ArticleThe Iowa orthopaedic journal2025
Radiographic Performance of a Novel Femoral Stem Design.
Article in The Iowa orthopaedic journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
2 citing papers in PubMed.
- Multicentre outcomes of total hip arthroplasty using a novel collared cementless femoral stem.Bone & joint open · 2026Article
- Femoral component collar and calcar contact during total hip arthroplasty: gap incidence, subsidence, and biomechanical testing - a scoping review.Orthopedic reviews · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: In the United States, cementless fixation is the gold standard for elective total hip arthroplasty (THA). Many modern cementless stem designs have re-introduced collared stem options in recent years which have demonstrated a lower risk of fracture. Minimal studies, however, outline radiographic performance of this novel stem design. As such, the primary purpose of this single-center study was to determine the radiographic performance, including defining patterns of radiographic incorporation and remodeling, associated with this novel, single stem design. Methods: Data within the institutional data repository was queried for patients who underwent a primary or conversion THA between January 1st, 2016 and July 31st, 2022. Patients were included in the study if they were 18 years of age or older and had a minimum of a one-year follow-up visit. Patients were excluded if they did not have a radiograph at the one-year follow-up or if the stem was placed in a revision setting. Continuous data were reported as means and standard deviations (± SD), and categorical data were reported as number of cases (n) and percentages (%). Results: A total of 592 encounters (562 patients) were included in the final analyses. At the one-year postoperative visit, no stems met the criteria for radiographic loosening, 502 (85.2%) patients had distinct radiographic osseointegration of their stem as defined by at least one radiographic spot weld. There was an 18.7% incidence of calcar-collar gaps on initial radiographs and 66.7% of these filled in by one-year. The intraoperative fracture rate was 0.7% without any cases of secondary stem revision or loosening and only 0.8% of stems showed subsidence (i.e., all less than 5 mm) without loosening or revision. Thigh pain within the first year was reported in 1.7% of patients. The all-cause stem revision at one-year was 0.2%. Conclusion: This study demonstrated excellent rates of healing of this novel stem design. Additionally, this novel stem was associated with low rates of periprosthetic fracture, stem revision, and thigh pain.
Indexed as
Identifiers
40606729PMC12212328What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.