SynthesisActa orthopaedica2019
Failure modes of patellofemoral arthroplasty-registries vs. clinical studies: a systematic review.
Synthesis in Acta orthopaedica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04772625 (Failure Analysis of Patellofemoral Arthroplasty), which is not on this map. Cited by 15 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.
Failure Analysis of Patellofemoral Arthroplasty
Who cites it
15 citing papers in PubMed.
- Peg Shearing as a Method of Failure in Highly Cross-Linked Polyethylene Patellar Components Used in Patellofemoral Arthroplasty.Arthroplasty today · 2026Article
- Patellofemoral arthroplasty-patient demographics and revision causes compared with total and medial unicompartmental knee arthroplasty: long-term follow-up data from the Norwegian Arthroplasty Register.Acta orthopaedica · 2025Article
- Surgeon Training and Revision Rates After Patellofemoral Arthroplasty.JAMA network open · 2025Article
- [Patellofemoral joint replacement: onlay or inlay?]Orthopadie (Heidelberg, Germany) · 2025Article
- Outcomes After Patellofemoral Arthroplasty With the Arthrex iBalance-A Third Generation Implant.Arthroplasty today · 2025Article
- High survivorship and excellent functional outcome in third-generation patellofemoral arthroplasty.Journal of experimental orthopaedics · 2025Article
- Current outcomes of patellofemoral arthroplasty for isolated patellofemoral arthritis - A narrative review.Journal of orthopaedics · 2023Article
- Conversion of Patellofemoral Arthroplasty to Robotic-Assisted Total Knee Arthroplasty.Arthroplasty today · 2023Article
- PATELLOFEMORAL KNEE PROSTHESIS - WHY IS IT RARELY USED?Acta clinica Croatica · 2023Review
- The lack of retropatellar resurfacing at index surgery is significantly associated with failure in patients following patellofemoral inlay arthroplasty: a multi-center study of more than 260 patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Article
- Contemporary knee arthroplasty: one fits all or time for diversity?Archives of orthopaedic and trauma surgery · 2021Review
- [Patellofemoral inlay implants-an innovation in patellofemoral joint arthroplasty?]Der Orthopade · 2021Review
- Preoperative patellofemoral anatomy affects failure rate after isolated patellofemoral inlay arthroplasty.Archives of orthopaedic and trauma surgery · 2020Article
- Short-term Revision Risk of Patellofemoral Arthroplasty Is High: An Analysis from Eight Large Arthroplasty Registries.Clinical orthopaedics and related research · 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
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and purpose - Patellofemoral arthroplasty (PFA) has been debated since early studies showed poor implant survival. Recent studies show better results. This review reports failure modes for PFA and investigates differences in data reported from registries and clinical studies. Additionally, we report differences in failure modes among implant designs. Methods - A systematic search was performed in September 2018. All studies and registers describing failure modes of PFA were included and implant design was noted for each revision. Results - This review includes 1,299 revisions of a primary PFA reported in 47 clinical studies and 3 registers. The failure modes were: 42% OA progression, 16% pain, 13% aseptic loosening, 12% surgical error, 4% wear, 2% infection, 2% broken patellar component, 1% stiffness, 1% fracture, and 7% other. The data from registries and cohort studies differed statistically significantly in 7 out of 12 failure modes. Significant differences were found in several failure modes among implant designs. Interpretation - OA progression is the most common failure mode of PFA. There are significant differences in data on failure modes between registers and protocolled studies, notably for surgical error. The implant design significantly influences several of the failure modes. In conclusion, indication, surgical technique, and implant design are important for a successful PFA, and register-based failure modes should be interpreted with caution.
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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.