ArticleAnnals of translational medicine2016
Evolution of trochlear compartment geometry in total knee arthroplasty.
Article in Annals of translational medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06483178 (A Randomised Controlled Trial Comparing Gait in Fixed or Rotating Cementless Total Knee Arthroplasties), which is not on this map. Cited by 29 papers, 1 of them a synthesis that pooled it.
What it found
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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.
A Randomised Controlled Trial Comparing Gait in Fixed or Rotating Cementless Total Knee Arthroplasties
Who cites it
29 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.
- Implant survival of 3rd-condyle and post-cam posterior-stabilised total knee arthroplasty are comparable at follow-up > 10 years: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- Reliability of Ultrasound Measurements in the Assessment of Femoral Trochlear Morphology in Healthy Adolescents.Diagnostics (Basel, Switzerland) · 2026Article
- Valgus knee deserves personalized total knee arthroplasty.EFORT open reviews · 2026Review
- Does patellar resurfacing matter in robotic-assisted total knee arthroplasty with functional alignment principles?Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Increased implant thickness in mechanically aligned off-the-shelf total knee replacement compared to bone resection.Journal of experimental orthopaedics · 2025Article
- Restoration of the anterior compartment after robotic total knee arthroplasty significantly improves functional outcome and range of motion at 1 year.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Does contemporary total knee designs replicate the anatomy of the native trochlea?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- In Vitro Verification of Simulated Daily Activities Using Implant-Specific Kinematics from In Vivo Measurements.Bioengineering (Basel, Switzerland) · 2024Article
- Primary Total Knee Arthroplasty for Treating Osteoarthritic Knees with Neglected Patellar Dislocation.Medicina (Kaunas, Lithuania) · 2024Article
- Automating Linear and Angular Measurements for the Hip and Knee After Computed Tomography: Validation of a Three-Stage Deep Learning and Computer Vision-Based Pipeline for Pathoanatomic Assessment.Arthroplasty today · 2024Article
- Differences in Trochlear Morphology of a New Femoral Component Designed for Kinematic Alignment from a Mechanical Alignment Design.Bioengineering (Basel, Switzerland) · 2024Article
- Design and rationale of the ATtune Knee Outcome Study (ATKOS): multicenter prospective evaluation of a novel uncemented rotating platform knee system.BMC musculoskeletal disorders · 2021Observational
- Comparison of Patellofemoral-Specific Clinical and Radiographic Results after Total Knee Arthroplasty Using a Patellofemoral Design-Modified Prosthesis and Its Predecessor.Clinics in orthopedic surgery · 2021Article
- No reduced patellar loading with latest-generation cruciate-retaining total knee arthroplasty-a comparative study of Attune and Press-Fit Condylar®.International orthopaedics · 2021Article
- Early outcomes and predictors of patient satisfaction after TKA: a prospective study of 200 cases with a contemporary cemented rotating platform implant design.Journal of experimental orthopaedics · 2021Article
- Sexual and ethnic polymorphism result in considerable mismatch between native trochlear geometry and off-the-shelf TKA prostheses.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Patellar facet ratio affects knee pain, stair climbing and stair descent after TKA without patellar resurfacing.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Controversy: supporting patellar resurfacing in total knee arthroplasty - do it.EFORT open reviews · 2020Review
- Modern total knee arthroplasty designs do not reliably replicate anterior femoral morphology.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Influence of femoral implant design modification on anterior knee pain and patellar crepitus in patients who underwent total knee arthroplasty without patella resurfacing.BMC musculoskeletal disorders · 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
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe study aimed to compare trochlear profiles in recent total knee arthroplasty (TKA) models and to determine whether they feature improvements compared to their predecessors. The hypothesis was that recent TKA models have more anatomic trochlear compartments and would display no signs of trochlear dysplasia.
methodsThe authors analyzed the geometry of the 6 following TKA models using engineering software: PFC and Attune (DePuy), NexGen and Persona (Zimmer), Noetos and KneeTec (Tornier). The mediolateral trochlear profiles were plotted at various flexion angles (0°, 15°, 30° and 45°) to deduce the sulcus angle.
resultsAnalysis of sulcus angles reveals general convergence of recent designs towards anatomic values. At 0° of flexion, sulcus angles of recent implant models were between 156.0-157.4°, while those of previous generation models between 154.5-165.5°. At 30° of flexion, sulcus angles of recent models also lie within 145.7-148.6°, but those of previous models are between 149.5-152.0°. All three manufacturers deepened their trochlear profile at 30° of flexion in recent models compared to earlier designs. Sulcus angles converge towards anatomic values but still exceed radiologic signs of dysplasia by 2-5°.
conclusionsRecent TKA designs have more anatomic trochlear geometries than earlier TKA models by the same manufacturers, but trochlear compartments still exceed radiologic signs of trochlear dysplasia by 2° to 5°. The hypothesis that recent TKA models display no signs of trochlear dysplasia is therefore refuted. Surgeons should be aware of design limitations to optimize choice of implant and extensor mechanisms alignment. LEVEL OF EVIDENCE: IV geometric implant analysis.
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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.