Evidence map›Paper›PMID 35616703›Full record

SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022

MPFL reconstruction results in lower redislocation rates and higher functional outcomes than rehabilitation: a systematic review and meta-analysis.

Dan Cohen, NhatChinh Le, Alexander Zakharia, Benjamin Blackman, Darren de Sa

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 9 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 9 syntheses or guidelines pooled it.

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  15. Management of first-time patellar dislocation: The ESSKA 2024 formal consensus-Part 2.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
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  18. Comparison of double bundle semitendinosus technique and pedicled quadriceps technique in patellar instability.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
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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.

Dan CohenDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, Hamilton, ON, 4E14L8N 3Z5, Canada.
NhatChinh LeDepartment of Medicine, McMaster University, Hamilton, ON, Canada.
Alexander ZakhariaFaculty of Science, McMaster University, Hamilton, ON, Canada.
Benjamin BlackmanFaculty of Health Sciences, McMaster University, Hamilton, ON, Canada.
Darren de SaDivision of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, 1200 Main St West, Hamilton, ON, 4E14L8N 3Z5, Canada. Darren.desa@medportal.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine the effect of early MPFL reconstruction versus rehabilitation on the rate of recurrent patellar dislocations and functional outcomes in skeletally mature patients with traumatic, first-time patellar dislocation.

methodsThree online databases MEDLINE, PubMed and EMBASE were searched from database inception (1946, 1966, and 1974, respectively) to August 20th, 2021 for literature addressing the management of patients sustaining acute first-time patellar dislocations. Data on redislocation rates, functional outcomes using the Kujala score, and complication rates were recorded. A meta-analysis was used to pool the mean postoperative Kujala score, as well as calculate the proportion of patients sustaining redislocation episodes using a random effects model. Quality assessment of included studies was performed for all included studies using the MINORS and Detsky scores.

resultsA total of 19 studies and 1,165 patients were included in this review. The pooled mean redislocation rate in 14 studies comprising 734 patients in the rehabilitation group was 30% (95% CI 25-36%, I

conclusionManagement of acute first-time patellar dislocations with MPFL reconstruction resulted in a lower rate of redislocation of 7% in the reconstruction group vs 30% in the rehabilitation group and a higher Kujala score compared to the rehabilitation group. The information this review provides will help surgeons guide their decision to choose early MPFL reconstruction versus rehabilitation when treating patients with first-time patellar dislocations and may guide future studies on the topic. LEVEL OF EVIDENCE: IV.

Indexed as

Joint DislocationsJoint InstabilityPatellar DislocationPatellofemoral JointHumansKnee JointLigaments, ArticularPatellaDislocationManagementMPFLPatella

Identifiers

PMID35616703

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.