ArticleBMC musculoskeletal disorders2021
The concept of a cementless isoelastic monoblock cup made of highly cross-linked polyethylene infused with vitamin E: radiological analyses of migration and wear using EBRA and clinical outcomes at mid-term follow-up.
Article in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04322916 (Clinical Study With the RM Pressfit Vitamys Cup in Combination With a Mathys Stem), which is not on this map. Cited by 7 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.
Clinical Study With the RM Pressfit Vitamys Cup in Combination With a Mathys Stem
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Risk factors for liner wear and head migration in total hip arthroplasty: a systematic review.Scientific reports · 2023Pooled it
- Long-term results of a vitamin E-blended polyethylene liner in total hip arthroplasty: a minimum ten year computer aided design based evaluation of wear and component positioning.International orthopaedics · 2026Article
- Bone-Sparing Hip Arthroplasty in Young and Active Patients: A Narrative Review.Journal of clinical medicine · 2026Review
- Outcomes of Iso-Elastic Acetabular Cup in Primary Total Hip Arthroplasty with 5-Year Minimum Follow-Up: A Systematic Review.Journal of clinical medicine · 2025Review
- A Comprehensive Literature Review of Total Hip Arthroplasty (THA): Part 1-Biomaterials.Journal of functional biomaterials · 2025Review
- An isoelastic monoblock cup versus a modular metal-back cup: a matched-pair analysis of clinical and radiological results using Einzel-Bild-Röntgen-Analyse software.Archives of orthopaedic and trauma surgery · 2024Article
- Subsidence analysis of a cementless short stem THA using EBRA-FCA - A seven-year prospective multicentre study.Journal of orthopaedics · 2023Article
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Authors and funding
7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe newest generation of cementless titanium-coated, isoelastic monoblock cup with vitamin E-blended highly cross-linked polyethylene (HXLPE) was introduced to the market in 2009. The aim of the present study was to obtain mid-term follow-up data including migration and wear analyses.
methodsThis prospective study investigated 101 primary total hip arthroplasty (THA) cases in 96 patients treated at a single institution. Patients were allowed full weight-bearing on the first day postoperatively. Harris hip score (HHS) and pain and satisfication on a visual analogue scale (VAS) were assessed at a mean follow-up of 79.0 months. Migration and wear were assessed using Einzel-Bild-Roentgen-Analyse (EBRA) software. Radiological acetabular bone alterations and complications were documented.
resultsAt mid-term follow-up (mean 79.0 months, range: 51.8-101.7), 81 cases with complete clinical and radiological data were analyzed. Utilisable EBRA measurements were obtained for 42 hips. The mean HHS was 91.1 (range 38.0-100.0), VAS satisfaction was 9.6 (range 6.0-10.0), VAS rest pain was 0.2 (range 0.0-4.0), and VAS load pain was 0.6 (range 0.0-9.0). Mean migration was 0.86 mm (range: 0.0-2.56) at 24 months and 1.34 mm (range: 0.09-3.14) at 5 years, and the mean annual migration rate was 0.22 (range: - 0.24-1.34). The mean total wear was 0.4 mm (range: 0.03-1.0), corresponding to a mean annual wear rate of 0.06 mm per year (range: 0.0-0.17). Radiographic analysis did not reveal any cases of osteolysis, and no revision surgeries had to be performed.
conclusionsAfter using vitamin-E blended HXLPE in cementless isoelastic monoblock cups, there were no obvious signs of osteolysis or aseptic loosening occurred. No patients required revision surgery after mid-term follow-up. Cup migration and wear values were well below the benchmarks considered predictive for potential future failure.
trial registrationThe trial registration number on ClinicalTrials.gov : NCT04322916 (retrospectively registered at 26.03.2020).
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