ArticleWorld journal of orthopedics2022
Insufficient lateral stem contact is an influencing factor for significant subsidence in cementless short stem total hip arthroplasty.
Article in World journal of orthopedics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
- Clinical application of artificial intelligence-assisted three-dimensional planning in direct anterior approach hip arthroplasty.International orthopaedics · 2024Trial
- [Femoral Stem Subsidence in Total Hip Arthroplasty: Comparison between Fixation Principles].Revista brasileira de ortopedia · 2026Article
- Femoral Stem Subsidence in Total Hip Arthroplasty: Comparison between Fixation Principles.Revista brasileira de ortopedia · 2026Article
- Stem subsidence in total hip arthroplasty: retrospective investigation of a short stem using a simple measurement approach.Archives of orthopaedic and trauma surgery · 2024Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSubsidence is one of the concerning early complications in cementless femoral stem. Few publications have studied the influencing factors for subsidence in short cementless stems, due to their metaphyseal anchoring without diaphyseal invasion, they might demonstrate different subsidence patterns than with the conventional stems.
aimTo analyze the factors associated with significant subsidence in short stems, including any radiographic parameters.
methodsThe digitized radiographs of 274 consecutive short stem total hip arthroplasties were retrospectively reviewed. Subsidence, neck-filling ratio (NFR), seating height and lateral stem contact were evaluated after a minimum of two years follow-up. A threshold of subsidence > 3 mm was considered a clinically significant migration.
resultsFor the entire cohort, subsidence occurred in 75 cases (27.4%) with the mean stem subsidence of 0.5 mm. (0-12.7, 1.68). Twelve hips (4.4%) had significant subsidence (> 3 mm). The univariate regression analysis demonstrated that age, diagnosis, BMI, Dorr's type B, NFR, and seating height had no significant influence on significant subsidence, whereas insufficient lateral stem contact (≥ 1 mm) did have a statistically significant influence [Odds ratio (OR) = 5.02; 95%CI: 1.3-18.9;
conclusionThis study demonstrated that insufficient lateral stem contact was a statistically significant influencing factor on significant subsidence. Therefore, it is a particularly important step to create proper lateral cortical contact when performing the short stem total hip arthroplasty.
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