ArticleJournal of experimental orthopaedics2020
Mal-angulation of femoral rotational osteotomies causes more postoperative sagittal mechanical leg axis deviation in supracondylar than in subtrochanteric procedures.
Article in Journal of experimental orthopaedics, 2020. 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.
- Quantifying potential leg axis alteration from extramedullary tibial guide malalignment in total knee arthroplasty: a computer simulation.BMC musculoskeletal disorders · 2026Article
- Reducing unintended valgus deformity after supracondylar femoral derotational osteotomy: Influence of derotation amount and osteotomy method based on femoral antecurvature.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- A tension system for angular correction of bent intramedullary nails: in vitro analysis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- A surface registration-based approach for assessment of 3D angles in guided growth interventions in the growing femur.Journal of experimental orthopaedics · 2024Article
- Changes in sagittal and axial plane alignment in medial opening wedge high tibial osteotomy: a prospective observational study.Musculoskeletal surgery · 2023Observational
- Correction of complex three-dimensional deformities at the proximal femur using indirect reduction with angle blade plate and patient-specific instruments: a technical note.Journal of orthopaedic surgery and research · 2021Article
- Sagittal Plane Assessment in Deformity Correction Planning: The Sagittal Joint Line Angle.Strategies in trauma and limb reconstructionArticle
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeAlteration of the postoperative frontal mechanical leg axis is a known problem in femoral rotational osteotomies. However, the maintenance of the sagittal mechanical leg axis seems also important. Goal of this study was to investigate the impact of femoral rotational osteotomies on the sagittal mechanical leg axis and to identify the degree of mal-angulation of the osteotomy planes that alter the postoperative sagittal alignment relevantly.
methodsUsing 3D bone models of two patients with a pathologic femoral torsion (42° antetorsion and 6° retrotorsion), subtrochanteric and supracondylar rotational osteotomies were simulated first with an osteotomy plane perpendicular to the mechanical femoral axis (baseline osteotomy plane), second with predefined mal-angulated osteotomy planes. Subsequently, five different degrees of rotation were applied and the postoperative deviations of the sagittal mechanical leg axes were analyzed.
resultsUsing the baseline osteotomy plane, the sagittal mechanical leg axis changed by 0.4° ± 0.5° over both models. Using the mal-angulated osteotomy planes, maximum deviation of the sagittal mechanical leg axis of 4.0° ± 1.2° and 11.0° ± 2.0° was observed for subtrochanteric and for supracondylar procedures, respectively. Relevant changes of more than 2° were already observed with mal-angulation of 10° in the frontal plane and 15° of rotation in supracondylar procedures.
conclusionRelevant changes of the postoperative sagittal mechanical leg axis could be observed with just slight mal-angulation of the osteotomy planes, in particular in supracondylar procedures and in cases with higher degrees of rotation. However, osteotomies perpendicular to the femoral mechanical axis showed no relevant alterations.
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