Evidence map›Paper›PMID 37515658›Full record

ArticleJournal of experimental orthopaedics2023

Open-wedge high tibial osteotomy with a slight valgus correction from neutral limb alignment achieves clinical improvements comparable with those for knees with varus deformity.

Junya Itou, Umito Kuwashima, Masafumi Itoh, Ken Okazaki

Abstract read
In one paragraph

Article in Journal of experimental orthopaedics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Clinical Outcomes Following Medial Opening Wedge High Tibial Osteotomy in Patients With Medial Compartment Grade 4 Chondromalacia.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
    Article
  4. Article
  5. Medial open wedge high tibial osteotomy is a viable option in young patients with advanced arthritis in a long-term follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Article
  6. Article
  7. Article
  8. 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

4 authors.

Junya ItouDepartment of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
Umito KuwashimaDepartment of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
Masafumi ItohDepartment of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan.
Ken OkazakiDepartment of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku-Ku, Tokyo, 162-8666, Japan. okazaki.ken@twmu.ac.jp.ORCID http://orcid.org/0000-0003-1274-8406

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe effect of open-wedge high tibial osteotomy (OWHTO) on the preoperative neutral alignment of the knee is unknown. The purpose of this study was to clarify the clinical outcome of OWHTO with neutral alignment, defined as within 4 degrees of varus.

methodsThis retrospective study included 72 knees with varus that underwent medial OWHTO. The knees were divided according to the preoperative hip-knee-ankle angle into a neutral alignment group (≤ 4° of varus alignment) and a varus alignment group (> 4° of varus alignment). The Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Forgotten Joint Score-12 (FJS-12) were evaluated preoperatively and during at least 2 years of follow-up postoperatively.

resultsThere were no significant differences between the preoperative FJS-12 (17.9 versus 23.7; p = 0.16) and postoperative FJS-12 (57.3 versus 60.6; p = 0.52) or KOOS subscale scores (p > 0.05) in the neutral alignment group or the varus alignment group. Each group had a mean change in the KOOS subscale scores that exceeded the minimum clinically important difference.

conclusionThe short-term clinical results of OWHTO for neutral alignment were as favourable as those for varus malalignment. LEVEL OF EVIDENCE: IV.

Indexed as

AlignmentHigh tibial osteotomyMinimum clinically important differenceNeutral alignmentPatient-reported outcome measures

Identifiers

PMID37515658
PMCPMC10386984

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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.