Evidence map›Paper›PMID 40622119›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2026

Age at the time of surgery does not compromise the outcome of deepening trochleoplasty: Results from under and over 30 years old.

Danko Dan Milinkovic, Felix Zimmermann, Julian Fluegel, Sebastian Schmidt, Peter Balcarek

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Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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0cells of the map it votes in
2citing papers in PubMed
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1 · What the graph read from 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.

2 · The registry

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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

2 citing papers in PubMed.

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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.

Danko Dan MilinkovicCenter for Musculoskeletal Surgery, Charité-University Medicine, Berlin, Germany.ORCID https://orcid.org/0000-0002-0672-2640
Felix ZimmermannArcus Sportklinik, Pforzheim, Germany.
Julian FluegelArcus Sportklinik, Pforzheim, Germany.
Sebastian SchmidtDepartment of Orthopeadic and Trauma Surgery, University Medical Centre Mannheim, Medical University Mannheim, University of Heidelberg, Mannheim, Germany.
Peter BalcarekArcus Sportklinik, Pforzheim, Germany.ORCID https://orcid.org/0000-0002-9934-1766

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to evaluate whether age at the time of surgery influences patient-reported outcome measures (PROMs) in patients undergoing tailored surgical treatment for lateral patellar dislocation (LPD), including deepening trochleoplasty (TP).

methodsThis retrospective cohort study used a prospectively maintained database. The Banff Patella Instability Instrument 2.0 (BPII 2.0) and a numerical analogue scale (0-10) for patellofemoral pain (PFP) and subjective knee joint function were used to assess patients' disease-specific quality of life before and after surgery. Preoperative cartilage status was evaluated via the semiquantitative Area Measurement and Depth & Underlying Structures (AMADEUS) scoring system.

resultsTwenty-nine patients (m/f 4/25) were ≥30 years of age (mean: 35.3; range: 30-51) and formed the study group (SG), and 127 patients (m/f 39/88) were <30 years of age (mean: 20.4; range: 11-29) and formed the control group (CG). The evaluation was performed at a mean of 30 ± 13.2 (SG) and 33.1 ± 13.3 months (CG) post-operatively (p = 0.27). The BPII 2.0 increased from 48.7 ± 21.4 to 85.4 ± 10.7 points (p < 0.0001) (SG) and from 44 ± 20.6 to 78.6 ± 18.4 points (p < 0.0001) (CG), without any significant difference between the groups at the final follow-up (p = 0.24). PFP and subjective knee joint function also improved significantly in both groups (p < 0.0001; p < 0.0001), without any significant difference between the groups at the final follow-up (p = 0.08; p = 0.3). In the SG and the CG, 88.2% and 89.7% of patients, respectively, achieved an MCID of 10 points calculated for the BPII 2.0 (p = 0.99), and no correlation was found for 'age' or any evaluated post-operative PROM (all p > 0.1). The AMADEUS scores were 80.1 ± 15 points (CG) and 82.1 ± 14.2 points (SG) (p = 0.57), respectively.

conclusionDeepening TP, as part of a tailored surgical treatment plan for recurrent LPD, yielded satisfying results, irrespective of patient age at the time of surgery. LEVEL OF EVIDENCE: Level III.

Indexed as

Patellar DislocationAdolescentAdultAge FactorsChildFemaleHumansJoint InstabilityMaleMiddle AgedPain MeasurementPatient Reported Outcome MeasuresQuality of LifeRetrospective StudiesTreatment OutcomeYoung AdultageAMADEUSBPII 2.0cartilagepatellar instabilityPROMstrochleoplasty

Identifiers

PMID40622119
PMCPMC13266938

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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.