ArticleInternational orthopaedics2017
What is the fate of the neck after a collum femoris preserving prosthesis? a nineteen years single center experience.
Article in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.
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Who cites it
15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 24 citations in OpenAlex.
- Metaphyseal cones and sleeves in revision total knee arthroplasty: Two sides of the same coin? Complications, clinical and radiological results-a systematic review of the literature.Musculoskeletal surgery · 2020Pooled it
- Periprosthetic bone remodelling of short-stem total hip arthroplasty: a systematic review.International orthopaedics · 2018Pooled it
- Femoral revision with primary cementless stems: a systematic review of the literature.Musculoskeletal surgery · 2018Pooled it
- Biomechanical Evaluation of a Novel Bionic Hip Prosthesis Designed for Optimized Load Transfer and Initial Stability.Orthopaedic surgery · 2025Article
- Is Collum Femoris Preserving Stem (CFP) an Epiphyseal-Stabilized Prosthesis? A Long-Term Single-Center Series Follow Up of 705 Cases.Orthopaedic surgery · 2025Article
- Risk Factors of Aseptic Loosening After Total Hip Arthroplasty With Collum Femoris Preserving Stem: A Long-Term Follow-Up Study.Orthopaedic surgery · 2025Article
- Biomechanical analysis of different THA cementless femoral stem designs in physiological and osteoporotic bone during static loading conditions.Archives of orthopaedic and trauma surgery · 2024Article
- Bisphosphonates' use and risk of aseptic loosening following total hip arthroplasty: a systematic review.EFORT open reviews · 2023Article
- Biomechanical Properties of Bionic Collum Femoris Preserving Hip Prosthesis: A Finite Element Analysis.Orthopaedic surgery · 2023Article
- Short-Term Functional Outcomes of Short Femoral Neck Stems Are the Same as Those of Conventional Stems in Primary Total Hip Arthroplasty.International journal of environmental research and public health · 2022Article
- Article
- A comparison of short-stem prostheses and conventional stem prostheses in primary total hip arthroplasty: a systematic review and meta-analysis of randomized controlled trials.Annals of translational medicine · 2021Article
- Management of the bone loss by metaphyseal sleeves in primary and revision knee arthroplasty: clinical experience and outcome after forty three cases.International orthopaedics · 2020Article
- Greater increase in femoral offset with use of collum femoris-preserving stem than Tri-Lock stem in primary total hip arthroplasty.The Journal of international medical research · 2020Article
- Observational
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
purposeThe aim of our study is to evaluate long-term outcomes from a cohort of patients treated with collum femoris preserving (CFP) stem correlating neck resorption with comorbidities, clinical outcomes, and complications.
methodsOne hundred seventy-six patients (194 hips) were retrospectively reviewed with a minimum follow-up (f.u.) of ten years. Demographic and surgical data were collected. Clinical and radiological evaluation was performed at the last follow up. We calculated a neck resorption ratio (NRR) for each patient. Main complications were recorded. A p-value of <0.05 was considered significant.
resultsThe mean Harris hip score (HHS) was 89.1 ± 5.7. The mean visual analogue scale (VAS) and Oxford hip score (OHS) values were 1.1 ± 1 and 41.3 ± 5.1, respectively. The mean leg length discrepancy was 1.5 mm ± 1.9. The mean NRR was 0.35. We observed six cases of aseptic loosening, two cases of infection, one implant revision for recurrent dislocation, and one stem revision after periprosthetic femoral fracture. The overall survival rate of the stem was 94.8%. Statistically significant associations were found between NRR and steroid therapy/stem malposition. Correlation between aseptic loosening and NRR was also statistically significant. Correlations between NRR and HHS/OHS were -0.34 and -0.28 respectively. Odds ratio for aseptic loosening were: 4.6 if NRR > 0.25; 16.9 if > 0.50 and 24.1 if > 0.75.
conclusionCFP hip stem provided excellent long-term outcomes. NRR is correlated to steroid therapy and stem malposition. The risk of stem aseptic loosening rises according to NRR increase. Patients with an NRR > 0.5, especially if under steroid therapy or with stem malposition, should be strictly monitored.
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