Evidence map›Paper›PMID 26704792›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2016

Patella position is not a determinant for anterior knee pain 10 years after balanced gap total knee arthroplasty.

Albert H van Houten, Petra J C Heesterbeek, Ate B Wymenga

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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 28 citations in OpenAlex.

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  10. Patellar component size effects patellar tilt in total knee arthroplasty with patellar resurfacing.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Article
  11. Patellar facet ratio affects knee pain, stair climbing and stair descent after TKA without patellar resurfacing.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020
    Article
  12. Role of positioning of femoral component in the anterior-posterior direction on postoperative anterior pain in TKA.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2020
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  13. Article
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  15. Review
  16. Pseudo-patella baja: a minor yet frequent complication of total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Article
  17. Article
  18. Superior long-term survival for fixed bearing compared with mobile bearing in ligament-balanced total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Albert H van HoutenSint Maartenskliniek Nijmegen, Hengstdal 3, 6522 JV, Nijmegen, The Netherlands. albert.h.vanhouten@gmail.com.
Petra J C HeesterbeekSint Maartenskliniek Nijmegen, Hengstdal 3, 6522 JV, Nijmegen, The Netherlands.
Ate B WymengaSint Maartenskliniek Nijmegen, Hengstdal 3, 6522 JV, Nijmegen, The Netherlands.
Sint Maartenskliniek · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIncidence of anterior knee pain after total knee arthroplasty (TKA) is reported to be between 4 and 49 %. The incidence of AKP at long-term follow-up and possible determinants after cruciate cruciate-retaining TKA were investigated.

methodsA 10-year follow-up of a cohort of 55 patients (63 TKAs), who received the balanSys™ cruciate-retaining total knee system (Mathys Ltd, Bettlach, Switzerland) between 1999 and 2002, was performed. Patients had undergone the balanced gap technique, with either a fixed bearing or an AP-glide bearing. Standardised diagnostic questions regarding AKP were collected and categorised into two groups: those with and without AKP. The lateral patellar tilt, patellar displacement measurement and modified Insall-Salvati ratio were used for patella position evaluation on skyline radiographs. The Knee Society Score (KSS), the Knee Osteoarthritis Outcome Score (KOOS) and Numerical Rating Scales (NRS) for pain and satisfaction were obtained at follow-up.

resultsSixteen patients in the study population experienced AKP. Incidence of AKP (fixed bearing 13/44; AP-glide bearing baring 3/17) was not dependent on type of insert (n.s.). There were no statistical differences in patella position and tibiofemoral contact point between the AKP group and the no AKP group (n.s.). KSS, KOOS, NRS-pain and NRS-satisfaction were significantly lower for the patients with AKP (all p < 0.05).

conclusionTwenty-six percentage of the patients experienced AKP 10 years after balanced gap TKA. Postoperative patella positioning was not found to be a determinant for anterior knee pain after TKA. However, patellar displacement does not seem completely favourable. Moreover, type of bearing was not found a determinant for AKP at long-term follow-up. LEVEL OF EVIDENCE: Lower quality prospective cohort study (<80 % follow-up, patients enrolled at different time points in disease), Level II.

Indexed as

AgedArthroplasty, Replacement, KneeFemaleFollow-Up StudiesHumansKnee JointMaleMiddle AgedOsteoarthritis, KneePatellaPostoperative PainProspective StudiesRadiographyTreatment OutcomeAnterior knee painBalanced gap techniqueKnee arthroplastyPatella position

Identifiers

PMID26704792
OpenAlexW2207245667

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.