ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2022
Femoral antetorsion after calcar-guided short-stem total hip arthroplasty: A cadaver study.
Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 7 citations in OpenAlex.
- [Short-stem THA-complications and therapy options].Orthopadie (Heidelberg, Germany) · 2025Article
- A statistical shape analysis for the assessment of the main geometrical features of the distal femoral medullary canal.Frontiers in bioengineering and biotechnology · 2024Article
- Cemented or uncemented fixation: Which allows a more acceptable prosthetic femoral version in total hip arthroplasty?Journal of orthopaedic surgery and research · 2023Article
- Stem Design in Total Hip Arthroplasty Influences Ipsilateral Knee Valgus: A Retrospective Comparative Analysis of 2953 Cases.Journal of clinical medicine · 2023Article
- Femoral Anteversion in Total Hip Arthroplasty: Retrospective Comparison of Short- and Straight-Stem Models Using CT Scans.Journal of clinical medicine · 2023Article
- Femoral antetorsion after calcar-guided short-stem total hip arthroplasty: A cadaver study.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022Article
- Femoral Stem Version in Primary Hip Arthroplasty: Challenges and Advances in 3D Planning.JB & JS open accessReview
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Calcar-guided short stems in total hip arthroplasty (THA) permit surgeons to successfully reconstruct postoperative femoroacetabular offset, accurately restore leg length, and adequately re-establish a wide range of caput-collum-diaphyseal angles. However, their effect on femoral antetorsion is less known. Indeed, controlling antetorsion of the femoral stem can be challenging because of the differences in individual femoral geometry and curvature. Therefore, we investigated if calcar-guided short-stem THA alters femoral antetorsion and compared it with conventional-stem THA. Using 12 Thiel-fixed, full-body cadaver specimens from donors without known hip disorders, we compared an uncemented calcar-guided femoral short-stem prosthesis with an uncemented conventional straight-stem prosthesis. In a paired study setup, each specimen received a calcar-guided short stem on one side and a conventional stem on the other. On the acetabular side, all specimens received a press-fit, monobloc acetabular cup. Femoral antetorsion angles were measured using the Waidelich method, and pre- and post-operative angles of both sides were recorded. The mean preoperative femoral antetorsion angles were similar in both groups (24.8° ± 7.5° vs. 23.8° ± 6.1°, p = 0.313). Mean postoperative femoral antetorsion angles were 23.0° ± 5.5° in short-stem and 13.5° ± 7.1° in conventional-stem hips. Short-stem hips had a small but nonsignificant difference in femoral antetorsion angles pre- and post-operatively (1.8° ± 3.2°, p = 0.109), while the difference for conventional-stem hips was much larger and highly significant (10.3° ± 5.8°, p < 0.001). Calcar-guided short-stem THA effectively restores femoral antetorsion. However, how this affects long-term clinical outcomes and complications warrants further exploration.
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