Evidence map›Paper›PMID 38348440›Full record

ReviewJournal of children's orthopaedics2024

Does patella lowering as part of multilevel surgery improve knee kinematics in children with cerebral palsy and crouch gait? A meta-analysis of comparative studies.

María Galán-Olleros, Sergio Lerma-Lara, Beltran Torres-Izquierdo, Ana Ramírez-Barragán, Rosa M Egea-Gámez, Pooya Hosseinzadeh, Ignacio Martínez-Caballero

Abstract readReview
In one paragraph

Review in Journal of children's orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Combined hamstrings lengthening and patellar tendon retensioning for neurogenic knee flexion in spastic diplegia.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025
    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

7 authors.

María Galán-OllerosNeuro-Orthopaedic Unit, Orthopaedic Surgery and Traumatology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.ORCID https://orcid.org/0000-0001-9074-9215
Sergio Lerma-LaraDepartament of Physiotherapy, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain.
Beltran Torres-IzquierdoDepartment of Orthopaedic Surgery, Washington University School of Medicine, Saint Louis, MO, USA.
Ana Ramírez-BarragánNeuro-Orthopaedic Unit, Orthopaedic Surgery and Traumatology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.
Rosa M Egea-GámezNeuro-Orthopaedic Unit, Orthopaedic Surgery and Traumatology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.
Pooya HosseinzadehDepartment of Orthopaedic Surgery, Washington University School of Medicine, Saint Louis, MO, USA.
Ignacio Martínez-CaballeroNeuro-Orthopaedic Unit, Orthopaedic Surgery and Traumatology Department, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To evaluate differences in knee kinematic outcomes of patellar-lowering surgery, specifically patellar tendon advancement or patellar tendon shortening, compared with no-patellar-lowering surgery in multilevel surgery for children with cerebral palsy and crouch gait. Methods: Four databases were searched to retrieve studies published from inception until 2023. Three reviewers independently screened for studies with observational or randomized control designs, comparing two groups of patients with cerebral palsy and crouch gait who underwent multilevel surgery (with patellar-lowering surgery versus no-patellar-lowering surgery), where various gait analysis outcomes were reported (CRD42023450692). The risk of bias was assessed with the Risk Of Bias In Non-randomised Studies - of Interventions (ROBINS-I) tool. Results: Seven studies (249 patients and 368 limbs) met the eligibility criteria. Patients undergoing patellar-lowering surgery demonstrated statistically significant improvements in knee flexion at initial contact (mean difference = -6.39; 95% confidence interval = [-10.4, -2.75]; Conclusions: Overall, the combination of patellar-lowering surgery with multilevel surgery demonstrated superior improvements in stance-phase knee kinematics compared with multilevel surgery alone, despite an increase in anterior pelvic tilt and a longer-term knee flexion reduction during the swing phase. Level of evidence: Level III, Systematic review of level III studies.

Indexed as

Cerebral palsycrouch gaitgait analysisknee extensor lagknee flexion deformitypatella altapatellar loweringpatellar tendonquadriceps insufficiencytibiofemoral joint

Identifiers

PMID38348440
PMCPMC10859119

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.