ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019
TKA design-integrated trochlea groove rotation reduces patellofemoral pressure.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 18 citations in OpenAlex.
- Does contemporary total knee designs replicate the anatomy of the native trochlea?European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- Article
- The Trochlear Paradox in Native Knees and Its Potential Impact on Total Knee Arthroplasty: An MRI-Based Correlation Study Investigating the Effect of Varying Posterior Femoral Condyle Angles on the Patellofemoral Joint.Journal of clinical medicine · 2024Article
- Factors that impact the patellofemoral contact stress in the TKA: a review.Arthroplasty (London, England) · 2023Review
- Mismatch between trochlear coronal alignment of arthritic knees and currently available prosthesis: a morphological analysis of 4116 knees and 45 implant designs.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Alignment analysis of Brainlab knee 3 navigation-guided total knee arthroplasty using the adjusted mechanical method.Frontiers in surgery · 2022Article
- The use of an asymmetrical tibial tray in TKA optimises tibial rotation when fitted to the posterior tibial plateau border.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- The tibial cut influences the patellofemoral knee kinematics and pressure distribution in total knee arthroplasty with constitutional varus alignment.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- Literature review of the causes of pain following total knee replacement surgery: prosthesis, inflammation and arthrofibrosis.EFORT open reviews · 2020Review
- Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior-Stabilized Prostheses in Total Knee Arthroplasty.Orthopaedic surgery · 2020Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTotal knee arthroplasty (TKA) leaves 11-25% of the patients unsatisfied, and patellofemoral joint pain is one cause. This study aimed to compare the differences between kinematics and load transfer in the same knee with axial internal/external rotation of the femoral component (CoRo) versus a separate axial internal/external trochlear groove rotation (TrRo) which is included in the TKA trochlea design.
methodsA validated weight-bearing finite element model with modifications of the TKA axial femoral component rotation (CoRo) and a modified trochlear rotation (TrRo) was calculated and analysed.
resultsCompared to the neutrally implanted TKA at 105° of flexion, a 6° external rotation of the trochlear groove reduced the retropatellar stress by 7%, whereas a 3° internal trochlear groove rotation increased the retropatellar stress by 7%. With femoral component rotation, the tibia inlay stress of 6.7 MPa at 60° of flexion was two times higher both with a 3° internal component rotation and a 6° external rotation.
conclusionThese results demonstrate in the tested TKA design that a trochlear groove rotation can reduce retropatellar stress. Additionally, during the TKA operation, the surgeon should be aware of the significant influence of axial femoral component rotation on mechanical inlay stress during flexion and of the fact that even small changes in the patellofemoral joint may influence the tibiofemoral joint. These results support that an external rotation of the femoral component should be preferred in TKA to avoid anterior knee pain. Furthermore, new developed TKA designs should integrate an externally rotated trochlea groove.
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