Trial reportActa orthopaedica2020
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.
Trial report in Acta orthopaedica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
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
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.
- The limit of tolerable micromotion for implant osseointegration: a systematic review.Scientific reports · 2021Pooled it
- Trial
- 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
- 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
- Calcar-guided short-stem total hip arthroplasty in fractures of the femoral neck: a prospective observational study of 68 hips.Archives of orthopaedic and trauma surgery · 2024Observational
- Midterm Comparative Analysis of Short Femoral Stem Survivorship in Dorr Type A Femurs.Clinics in orthopedic surgery · 2024Article
- Retrospective clinical and X-ray-based outcome analysis of a short-stem hip arthroplasty taking into account the operative learning curve over 7 years in the 3-year control course.Archives of orthopaedic and trauma surgery · 2023Article
- The short-term outcomes of cementless stem for hip arthroplasty in the elderly patients: comparison with patients < 65 years.BMC musculoskeletal disorders · 2022Article
- Hip prosthetic loosening and periprosthetic osteolysis: A commentary.World journal of orthopedics · 2022Review
- Hip prosthetic loosening: A very personal review.World journal of orthopedics · 2021Review
- Calcar-guided short-stem total hip arthroplasty: Will it be the future standard? Review and perspectives.World journal of orthopedics · 2021Review
- 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
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and purpose - Short-stem hip arthroplasty has been a viable alternative to standard stems for the treatment of hip osteoarthritis for over 10 years. This study assessed whether a correlation existed between a greater initial increase in implant migration and inferior clinical outcomes at 5 years postoperatively. Results on these patients after 2 years have been published previously.Patients and methods - Radiostereometry and clinical scoring were undertaken after surgery and at 3, 6, 12, and 24 months, and 5 years postoperatively. The migration and the clinical outcomes data from the patients with initial migrations at 3 months above the 75th percentile (≥ 75% group) were compared with those with migrations at 3 months of less than the 75th percentile (< 75% group).Results - Between 3 months and 5 years after surgery, the mean resultant implant migrations were 0.40 mm (SD 0.32) in the ≥ 75% group and 0.39 mm (SD 0.25) in the < 75% group. The mean Harris Hip Scores and SF-36 physical scores at 5 years postoperatively were 100 (SD 0.4) and 44 (SD 12), respectively, for the ≥ 75% group and 99 (SD 2) and 50 (SD 10), respectively, for the < 75% group. The differences between the patient groups were not statistically significant.Interpretation - There was no correlation between a greater initial migration and inferior clinical outcomes at 5 years postoperatively. Despite a greater initial migration, there were no risks of early aseptic loosening and inferior midterm clinical outcomes associated with a short-stem implant with a primary metaphyseal anchorage.
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Registered trials
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