ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2015
External rotation of the femoral component decreases patellofemoral contact stress in total knee arthroplasty.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.
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
16 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Mean distraction force applied in tension-controlled ligament-balanced total knee arthroplasty: A systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Pooled it
- Management of patella maltracking after total knee arthroplasty: a systematic review.Musculoskeletal surgery · 2023Pooled it
- Femoral rotation and medial flexion gap tightness in functional alignment robotic total knee arthroplasty for varus knees.Journal of robotic surgery · 2026Observational
- Patient-Specific Restoration of Constitutional Alignment Within Predefined Safety Boundaries Using Three-Dimensional Navigation in Primary Total Knee Arthroplasty: One-Year Clinical and Radiographic Outcomes.Journal of clinical medicine · 2026Article
- Partial lateral patellar facetectomy in primary total knee arthroplasty: a common addition with limited support.EFORT open reviews · 2026Review
- Femur rotational alignment in total knee arthroplasty: Delphi consensus statements from European knee society (EKS).Archives of orthopaedic and trauma surgery · 2025Article
- Article
- The effect of femoral prosthesis design on patellofemoral contact stresses in total knee arthroplasty: a case-control study with mid-term follow-up minimum 3-year follow-up.Journal of orthopaedic surgery and research · 2023Article
- Factors that impact the patellofemoral contact stress in the TKA: a review.Arthroplasty (London, England) · 2023Review
- The Influence of Femoral Internal Rotation on Patellar Tracking in Total Knee Arthroplasty Using Gap Technique.Clinics in orthopedic surgery · 2021Article
- Combined Total Knee Arthroplasty and Medial Patellofemoral Ligament Reconstruction for Chronic Patellar Dislocation and Severe Osteoarthritis.Arthroplasty today · 2021Article
- Different femoral rotation with navigated flexion-gap balanced or measured resection in total knee arthroplasty does not lead to different clinical outcomes.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- No correlation between rotation of femoral components in the transverse plane and clinical outcome after total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Observational
- Medial parapatellar approach leads to internal rotation of tibial component in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018Article
- Patellar tracking in primary total knee arthroplasty.EFORT open reviews · 2018Article
- Appropriate sagittal femoral component alignment cannot be ensured by intramedullary alignment rods.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016Article
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.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study was to investigate the relationship between patellofemoral (PF) contact stress in vivo and the alignment of the femoral component in patients after total knee arthroplasty (TKA).
methodsThirty knees with medial compartment osteoarthritis that underwent mobile-bearing TKA with modified gap technique were evaluated. Surgery was performed using a subvastus approach to eliminate the effect of the approach to muscle balance, with a computed tomography-based navigation system (Vector Vision 1.61; Brain Lab, Heimstetten, Germany). PF contact stress was measured by a Flexiforce pressure sensor (Nitta Co., Ltd., Osaka, Japan) intraoperatively, and the results were compared with the alignment of the femoral component after TKA.
resultsThe PF contact stress was not correlated with sagittal and coronal alignment of the femoral component and patellar tracking, whereas rotational alignment of the femoral component was negatively correlated with PF contact stress (r = -0.718, p < 0.01).
conclusionsRegarding the alignment of the femoral component, only the rotational alignment of the femoral component was correlated with PF contact stress. PF contact stress decreased more as the femoral component rotated more externally. LEVEL OF EVIDENCE: Case control study, Level III.
Indexed as
Identifiers
25026929What 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.