Evidence map›Paper›PMID 37170106›Full record

ArticleBMC musculoskeletal disorders2023

The gap height in open wedge high tibial osteotomy is not affected by the starting point of the osteotomy.

Moritz Mederake, Georgios Eleftherakis, Daniel Schüll, Fabian Springer, Nicola Maffulli, Filippo Migliorini, Christian Konrads

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 18 citations in OpenAlex.

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  16. Muti-factor analysis of sport activity level after high tibial osteotomy.Journal of orthopaedic surgery and research · 2023
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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

7 authors at 5 institutions in 4 countries.

Moritz MederakeDepartment of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany.
Georgios EleftherakisDepartment of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany.
Daniel SchüllDepartment of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany.
Fabian SpringerDepartment of Radiology, University of Tübingen, Tübingen, Germany.
Nicola MaffulliDepartment of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, SA, 84081, Italy.
Filippo MiglioriniDepartment of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany. migliorini.md@gmail.com.ORCID http://orcid.org/0000-0001-7220-1221
Christian KonradsDepartment of Orthopaedic Surgery, University Hospital Tübingen, Tübingen, Germany.
BG Klinik Tübingen · DEUniversity Children's Hospital Tübingen · DEUniversity Hospital Plzen · CZUniversity of Salerno · ITUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn open-wedge high-tibial-osteotomy (OWHTO), most surgeons use a preoperative planning software and realise that they should match the intraoperative alignment correction with the preoperative plan. We aimed to determine whether there is a difference in osteotomy gap height when starting the OWHTO either 3 or 4 cm distal to the joint line. This should help to clarify whether the osteotomy starting point must exactly match the preoperative planning.

methods25 patients with constitutional varus alignment were planned for OWHTO. Long-leg-standing-radiographs and mediCAD-software were used. Osteotomy was planned to a neutral Hip-Knee-Ankle angle (HKA) of 0°. The osteotomy-starting-point was either 3 or 4 cm distal to the medial joint line. The following angles were compared: mechanical medial proximal tibial angle (mMPTA), mechanical lateral distal femoral angle (mLDFA), joint line conversion angle (JCA), mechanical Tibio-Femoral angle (mTFA) or Hip Knee Ankle (HKA) angle.

results25 Patients (18 males, 7 females) had a mean age of 62 ± 16.6 years and showed a varus-aligned leg-axis. The HKA was - 5.96 ± 3.02° with a mMPTA of 82.22 ± 1.14°. After osteotomy-planning to a HKA of 0°, the mMPTA was 88.94 ± 3.01°. With a mean wedge height of 8.08 mm when locating the osteotomy 3 cm and a mean wedge height of 8.05 mm when locating the osteotomy 4 cm distal to the joint-line, there was no statistically significant difference (p = 0.7).

conclusionWhen performing an OWHTO aiming towards the tip of the fibula, the osteotomy starting point does not need to exactly match the planned starting-location of the osteotomy. A starting-point 1 cm more distal or proximal than previously determined through the digital planning does not alter the size of the osteotomy gap needed to produce the desired amount of correction.

Indexed as

Osteoarthritis, KneeTibiaAgedFemaleFemurHumansKnee JointMaleMiddle AgedOsteotomyRetrospective StudiesCorrection osteotomyFrontal malalignmentFrontal realignmentOsteotomy planningValgusVarus

Identifiers

PMID37170106
PMCPMC10173475
OpenAlexW4376137969

What OpenQuestion holds

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LicenceCC BY
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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.