Evidence map›Paper›PMID 36629434›Full record

ArticleThe American journal of sports medicine2023

Clinical Effect of Isolated Lateral Closing Wedge Distal Femoral Osteotomy Compared to Medial Opening Wedge High Tibial Osteotomy for the Correction of Varus Malalignment: A Propensity Score-Matched Analysis.

Marco-Christopher Rupp, Felix Lindner, Philipp W Winkler, Lukas N Muench, Julian Mehl, Andreas B Imhoff, Sebastian Siebenlist, Matthias J Feucht

Open access · hybridAbstract read
In one paragraph

Article in The American journal of sports medicine, 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
3.2field-weighted citation impact, top 9% 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, 10 citations in OpenAlex.

  1. Distal Femoral Varus Osteotomy in Valgus Knee With Lateral Compartment Osteoarthritis: A Systematic Review.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
    Pooled it
  2. Article
  3. Review
  4. Article
  5. [Biomechanical study of three-dimensional printed filler block design in open wedge high tibial osteotomy].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2024
    Article
  6. 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

8 authors at 2 institutions in 1 country.

Marco-Christopher RuppDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.ORCID 0000-0001-7899-6299
Felix LindnerDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.
Philipp W WinklerDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.
Lukas N MuenchDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.
Julian MehlDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.
Andreas B ImhoffDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.ORCID 0000-0001-5085-6446
Sebastian SiebenlistDepartment of Orthopaedic Sports Medicine, School of Medicine, Technical University of Munich, Munich, Germany.
Matthias J FeuchtOrthopaedic Clinic Paulinenhilfe, Diakonie-Hospital, Stuttgart, Germany.
Technical University of Munich · DEUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent evidence questions the role of medial opening wedge high tibial osteotomy (mowHTO) in the correction of femoral-based varus malalignment because of the potential creation of an oblique knee joint line. However, the clinical effectiveness of alternatively performing an isolated lateral closing wedge distal femoral osteotomy (lcwDFO), in which the mechanical unloading effect in knee flexion may be limited, is yet to be confirmed. PURPOSE/HYPOTHESIS: The purpose of this article was to compare clinical outcomes between patients undergoing varus correction via isolated lcwDFO or mowHTO, performed according to the location of the deformity, in a cohort matched for confounding variables. It was hypothesized that results from undergoing isolated lcwDFO for symptomatic varus malalignment would not significantly differ from the results after mowHTO. STUDY

designCohort study; Level of evidence, 3.

methodsConsecutive patients who underwent isolated mowHTO or lcwDFO according to a tibial- or femoral-based symptomatic varus deformity between January 2010 and October 2019 were enrolled. Confounding factors, including age at surgery, sex, body mass index, preoperative femorotibial axis, and postoperative follow-up, were matched using propensity score matching. The International Knee Documentation Committee (IKDC) Subjective Knee Form, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Lysholm score, Tegner Activity Scale, and visual analog scale (VAS) for pain were collected preoperatively and at a minimum of 24 months postoperatively.

resultsOf 535 knees assessed for eligibility, 50 knees (n = 50 patients, n = 25 per group) were selected by propensity score matching. Compared with preoperatively, both the mowHTO group (IKDC, 55.1 ± 16.5 vs 71.3 ± 14.7,

conclusionPerforming both mowHTO or lcwDFO yields significant improvement in clinical outcomes if performed at the location of the deformity of varus malalignment. These findings confirm the clinical effectiveness of performing an isolated lcwDFO in femoral-based varus malalignment, which is comparable with that of mowHTO in the correction of varus malalignment.

Indexed as

Osteoarthritis, KneeCohort StudiesHumansKnee JointOsteotomyPropensity ScoreRetrospective StudiesTibiaTreatment Outcomedistal femoral osteotomyhigh tibial osteotomyjoint line obliquitylocation of deformityvarus malalignment

Identifiers

PMID36629434
PMCPMC9909033
OpenAlexW4315620566

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.