ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2021
Patellar component size effects patellar tilt in total knee arthroplasty with patellar resurfacing.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06811506 (Effect of Different Size of Patellar Resurfacing on Patellar Crepitus of the One-stage Bilateral Total Knee Arthroplasty), which is not on this map. Cited by 12 papers.
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.
Effect of Different Size of Patellar Resurfacing on Patellar Crepitus of the One-stage Bilateral Total Knee Arthroplasty: a Prospective Randomize Control Trial.
Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- No difference between resurfaced and non-resurfaced patellae with a modern prosthesis design: a prospective randomized study of 250 total knee arthroplasties.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Trial
- Patellar tracking and patellar tilt in kinematic versus mechanical knees.Journal of experimental orthopaedics · 2026Article
- Personalized alignment in total knee arthroplasty reduces patellar tilt: A retrospective study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- 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
- Femoral and Patellar Radiographic Metrics Are Improved With Robotic-Assisted Total Knee Arthroplasty.Arthroplasty today · 2025Article
- Osteotomy Correction Angle Cut-off Points Can Guide the Operation to Prevent a Significant Decrease in Patella Height.Orthopaedic surgery · 2024Article
- Relationships between position of patellar ridge high point and morphology of resected surface for patellar resurfacing in total knee arthroplasty.Quantitative imaging in medicine and surgery · 2023Article
- Factors that impact the patellofemoral contact stress in the TKA: a review.Arthroplasty (London, England) · 2023Review
- Similar survival rate but lower functional outcomes following TKA in the elderly people compared to younger patients: analysis of a posterior stabilised implant with minimum 5-year follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- [Digital study on the relationship between position of patellar high point and shape of osteotomy surface in Chinese].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2022Article
- Lateral approach total knee arthroplasty achieves equivalent patellar tracking in severe valgus deformity compared to mild valgus deformity.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Musculoskeletal Multibody Simulation Analysis on the Impact of Patellar Component Design and Positioning on Joint Dynamics after Unconstrained Total Knee Arthroplasty.Materials (Basel, Switzerland) · 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
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePatellar component positioning and patellofemoral kinematics are of great importance in total knee arthroplasty (TKA). The factors influencing patellar tilt are femoral rotation and lateral patellar release. However, the effect of patellar component size remains unknown. The aim of this study was to evaluate the intra-operative risk factors for patellar tilt, particularly the effect of the patellar component size. The hypothesis was that increasing the patellar component size would reduce the risk of patellar tilt.
methods878 primary TKAs with patellar resurfacing were included between January 2015 and October 2018. Analysis was performed at 1-year postoperatively on patients categorized into two groups: patellar tilt (PT) and no patellar tilt (NPT). A multivariate analysis was performed for the effect of patellar component size, femoral rotation, femoral overbuilding, patellar thickness and lateral release on patellar tilt risk. Secondary analysis was performed for any difference in clinical outcomes and revision rates between groups.
resultsMultivariate analysis showed that increasing the patellar component size decreased the risk of patellar tilt by 37% (p < 0.001). Placing the femoral component at 3° of external rotation decreased the risk of patellar tilt by 67% (p < 0.001). Secondary analysis showed better clinical outcomes in the NPT group, especially regarding global satisfaction, and KSS objective and subjective scores. The revision for any cause was less in the NPT group (p = 0.019). The cause for TKA revision was related to the patellar in 11% of cases in the NPT group and 65% in the PT group (p < 0.001).
conclusionIncreased patellar component size and positioning the femoral component in external rotation decreases the risk of patellar tilt, improves clinical outcomes and decreases the rate of surgical revision. LEVEL OF EVIDENCE: III.
Indexed as
Identifiers
What 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.