ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2020
Is the position of dual-mobility cup in THA for femoral neck fractures optimal? A retrospective study.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.
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Who cites it
3 citing papers in PubMed, 2 syntheses or guidelines pooled it, 6 citations in OpenAlex.
- Dual mobility total hip arthroplastyPeerJ · 2026Pooled it
- Do Dual-mobility Cups Reduce Revision Risk in Femoral Neck Fractures Compared With Conventional THA Designs? An International Meta-analysis of Arthroplasty Registries.Clinical orthopaedics and related research · 2022Pooled it
- Radiological assessment of cup anteversion with a novel 3D-printed highly-porous titanium dual mobility cup.Journal of orthopaedic surgery and research · 2025Article
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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
introductionFew studies have examined the relationship between the indication of total hip arthroplasty (THA) and the quality of its technical achievement. Implants mispositioning could happen more frequently while THA is performed on acute proximal femur fracture cases. The purpose of this study was to compare the frontal inclination (FTA) of double-mobility cups (DMC) in patients undergoing THA for hip osteoarthritis or fracture. MATERIALS AND
methodsThis retrospective study included all patients undergoing THA for hip fracture or hip osteoarthritis. The surgical protocol was identical in all patients and included a systematic DMC implantation. In the postoperative period, the FTA was measured on anteroposterior pelvic radiographs and compared between groups. Malposition was defined for FTA values outside the 35°-55° range.
resultsThe study included 97 patients: 33 men, mean age: 78.8 years, 45 fractures. The misalignment rate was 55% after THA for fracture versus 33% for hip osteoarthritis (p = 0.02). The mean FTA value was 39° for "fracture" and 43° for "hip osteoarthritis" groups (p = 0.052). The risk for hip dislocation, surgical revision for mechanical or infectious cause was identical in both groups. DISCUSSION: Misalignment was more frequent when THA was achieved for an acute proximal femur fracture. Several explanations can be proposed: lesser bone quality, incomplete removal of upper acetabular osteophytes which can lead to excessive horizontalization of the cup and surgical procedure performed by younger surgeons in "fracture group". These misalignments don't cause more mechanical complications in the first months after surgery.
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