Trial reportJournal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology2015
A prospective randomized radiographic and dual-energy X-ray absorptiometric study of migration and bone remodeling after implantation of two modern short-stemmed femoral prostheses.
Trial report in Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.
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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.
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Periprosthetic bone remodelling of short-stem total hip arthroplasty: a systematic review.International orthopaedics · 2018Pooled it
- Pooled it
- Leg length and offset in short-stem total hip arthroplasty: is a single offset-implant sufficient to restore the hip rotation centre within a range of 5 mm?Archives of orthopaedic and trauma surgery · 2026Article
- Predicting Proximal Femoral Remodeling After Short-Stem Hip Arthroplasty: A Biomechanical Modeling Approach.Journal of clinical medicine · 2025Article
- Variations in bone mineral density after joint replacement: A systematic review examining different anatomical regions, fixation techniques and implant design.Journal of experimental orthopaedics · 2025Review
- Bone mineral density in osseointegration implant surgery: A review of current studies (Review).Biomedical reports · 2024Review
- 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 analysis of a cementless short stem THA using EBRA-FCA - A seven-year prospective multicentre study.Journal of orthopaedics · 2023Article
- Bionic reconstruction of tension trabeculae in short-stem hip arthroplasty: a finite element analysis.BMC musculoskeletal disorders · 2023Article
- Three-year migration analysis of a new metaphyseal anchoring short femoral stem in THA using EBRA-FCA.Scientific reports · 2022Article
- Comparison of Femoral Bone Mineral Density Changes around 3 Common Designs of Cementless Stems after Total Hip Arthroplasty-A Retrospective Cohort Study.Orthopaedic surgery · 2022Article
- Future of total hip arthroplasty with the Metha short stem in modern surgeries.Scientific reports · 2021Article
- Short-term success of proximal bone stock preservation in short hip stems: a systematic review of the literature.EFORT open reviews · 2021Review
- Mid-term subsidence and periprosthetic radiolucency of the AMIStem: a 5-year EBRA-FCA analysis.Journal of orthopaedic surgery and research · 2021Article
- Femoral bone remodeling after short-stem total hip arthroplasty: a prospective densitometric study.International orthopaedics · 2020Observational
- Comparison of Clinical Outcomes, Radiological Outcomes and Bone Remodeling Outcomes Between Proximal Coated Single-Wedge New Stem and Full Coated Dual-Wedge Classic Stem in 1-Stage Bilateral Total Hip Arthroplasty.Medical science monitor : international medical journal of experimental and clinical research · 2020Article
- Is there a significant decrease in the femoral cortical bone around FurlongEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2020Article
- Migration analysis of a metaphyseal-anchored short femoral stem in cementless THA and factors affecting the stem subsidence.BMC musculoskeletal disorders · 2019Article
- 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
- Development of periprosthetic bone mass density around the cementless Metha® short hip stem during three year follow up-a prospective radiological and clinical study.International orthopaedics · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe aim of this prospective randomized study was to analyze migration and strain transmission of the Metha™ and Nanos™ femoral prostheses. MATERIALS AND
methodsBetween 1 January 2011 and 2 April 2013, 50 patients were randomized to receive short-stemmed femoral prostheses. Metha™ stems were implanted in 24 patients (12 female, 12 male; mean age 58.7 years; mean body mass index [BMI] 27.4) and Nanos™ stems in 26 patients (10 female, 16 male; mean age 59.7 years; mean BMI 27.1). Longitudinal stem migration, varus-valgus alignment, changes of center of rotation (COR), femoral offset and caput-collum-diaphyseal angle, leg length discrepancy, periprosthetic radiolucent lines incidence, and dual-energy X-ray absorptiometry (DEXA) scans were analysed after an average of 98 and 381 days.
resultsThere was no significant change of varus-valgus alignment or clinically relevant migration of the Metha™ or Nanos™ prostheses during postoperative follow-up. After 12.3 months, the DEXA scans showed small but significant differences of bone mineral density in Gruen zones 1 (minus ~8 %) and 6 (plus ~9 %) for the Metha™ and in Gruen zone 1 (minus ~14 %) for the Nanos™ (paired t test). Visual analog scale (VAS) and Harris Hip Score (HHS) improved significantly for both implants (Nanos™/Metha™ 12.3 months postoperatively HSS 96.5/96.2; VAS 0.7/0.8, respectively). COR or offset did not change significantly after surgery.
conclusionsNeither implant showed signs of impaired osseointegration. DEXA demonstrated proximally located load transfer with only moderate proximal stress shielding. LEVEL OF EVIDENCE: II.
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