint research · 2019Article
- Anatomic grooved stem mitigates strain shielding compared to established total hip arthroplasty stem designs in finite-element models.Scientific reports · 2019Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A comparative study between two stems (Linea Anatomic and Minihip) has been performed in order to analyse the differences in their biomechanical behaviour, concerning stem micromotions and load transmission between stem and bone. From the corresponding finite element models, a parametric study was carried out to quantify ranges of micromotions taking into account: friction coefficient in the stem-bone interface, press-fit and two types of gait cycle. Micromotions were evaluated for each stem at six different levels along repeated gait cycles. An initial and marked stem subsidence at the beginning of the simulation was observed, followed by an asymptotic decrease due to friction forces. Once migration occurs, a repeated reversible cyclic micromotion is developed and stabilized as gait cycle times are simulated. The general motion pattern exhibited higher amplitude of micromotion for Minihip compared to Linea stem. The load transmission mechanism was analyzed, identifying the main internal forces. The results show higher local forces for Minihip stem up to 80% greater than for Linea stem. The differences of design between Minihip and Linea conditioned different distributions of load, influencing the posterior stress-shielding. Consequently, short stems require high bone stock and quality should, being indicated for young patients with high bone quality.
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