ArticleClinical biomechanics (Bristol, Avon)2016
In-vivo analysis of flexion axes of the knee: Femoral condylar motion during dynamic knee flexion.
Article in Clinical biomechanics (Bristol, Avon), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 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
12 citing papers in PubMed.
- Evaluation of a novel robotic testing method for stability and kinematics of total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- A reproducible representation of healthy tibiofemoral kinematics during stair descent using REFRAME - Part II: Exploring optimisation criteria and inter-subject differences.Scientific reports · 2024Article
- The morphology of the femoral posterior condyle affects the external rotation of the femur.Journal of experimental orthopaedics · 2023Article
- Investigation of Characteristic Motion Patterns of the Knee Joint During a Weightbearing Flexion.Annals of biomedical engineering · 2023Article
- Comparison of the femoral condylar ellipse line and the surgical epicondylar axis: 3D measurement by MRI scans in healthy Chinese people.Orthopaedic surgery · 2023Article
- Ergonomic dual four-bar linkage knee exoskeleton for stair ascent assistance.Frontiers in robotics and AI · 2023Article
- Estimation of Tibiofemoral Joint Contact Forces Using Foot Loads during Continuous Passive Motions.Sensors (Basel, Switzerland) · 2022Article
- Articulation of the femoral condyle during knee flexion.Journal of biomechanics · 2022Article
- The Medial structures of the knee have a significant contribution to posteromedial rotational laxity control in the PCL-deficient knee.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Physiological articular contact kinematics and morphological femoral condyle translations of the tibiofemoral joint.Journal of biomechanics · 2021Article
- The inclination of the femoral medial posterior condyle was almost vertical and that of the lateral was tilted medially.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- The biomechanical effect of different posterior tibial slopes on the tibiofemoral joint after posterior-stabilized total knee arthroplasty.Journal of orthopaedic surgery and research · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
backgroundTransepicondylar axis and geometrical center axis are widely used for investigation of the knee kinematics and component alignment in total knee arthroplasty. However, the kinematic characteristics of these knee axes are not well defined in literature. This study investigated the femoral condylar motion during a dynamic flexion of the knee using different flexion axes.
methodsTwenty healthy knees (10 males and 10 females) were CT scanned to create 3D anatomic models. The subjects performed a single leg flexion from full extension to maximum flexion while the knees were imaged using fluoroscopes. The femoral condyle translations in anterior-posterior and proximal-distal directions were described using clinical transepicondylar axis, surgical transepicondylar axis and geometrical center axis.
findingsThe subjects achieved -9.4° (SD 3.0°) hyperextension at full extension and 116.4° (SD 9.0°) at maximum flexion of the knee. The anterior-posterior translations of the three flexion axes were different for the medial condyle, but similar for the lateral condyle. Substantial variations of the condylar motion in proximal-distal direction were measured along the flexion path using these axes. While the surgical transepicondylar axis maintained condyle heights from full extension to 60° of flexion, geometrical center axis showed little changes in condyle heights from 30° to maximum knee flexion. The condyles moved distally beyond 90° flexion using both transepicondylar axes.
interpretationThe femoral condylar motion measurement is sensitive to the selection of flexion axis. The different kinematic features of these axes provide an insightful reference when selecting a flexion axis in total knee arthroplasty component alignment.
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.