ArticleMedical science monitor : international medical journal of experimental and clinical research2011
Pseudo-patella baja after total knee arthroplasty.
Article in Medical science monitor : international medical journal of experimental and clinical research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 2 of them syntheses that pooled it.
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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
34 citing papers in PubMed, 2 syntheses or guidelines pooled it, 72 citations in OpenAlex.
- The negative effect of joint line elevation after total knee arthroplasty on outcome.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Pooled it
- Efficacy and Safety of Tranexamic Acid in Bilateral Total Knee Replacement: A Meta-Analysis and Systematic Review.Medical science monitor : international medical journal of experimental and clinical research · 2015Pooled it
- Change in patellar height in medial and lateral unicompartmental knee arthroplasty: a clinical trial.Archives of orthopaedic and trauma surgery · 2024Trial
- Patella Baja Incidence, Risk Factors and Motion After Revision Total Knee Arthroplasty.Arthroplasty today · 2025Article
- Predictors of post-operative decline in knee flexion after cruciate-retaining total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
- The effect of surgery for multipleligament knee injuries on patellar position and patellofemoral function: a retrospective study.Journal of orthopaedic surgery and research · 2025Article
- Clinical Study and Finite Element Analysis on the Effects of Pseudo-Patella Baja After TKA.Orthopaedic surgery · 2025Article
- An MRI-Derived Formula for Estimating the Native Joint Line Position in the Presence of Distal Femoral Bone Loss.Cureus · 2024Article
- Patellar Resurfacing Is Not a Risk Factor for Postoperative Patella Baja in Total Knee Arthroplasty.Arthroplasty today · 2024Article
- Does Patellar Height Influence Range of Motion and Anterior Knee Pain after Distal Femur Endoprosthesis Reconstruction?Journal of clinical medicine · 2024Article
- Patella Baja with Complete Quadriceps Tendon Rupture.Orthopedic reviews · 2024Article
- Influence of Changes in Patella Indices on Total Knee Replacement Surgery Outcomes.Orthopedic reviews · 2024Article
- Additional Distal Femoral Resection Minimally Improves Terminal Knee Extension: A Systematic Review and Meta-Regression Challenging the Dogma.Arthroplasty today · 2023Article
- Infection and Instability Increasing the Risk of Patella Baja and Pseudo-Patella Baja after Revision Total Knee Arthroplasty.Clinics in orthopedic surgery · 2023Article
- Patella baja after intramedullary nailing of tibial fractures, using an infrapatellar/transtendinous approach, predicts worse patient reported outcome.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2022Article
- Evaluation of patella height in native knees and arthroplasty: an instructional review.SICOT-J · 2022Article
- Article
- [Extended access to revision knee replacement : Intraoperative possibilities for improved joint exposure in complex knee arthroplasty procedures].Der Orthopade · 2021Review
- Extracellular vesicles as novel approaches for the treatment of osteoarthritis: a narrative review on potential mechanisms.Journal of molecular histology · 2021Review
- [Biomechanical research on effects of pseudo-patella baja on stress of patellofemoral joint after total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOne of the complications of total knee arthroplasty (TKA) which has not yet been directly addressed is pseudo-patella baja (PPB). True patella baja (PB) is present when the length of the patellar tendon becomes shorter. PPB is present when the patella tendon is not shortened, but the level of the joint line is elevated. This study was conducted to assess PPB in TKA. MATERIAL/
methodsSixty patients who had had a primary TKA at our center between 1995 and 2005 were included. The average follow-up was 27.5 months. The Knee Society Scoring (KSS), lateral knee x-rays and the Blackburne-Peel index were used for assessments.
resultsOut of the 60 patients, 43 (72%) demonstrated no joint line elevation or patellar tendon shortening (group A). Fifteen patients (25%) had joint line elevation (group B), and both PB and PPB were present in 2 (3%) patients (group C). KSS was lower in groups B and C compared with group A, but this difference was not statistically significant. The average range of motion (ROM) in group A was significantly higher compared with either group B or C, and patients in groups B and C showed significantly more severe pain compared with group A (P<0.001).
conclusionsPPB is not an uncommon finding after TKA and is associated with a statistically significant decrease in ROM and an increase in pain. Furthermore, KSS in the PPB group was less than in patients without PPB, although the difference was not statistically meaningful.
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Registered trials
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