SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019
Similar postoperative patient-reported outcome in both second generation patellofemoral arthroplasty and total knee arthroplasty for treatment of isolated patellofemoral osteoarthritis: a systematic review.
Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- Robotic-assisted patellofemoral arthroplasty shows superior functional outcomes and lower revision rates compared to conventional technique: a systematic review and meta-analysis.Archives of orthopaedic and trauma surgery · 2026Pooled it
- The short-term effectiveness and safety of second-generation patellofemoral arthroplasty and total knee arthroplasty on isolated patellofemoral osteoarthritis: a systematic review and meta-analysis.Journal of orthopaedic surgery and research · 2021Pooled it
- Excellent Short-Term Outcomes After Kinematic Alignment, Medial-Pivot Total Knee Arthroplasty for Isolated Patellofemoral Osteoarthritis.Arthroplasty today · 2026Article
- [Knee arthroplasty in isolated patellofemoral osteoarthritis : A critical review of the best options].Orthopadie (Heidelberg, Germany) · 2025Review
- Outcomes After Patellofemoral Arthroplasty With the Arthrex iBalance-A Third Generation Implant.Arthroplasty today · 2025Article
- Evaluation of serum vitamin D levels and their impact on functional outcomes among patients undergoing total knee arthroplasty.Bioinformation · 2025Article
- The landscape of patellofemoral arthroplasty research: a bibliometric analysis.Arthroplasty (London, England) · 2023Article
- Current outcomes of patellofemoral arthroplasty for isolated patellofemoral arthritis - A narrative review.Journal of orthopaedics · 2023Article
- Establishing minimal detectable change thresholds for the international knee documentation committee and Kujala scores at one and two years after patellofemoral joint arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Internal Rotation, Varus, and Anterior Femoral Component Malalignments Adversely Affect Patellofemoral Joint Kinematics in Patellofemoral Arthroplasty.Arthroplasty today · 2023Article
- Patellofemoral arthroplasty: obesity linked to high risk of revision and progression of medial tibiofemoral osteoarthritis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Patellofemoral arthroplasty in combination with high tibial osteotomy can achieve good outcome for patients with medial-patellofemoral osteoarthritis.Frontiers in surgery · 2022Article
- Treatment of Unicompartmental Cartilage Defects of the Knee with Unicompartmental Knee Arthroplasty, Patellofemoral Partial Knee Arthroplasty or Focal Resurfacing.Life (Basel, Switzerland) · 2021Article
- [Expert consensus on surgical treatment of patellofemoral osteoarthritis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2021Article
- Preoperative patellofemoral anatomy affects failure rate after isolated patellofemoral inlay arthroplasty.Archives of orthopaedic and trauma surgery · 2020Article
- The Present Situation of Patellofemoral Arthroplasty in the Management of Solitary Patellofemoral Osteoarthritis.The archives of bone and joint surgery · 2020Review
- Early outcomes of an anatomic trochlear-cutting patellofemoral arthroplasty: patient selection is key.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
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 at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionDue to inconsistent results and high failure rates, total knee arthroplasty (TKA) is more often used to treat isolated patellofemoral osteoarthritis (PFOA) despite the theoretical advantage of patellofemoral arthroplasty (PFA). It is perceived that second-generation PFA may have improved the outcomes of surgery. In this systematic review, the primary aim was to compare outcomes of second-generation PFA and TKA by assessment of patient-reported outcome measures (PROMs).
methodsA systematic search was made in PubMed, Medline, Embase, Cinahl, Web of Science, Cochrane Library and MeSH to identify studies using second-generation PFA implants or TKA for treatment of PFOA. Only studies using The American Knee Society (AKSS), The Oxford Knee Score (OKS) or The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) to report on PROMs were included.
resultsThe postoperative weighted mean AKSS knee scores were 88.6 in the second-generation PFA group and 91.8 in the TKA group. The postoperative weighted mean AKSS function score was 79.5 in the second-generation PFA group and 86.4 in the TKA group. There was no significant difference in the mean AKSS knee or function scores between the second-generation PFA group and the TKA group. The postoperative weighted mean OKS score was 36.7 and the postoperative weighted mean WOMAC score was 24.4. The revision rate was higher in the second-generation PFA group (113 revisions [8.4%]) than in the TKA group (3 revisions [1.3%]). Progression of OA was most commonly noted as the reason for revision of PFA, and it was noted in 60 cases [53.1%]; this was followed by pain in 33 cases [29.2%].
conclusionExcellent postoperative weighted mean AKSS knee scores were found in both the second-generation PFA group and in the TKA group, suggesting that both surgical options can result in a satisfying patient-reported outcome. Higher revision rates in the second-generation PFA studies may in part be due to challenges related to patient selection. Based on evaluation of PROMs, the use of second-generation PFA seems to be an equal option to TKA for treatment of isolated PFOA in appropriately selected patients. Hopefully, this can be considered by physicians in their daily clinical work. LEVEL OF EVIDENCE: IV.
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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.