ArticleInternational orthopaedics2020
Does the medial pivot knee improve the clinical and radiographic outcome of total knee arthroplasty? A single centre study on two hundred and ninety seven patients.
Article in International orthopaedics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.
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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.
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Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- 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
- Is non-operative management of acetabular fracture a viable option for older patients? A systematic review of the literature for indication, treatments, complications and outcome.Acta bio-medica : Atenei Parmensis · 2022Pooled it
- Medial stabilised total knee arthroplasty achieves comparable clinical outcomes when compared to other TKA designs: a systematic review and meta-analysis of the current literature.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- PCL retained is safe in medial pivot TKA-a prospective randomized trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Trial
- Effect of preservation versus sacrifice of the posterior cruciate ligament on clinical outcomes after medial congruent total knee arthroplasty using mechanical alignment: A systematic review and meta-analysis.Journal of experimental orthopaedics · 2026Review
- Medial Congruent and Medial Pivot Inserts in Total Knee Arthroplasty: A Scoping Review.Medicina (Kaunas, Lithuania) · 2025Article
- No difference in clinical outcomes when retaining or sacrificing the posterior cruciate ligament in medial congruent total knee replacement. A retrospective study.Musculoskeletal surgery · 2025Article
- No significant clinical differences between native or reduced posterior tibial slope in kinematically aligned total knee replacement with posterior cruciate-retaining.Journal of orthopaedics · 2024Article
- Modern Total Knee Arthroplasty Bearing Designs and the Role of the Posterior Cruciate Ligament.Arthroplasty today · 2023Article
- Comparison between gaits after a medial pivot and posterior stabilized primary total knee arthroplasty: a systematic review of the literature.Arthroplasty (London, England) · 2023Review
- Knee pivot location in asymptomatic older adults.Journal of biomechanics · 2023Article
- No Significant Differences in Clinical and Radiographic Outcomes between PCL Retained or Sacrificed Kinematic Aligned Medial Pivot Total Knee Arthroplasty in Varus Knee.Journal of clinical medicine · 2022Article
- Article
- Validation of an MRI Technique for the 6-DOF Knee Kinematics Measurement.Frontiers in bioengineering and biotechnology · 2022Article
- 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
- Early migration of a medially stabilized total knee arthroplasty : a radiostereometric analysis study up to two years.Bone & joint open · 2021Article
- Current Reconstruction Options in Periprosthetic Fractures Around the Knee.Geriatric orthopaedic surgery & rehabilitation · 2021Review
- Mid-term survivorship and clinical outcomes of the medial stabilized systems in primary total knee arthroplasty: A systematic review.Journal of orthopaedicsReview
- Restricted kinematic alignment in primary total knee arthroplasty: A systematic review of radiographic and clinical data.Journal of orthopaedicsReview
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTotal knee arthroplasty (TKA) is a cost-effective surgery with a survival rate higher than 90% after 15 years. Nevertheless, patients are unsatisfied in more than 15% of cases. Medial pivot (MP) prosthetic designs were introduced in late 90's with the aim to reproduce natural knee kinematics. The purpose of this study is to evaluate the survivorship and clinical outcomes of a novel design of MP knee with a minimum follow-up of five years.
methodsThis is a retrospective review of all patients who underwent primary TKA using the K-Mod dynamic congruence implant (Gruppo Bioimpianti, Peschiera Borromeo, Milan, Italy) between 2012 and 2013 at a single institution. A total of 339 patients (351 knees) were included with a mean age of 74 years (range 41-89). The Knee Society score, the global range of movement, the Western Ontario and McMaster Universities Osteoarthritis score, Forgotten Joint score, and the short-term form 12 health survey were collected. FJS and SF-12 were collected only post-operatively. Radiographic outcomes were evaluated according to the Knee Society's roentgenographic evaluation system. Kaplan-Meyer (KM) curves were performed to evaluate implant survivorship. A two-tailed paired t test was performed to evaluate the differences between pre-operative and post-operative score.
resultsA total 297 patients (315 knees) were available for clinical and radiographic analysis, and the mean follow-up was 66.4 months. A total of 17 patients (17 knees 5.4%) experienced a post-operative complication, and a reoperation was performed in five patients (5 knees 1.6%). Four patients had a periprosthetic joint infection, and two patients had a post-traumatic periprosthetic femoral fracture. The KM survivorship at five years was 98.2% (95% CI 0.96 to 0.99) for revision for any reason. There was a statistically significant improvement (p < 0.05) in all the objective and subjective outcomes measured.
conclusionThe K-Mod dynamic congruence design has shown an excellent clinical, radiographic, and patient-reported outcome in primary TKAs.
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