Trial reportEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2022
Accuracy of empirical distal femoral valgus cut angle of 4° to 6° in total knee arthroplasty: a randomized controlled trial.
Trial report in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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
3 citing papers in PubMed, 8 citations in OpenAlex.
- Alignment accuracy and functional outcomes between hand-held navigation and conventional instruments in TKA: a randomized controlled trial.BMC musculoskeletal disorders · 2022Trial
- AI-Assisted 3D Planning of CT Parameters for Personalized Femoral Prosthesis Selection in Total Hip Arthroplasty.Therapeutics and clinical risk management · 2025Article
- Three-Dimensional Bowing Measurement of Distal Femur at Actual Size and Clinical Implications of Total Knee Arthroplasty.Medicina (Kaunas, Lithuania) · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionCurrently, the best and simplest way that used to select the distal femoral valgus cut (DFVC) angle in total knee arthroplasty (TKA) is standing long leg radiograph. However, this kind of film is still not available in all hospitals. The purpose of this study is to compare the accuracy of different empirical DFVC angles in the restoration of the neutral mechanical alignment of the femoral component after TKA.
method125 patients who diagnosed primary osteoarthritic knee and underwent unilateral TKA were randomly assigned into three groups: A, B, and C, according to the use of an intramedullary guide with the DFVC angle of 4°, 5°, and 6°, respectively. At three months after surgery, anteroposterior hip-to-ankle computed tomography (CT) scanograms were evaluated. Mechanical axis angle (MAA), mechanical lateral distal femoral angle (LDFA), femoral bowing, femoral neck-shaft angle (FNSA), and outliers of femoral component position were measured and compared among three groups. Independent influencing factors for the outliers > ±3° were determined using binary logistic regression analysis.
resultsGroup B was older than group A. There were no significant differences of postoperative MAA, LDFA, femoral bowing, and FNSA among three groups. Outliers > ±3° of femoral component position in each group were 14.6%, 19.0%, and 16.7%, respectively (p = 0.865). When considering the outliers > ±2°, group C (35.7%) had a trend to have fewer outliers than groups A and B (41.5 and 42.9%). However, this finding was not reached the statistical significance (p = 0.778). Femoral bowing was only significantly influencing factors that related to the outliers > ±3° (p = 0.003).
conclusionThis study demonstrates that there are no significant differences in coronal femoral component alignment among using the DFVC angle of 4°, 5°, and 6°. The use of the DFVC angle of 6° had a trend to reduce the outliers. Nevertheless, femoral bowing is the crucial influencing factor for selecting the degree of DFVC angle.
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.