Evidence map›Paper›PMID 33625541›Full record

ArticleArchives of orthopaedic and trauma surgery2021

Lateral trochlear lengthening osteotomy.

Petros Ismailidis, Christian Egloff, Corina Nüesch, Annegret Mündermann, Geert Pagenstert

Registry-linked trialOpen access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04378491 (Tro_Le_Tomy - Clinical and Functional Outcome After Lateral Trochlear Lengthening Osteotomy), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 38% 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.

NCT04378491 completednot on this map

Tro_Le_Tomy - Clinical and Functional Outcome After Lateral Trochlear Lengthening Osteotomy

TypeobservationalSponsorUniversity Hospital, Basel, SwitzerlandRan2020 to 2020Enrolled6ConditionsPatellar InstabilityArmsCollection of clinical measurements, Collection of data for muscle strength, Collection of EMG Data, Collection of Clinical Scores, Collection of Imaging Data - Radiological measurements
3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 10 citations in OpenAlex.

  1. 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

5 authors at 2 institutions in 1 country.

Petros Ismailidis *Department of Orthopaedics and Traumatology, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland. petrosismailidis@gmail.com.ORCID http://orcid.org/0000-0003-1551-7902
Christian Egloff *Department of Orthopaedics and Traumatology, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
Corina NüeschDepartment of Orthopaedics and Traumatology, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
Annegret MündermannDepartment of Orthopaedics and Traumatology, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
Geert PagenstertDepartment of Clinical Research, University of Basel, Schanzenstrasse 55, 4056, Basel, Switzerland.
University of Basel · CHUniversity Hospital of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe purpose of this study was to describe the indications and technical aspects as well as evaluate the clinical and functional outcome of lengthening osteotomy of the lateral trochlear ridge in patients with patellofemoral pain and/or patella instability and presence of trochlear dysplasia Dejour type A or lack of Dejour type dysplasia and short lateral articular trochlea. MATERIALS AND

methodsSix consecutive adult patients were treated with a lateral trochlear lengthening osteotomy. Five patients received a concomitant medial patellofemoral ligament reconstruction. Three patients had prior patella stabilization surgeries. Trochlea dysplasia (Dejour classification), Caton-Dechamps index, tibial tubercle trochlear groove (TT-TG) distance, patellar tilt and lateral condylar index were measured in preoperative MRIs. Clinical and functional evaluation included the Kujala Anterior Knee Pain Scale, the Lysholm Knee Score, the Tegner Activity Score, a subjective evaluation form and isokinetic muscle strength.

resultsFour patients had a Dejour type A dysplasia, two patients had no dysplasia. The mean (range) Caton-Dechamps index was 1.09 (0.95-1.16), TT-TG distance 10.9 mm (9.2-15.6 mm), patellar tilt 15° (4-32°) and lateral condylar index 82.0% (74-90%). One patient was lost to follow up, all others were followed for 2-5 years. All patients were satisfied with the clinical outcome. The Lysholm score increased from 55 (37-79) to 89 (76-100), the Tegner activity score from 3.6 (2-6) to 5.6 (5-7). The Kujala score postoperative was 90 (75-96). Some but not all patients had full strength recovery compared to the contralateral leg.

conclusionWe recommend measuring the lateral condylar index and considering the indication of a lateral trochlear lengthening osteotomy as an additional or isolated procedure in selected patients with trochlear dysplasia Dejour type A or lack of dysplasia and short lateral articular trochlea depending on the extent of the patellar instability. LEVEL OF EVIDENCE: Level IV, Case Series. TRIAL REGISTRATION NUMBER: NCT04378491, clinicaltrials.gov, May 7, 2020.

Indexed as

Joint InstabilityPatellar DislocationPatellofemoral JointAdultHumansKnee JointLigaments, ArticularOsteotomyPatellaPatella instabilityPatellofemoral painTrochlear lengtheningTrochlear osteotomy

Identifiers

PMID33625541
PMCPMC8437866
OpenAlexW3133378877

What OpenQuestion holds

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Registered trials

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.