ArticleActa orthopaedica2010
Does patella resurfacing really matter? Pain and function in 972 patients after primary total knee arthroplasty.
Article in Acta orthopaedica, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.
- Circumferential electrocautery of the patella in primary total knee replacement without patellar replacement: a meta-analysis and systematic review.Scientific reports · 2015Pooled it
- A randomized controlled trial comparing patellar retention versus patellar resurfacing in primary total knee arthroplasty: 5-10 year follow-up.BMC research notes · 2012Trial
- Similar incidence and implant survival of multiply revised knee arthroplasties in Norway and Denmark: a register study of the Danish and Norwegian Knee Arthroplasty registries from 1998-2021.Acta orthopaedica · 2026Observational
- Patient-Reported Outcome Measures in High-Risk Medical Device Registries: A Scoping Review.Aesthetic surgery journal. Open forum · 2024Article
- Patellar Resurfacing in Total Knee Arthroplasty, a Never-Ending Controversy; Case Report and Literature Review.Diagnostics (Basel, Switzerland) · 2023Article
- Resection of Infrapatellar Fat Pad during Total Knee Arthroplasty Has No Impact on Postoperative Function, Pain and Sonographic Appearance of Patellar Tendon.Journal of clinical medicine · 2022Article
- Effect of patella resurfacing on functional outcome and revision rate in primary total knee arthroplasty (Review).Experimental and therapeutic medicine · 2022Review
- The predictive factors of secondary patellar resurfacing in computer-assisted total knee arthroplasty. A prospective cohort study.International orthopaedics · 2018Article
- Early aseptic loosening of a mobile-bearing total knee replacement.Acta orthopaedica · 2018Article
- The need for secondary resurfacing is affected by trochlear height in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Article
- Have the Causes of Revision for Total and Unicompartmental Knee Arthroplasties Changed During the Past Two Decades?Clinical orthopaedics and related research · 2017Article
- Patellar resurfacing after endoprosthetic replacement for primary or secondary bone tumors.Annals of translational medicine · 2016Article
- Walking on a compliant surface does not enhance kinematic gait asymmetries after unilateral total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016Article
- Rationale, design and protocol of a longitudinal study assessing the effect of total knee arthroplasty on habitual physical activity and sedentary behavior in adults with osteoarthritis.BMC musculoskeletal disorders · 2016Article
- Similar patient-reported outcomes and performance after total knee arthroplasty with or without patellar resurfacing.Acta orthopaedica · 2016Article
- Secondary patella resurfacing in painful non-resurfaced total knee arthroplasties : A study of survival and clinical outcome from the Norwegian Arthroplasty Register (1994-2011).International orthopaedics · 2016Article
- Patella bone density is lower in knee osteoarthritis patients experiencing moderate-to-severe pain at rest.Journal of musculoskeletal & neuronal interactions · 2016Article
- Evolution of trochlear compartment geometry in total knee arthroplasty.Annals of translational medicine · 2016Article
- Secondary patellar resurfacing following total knee arthroplasty : A cohort study in fifty eight knees with a mean follow-up of thirty one months.International orthopaedics · 2015Article
- Comparison of patellar resurfacing versus preservation in high flexion total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Article
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Authors and funding
5 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeResurfacing of the patella during primary total knee arthroplasty (TKA) is often recommended based on higher revision rates in non-resurfaced knees. As many of these revisions are insertions of a patella component due to pain, and since only patients with a non-resurfaced patella have the option of secondary resurfacing, we do not really know whether these patients have more pain and poorer function. The main purpose of the present paper was therefore to assess pain and function at least 2 years after surgery for unrevised primary non-resurfaced and resurfaced TKA, and secondary among prosthesis brands.
methodsInformation needed to calculate subscales from the knee injury and osteoarthritis outcome score (KOOS) was collected in a questionnaire given to 972 osteoarthritis patients with intact primary TKAs that had been reported to the Norwegian Arthroplasty Register. Pain and satisfaction on visual analog scales and improvement in EQ-5D index score DeltaEQ-5D) were also used as outcomes. Outcomes were measured on a scale from 0 to 100 units (worst to best). To estimate differences in mean scores, we used multiple linear regression with adjustment for possible confounders.
resultsWe did not observe any differences between resurfacing and non-resurfacing in any outcome, with estimated differences of <or= 1.4 units and p-values of > 0.4. There was, however, a tendency of better results for the NexGen implant as compared to the reference brand AGC for symptoms (difference = 4.9, p = 0.05), pain (VAS) (difference = 8.3, p = 0.004), and satisfaction (VAS) (difference = 7.9, p = 0.02). However, none of these differences reached the stated level of minimal perceptible clinical difference.
interpretationResurfacing of the patella has no clinical effect on pain and function after TKA. Differences between the brands investigated were small and they were assumed to be of minor importance.
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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.