ArticleOrthopaedic journal of sports medicine2018
Derotational Osteotomy of the Distal Femur for the Treatment of Patellofemoral Instability Simultaneously Leads to the Correction of Frontal Alignment: A Laboratory Cadaveric Study.
Article in Orthopaedic journal of sports medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
20 citing papers in PubMed, 40 citations in OpenAlex.
- Temporary postoperative treatment with compartment-unloading knee braces or wedge insoles does not improve clinical outcome after partial meniscectomy.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Trial
- Article
- 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
- Combined Distal Femoral Osteotomy and Medial Patellofemoral Ligament Reconstruction for Patellar Instability and Genu Valgus: A Case Report and Literature Review.Orthopaedic surgery · 2025Review
- Distal femoral osteotomy for the treatment of chronic patellofemoral instability improves gait patterns.Archives of orthopaedic and trauma surgery · 2025Article
- Recurrent patellar dislocation: treatments and challenges.Frontiers in surgery · 2025Review
- [Single-cut derotational osteotomy of the distal femur for correction of torsion and frontal axis].Operative Orthopadie und Traumatologie · 2024Review
- Varus osteotomy as a salvage procedure for young patients with symptomatic patellofemoral arthritis and valgus malalignment at short- to mid-term follow-up: a case series.Archives of orthopaedic and trauma surgery · 2024Article
- Excessive femoral torsion is not associated with patellofemoral pain or instability if TKA is functionally aligned and the patella denervated.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Analysis of lower extremity alignment (LEA) in children with recurrent patellar dislocation by EOS system.Frontiers in pediatrics · 2023Article
- Radiographic Evaluation of Pediatric Patients with Patellofemoral Instability.Current reviews in musculoskeletal medicine · 2022Review
- Derotational Femoral Osteotomy for Treating Recurrent Patellar Dislocation in the Presence of Increased Femoral Anteversion: A Systematic Review.Orthopaedic journal of sports medicine · 2021Review
- Coronal and Transverse Malalignment in Pediatric Patellofemoral Instability.Journal of clinical medicine · 2021Article
- Three dimensional CT analysis of the change in rotational alignment in double level osteotomy after double level osteotomy performed for varus osteoarthritic knees.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2021Article
- Linear influence of distal femur osteotomy on the Q-angle: one degree of varization alters the Q-angle by one degree.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Mal-angulation of femoral rotational osteotomies causes more postoperative sagittal mechanical leg axis deviation in supracondylar than in subtrochanteric procedures.Journal of experimental orthopaedics · 2020Article
- The effect of increased femoral anteversion on the morphological and trabecular microarchitectural changes in the trochlea in an immature rabbit.Journal of advanced research · 2020Article
- The impact of mal-angulated femoral rotational osteotomies on mechanical leg axis: a computer simulation model.BMC musculoskeletal disorders · 2020Article
- A Novel Approach to Lower-limb Axial Alignment Analysis: A CT Study.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2019Article
- Retrograde Intramedullary Nail Fixation for Derotational Femoral Osteotomy for Recurrent Femoropatellar Instability.Case reports in orthopedics · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDerotational osteotomy of the distal femur allows the anatomic treatment of patellofemoral maltracking due to increased femoral antetorsion. However, such rotational osteotomy procedures have a high potential of intended/unintended changes of frontal alignment. PURPOSE/HYPOTHESIS: The purpose of this study was to perform derotational osteotomy of the distal femur and to demonstrate the utility of a novel trigonometric approach to address 3-dimensional (3D) changes on 2-dimensional imaging (axial computed tomography [CT] and frontal-plane radiography). The hypothesis was that 1-step single-cut osteotomy can simultaneously correct torsion and frontal alignment based on preoperatively calculated cutting angles. STUDY
designControlled laboratory study.
methodsEight human cadaveric whole legs (4 lower limb torsos) underwent derotational osteotomy of the distal femur of 20°. A straight leg axis, determined as a mechanical femorotibial angle (mFTA) of 0°, was chosen as a goal for postoperative frontal alignment. The inclination of the cutting angle from the lateral view was calculated individually for each cadaveric leg and was represented by a simple 3D-printed cutting guide for surgery. Specimens underwent CT for the measurement of torsion, while the frontal leg axis was determined on an upright radiograph preoperatively and postoperatively. Preoperative and postoperative angles were compared with the mathematical prediction model.
resultsThe preoperative mFTA ranged from -3.9° (valgus) to +3.4° (varus) (mean, -0.2° ± 2.6°). A postoperative mean mFTA of 0.37° ± 0.69° (95% CI, -0.22° to 0.95°) was achieved (
conclusionSingle-cut distal femoral osteotomy can be performed to simultaneously address rotational as well as frontal alignment using a preoperatively defined oblique cut, as determined by the presented reproducible calculation model. CLINICAL RELEVANCE: This study adds important knowledge to the technique of derotational osteotomy. This approach provides an individual, oblique single cut for the correction of torsion and frontal axis within a clinically insignificant margin. Simplified tables for calculation and a surgical reference make this model reproducible and safe.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.