ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020
No clinical differences at the 2-year follow-up between single radius and J-curve medial pivot total knee arthroplasty in the treatment of neutral or varus knees.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Clinical radiographic outcomes and survivorship of medial pivot design total knee arthroplasty: a systematic review of the literature.Archives of orthopaedic and trauma surgery · 2022Pooled it
- Effect of Tibial Slope on Knee Mechanics for Posterior Cruciate Ligament Deficient Cruciate-retaining Total Knee Arthroplasty.Arthroplasty today · 2026Article
- Sensor-guided robot-assisted TKA more precisely achieves targeted functional knee phenotypes than conventional robotic-assisted technique.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Comparable outcomes with a potential functional advantage of PCL preservation in medial-stabilized total knee arthroplasty: A systematic review and meta-analysis from the FP-UCBM Knee Study Group.Journal of experimental orthopaedics · 2025Review
- Medial Congruent and Medial Pivot Inserts in Total Knee Arthroplasty: A Scoping Review.Medicina (Kaunas, Lithuania) · 2025Article
- The Effect of the Design of Polyethylene Inserts in Total Knee Arthroplasty on Patient Reported Outcomes.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025Article
- Biomechanical considerations for an easily-restricted robot-assisted kinematic alignment: a surgical technique note.Arthroplasty (London, England) · 2023Article
- Native knee kinematics is not reproduced after sensor guided cruciates substituting total knee arthroplasty.Journal of experimental orthopaedics · 2023Article
- No difference in 13-year survival after medial pivot or central pivot mobile bearing total knee arthroplasty. A propensity matched comparative analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Kinetic Sensors for Ligament Balance and Kinematic Evaluation in Anatomic Bi-Cruciate Stabilized Total Knee Arthroplasty.Sensors (Basel, Switzerland) · 2021Article
- Kinematic Comparison between Medially Congruent and Posterior-Stabilized Third-Generation TKA Designs.Journal of functional morphology and kinesiology · 2021Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeModern total knee arthroplasty (TKA) systems are designed to reproduce the normal knee kinematics and improve patient outcome. The authors compared two different third-generation medial pivot TKA implants, having a single-radius or a J-curve design in their sagittal plane, hypothesizing no clinical differences.
methodsTwo cohorts of 50 patients who underwent primary TKA were first preoperatively matched by sex, deformity, body mass index (BMI), Oxford Knee Score (OKS), Knee society score (KSS) and range of motion (ROM) and then statistically analyzed at a minimum follow-up (FU) of 2 years. An identical surgical technique, which aimed to reproduce a slightly tighter medial than lateral compartment, was used in all knees.
resultsAt a minimum follow-up of 2 years (range 24-34 months) there were no statistically significant differences in OKS and KSS between the two implant groups. The final ROM differed statistically between the two groups: the average maximum active flexion was 123° in the J-curve femoral design group with an adapted "medially-congruent" polyethylene insert, and 116° in the single radius femoral design with a medial "ball-in-socket" articulation.
conclusionNo clinical and radiological differences were found when the two cohorts of patients were compared. This study showed that the implant design played a minor role in the final outcome as opposed to a precise surgical technique. LEVEL OF EVIDENCE: Retrospective case-control study, Level III.
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