ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2021
Cemented hemiarthroplasty for femoral neck fracture patients: collarless, polished tapered stem (CPT) versus anatomic matte stem (Lubinus SP2).
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 0 citations in OpenAlex.
- Low Rate of Periprosthetic Femoral Fracture in Dorr Type B and C Femurs With the Anterior Approach Using Stems Cemented According to the "French Paradox".Arthroplasty today · 2026Article
- Reduced long-term periprosthetic fracture rates with composite beam versus polished tapered stems in cemented hip arthroplasty : a ten-year observational study.Bone & joint open · 2026Article
- Reduced periprosthetic fracture rate for a cemented anatomical versus a tapered polished stem in hip arthroplasty: A 6-year follow-up of a prospective observational cohort study.Journal of experimental orthopaedics · 2025Article
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4 authors at 1 institution in 1 country.
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Abstract
backgroundCemented hemiarthroplasty is a well-documented treatment for patients with femoral neck fractures (FNFs). However, there are not many cohort studies comparing different types of hemiarthroplasty (HA).
objectiveTo compare CPT and Lubinus SP2 HA for FNF patients concerning complications and radiological measurements.
methodsFrom January 1, 2013, CPT was introduced instead of Lubinus SP2 as the new cemented HA due to a regional procurement. Data were retrieved 3 years prior and after the introduction. All patient health records were retrospectively reviewed for types of implant, American Society of Anesthesiologists (ASA) score and duration of admission. All X-ray images were analyzed for radiological measurements concerning offset, stem angulation and cement filling. Mortality and major complications within 1 year were retrieved from patient health records as well as the Danish National Patient Registry. Major complications were defined as dislocations, periprosthetic fractures and revisions.
results584 cemented HA were included, 300 CPT and 284 with Lubinus SP2. The mean age (SD) was 82 (8.2) years, and there was no baseline difference between the groups concerning age, sex, ASA score and mortality. There were 8.7% major complications for CPT and 9.2% for Lubinus SP2 (p = 0.836). There were, however, seven periprosthetic fractures in the CPT group and one in the Lubinus SP2 group (p = 0.04). In contrast, there were 20 dislocations in the Lubinus SP2 group and 10 in the CPT group (p = 0.042). There was no statistical difference between the stem angulation and periprosthetic fractures (p = 0.824) or major complications (p = 0.602). The Lubinus SP2 had a mean plus 2.7 mm offset postoperatively (p = 0.001), while the CPT had plus 10.6 mm (p < 0.000). The mean (SD) angle of the stems was 1.39 (1.75) degrees for Lubinus SP2 and 2.46 (1.99) for CPT. There was no difference in cementation (p = 0.308).
conclusionThere was no overall statistical difference between the CPT and Lubinus SP2 stem regarding major complications. However, the CPT had a higher prevalence of periprosthetic fractures, while the Lubinus SP2 had a higher dislocation prevalence. The CPT stem had overcorrection of offset and a higher degree of varus positioning.
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