Evidence map›Paper›PMID 29189881›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2018

Satisfactory functional and radiological outcomes can be expected in young patients under 45 years old after open wedge high tibial osteotomy in a long-term follow-up.

Michael E Hantes, Prodromos Natsaridis, Antonios A Koutalos, Yohei Ono, Nikolaos Doxariotis, Konstantinos N Malizos

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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
7.2field-weighted citation impact, top 2% 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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Pooled it
  2. Good long-term survival and patient-reported outcomes after high tibial osteotomy for medial compartment osteoarthritis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
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  16. 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
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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

6 authors at 2 institutions in 2 countries.

Michael E HantesDepartment of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessalia, Mezourlo, 41110, Larissa, Greece. hantesmi@otenet.gr.
Prodromos NatsaridisDepartment of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessalia, Mezourlo, 41110, Larissa, Greece.
Antonios A KoutalosDepartment of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessalia, Mezourlo, 41110, Larissa, Greece.
Yohei OnoDepartment of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Nikolaos DoxariotisDepartment of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessalia, Mezourlo, 41110, Larissa, Greece.
Konstantinos N MalizosDepartment of Orthopaedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessalia, Mezourlo, 41110, Larissa, Greece.
University Hospital of Larissa · GRNagoya University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo report the long-term outcomes of medial open wedge high tibial osteotomy (MOWHTO) for the treatment of medial compartment knee osteoarthritis in patients younger than 45 years old. It was hypothesized that the correction of knee alignment would result in preservation of knee function in a long-term follow-up.

methodsPatients under 45 years old, who underwent MOWHTO for symptomatic medial compartment knee osteoarthritis between 2001 and 2005 were retrospectively reviewed after a minimum of 10 years. The osteotomy was performed utilizing a locking plate without the use of bone graft. Patients were evaluated pre- and postoperatively using the International Knee Documentation Committee Score, the Oxford Knee Score, the Knee injury Osteoarthritis Outcome Score and the Short Form-12 Score. Standardized standing whole-limb radiographs were also obtained to assess mechanical tibiofemoral angle (mTFA) and the grade of osteoarthritis.

resultsA total of 20 patients (18 males, 2 females, mean age 35.4 years) with a mean follow-up of 12.3 years were included in the study. During the follow-up period, one patient required conversion to total knee replacement (95% survival rate). All clinical outcome scores (IKDC, KOOS, OKS, and SF-12) significantly improved postoperatively (p < 0.05), with no significant deterioration over time. Preoperative varus alignment with an mTFA of - 5.8 ± 2.4° was corrected to 2.5 ± 1.9° immediately after surgery (p < 0.05), and remained 2.2 ± 1.7° at the last follow-up. Furthermore, no significant radiographic progression of osteoarthritis was observed.

conclusionsMWOHTO with a locking plate is an effective joint preservation method to treat medial compartment OA in active patients less than 45 years. Clinical and radiological results are satisfactory and the survival rate is 95%, 12 years after the procedure. LEVEL OF EVIDENCE: Level IV therapeutic, retrospective, cohort study.

Indexed as

AdultBone MalalignmentBone PlatesFemaleFollow-Up StudiesHumansKnee JointMaleOsteoarthritis, KneeOsteotomyRecovery of FunctionRetrospective StudiesTibiaTreatment OutcomeHigh tibial osteotomyKnee alignmentLong termOpen wedgeOsteoarthritisTomoFixYoung patients

Identifiers

PMID29189881
OpenAlexW2771948886

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Registered trials

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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.