Evidence map›Paper›PMID 37036473›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023

Functional outcomes after Medial Patellofemoral Ligament Reconstruction show inverted J-shaped relation with Body Mass Index.

N Sharma, L Al-Mouazzen, J H Kuiper, P Gallacher, A Barnett

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 33% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

N SharmaRobert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Oswestry, SY10 7AG, UK. n-sharma@doctors.org.uk.ORCID http://orcid.org/0000-0001-8918-9871
L Al-MouazzenRobert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Oswestry, SY10 7AG, UK.
J H KuiperRobert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Oswestry, SY10 7AG, UK.
P GallacherRobert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Oswestry, SY10 7AG, UK.
A BarnettRobert Jones and Agnes Hunt Orthopaedic Hospital, Gobowen, Oswestry, SY10 7AG, UK.
Robert Jones and Agnes Hunt Orthopaedic Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMedial patellofemoral ligament reconstruction (MPFL-R) is a recognised surgical procedure for the treatment of recurrent patellofemoral instability with excellent outcomes reported. The aim of this study is to determine if body mass index can influence these outcomes.

methodsThis is a single-centre retrospective analysis of a longitudinal patellofemoral database. Patients with recurrent patellar instability, without patellar alta or severe trochlear dysplasia were treated using a MPFL-R between 2015 and 2019 at The Robert Jones & Agnes Hunt Orthopaedic Hospital. The clinical efficacy following surgery was assessed by Kujula, International Knee Documentation Committee Score (IKDC), and EuroQol-5 score (EQ-5D) at baseline and up to 26 months post-operatively; their safety assessed by complication rate and requirement for further surgery. The effect of Body Mass Index (BMI) on clinical outcome was analysed using linear, curvilinear, and segmented models following propensity score weighting.

resultsA total of 97 patients (97 Knees, mean age 25y) were analysed. Of these, 61 patients had a BMI < 30 kg/m

conclusionBMI influences the functional outcomes in MPFL-R with an inverted J-shaped relation, without evidence it affected the complication or re-dislocation rate. In the absence of patella alta and severe trochlear dysplasia, an isolated MPFL reconstruction is a safe and effective procedure to treat patellar instability, with the best functional outcome in patients with a BMI around 20 to 21. LEVEL OF EVIDENCE: Level III.

Indexed as

Bone DiseasesJoint DislocationsJoint InstabilityPatellar DislocationPatellofemoral JointAdultBody Mass IndexHumansLigaments, ArticularPatellaRetrospective StudiesYoung AdultBody Mass IndexMedial patellofemoral ligament reconstructionPatellofemoral instabilityTrochlear dysplasia

Identifiers

PMID37036473
OpenAlexW4363646385

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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.