Evidence map›Paper›PMID 37840900›Full record

ArticleOrthopaedic journal of sports medicine2023

Contribution of the Medial Hamstrings to Valgus Stability of the Knee.

Pierre-Henri Vermorel, Rodolphe Testa, Antonio Klasan, Sven E Putnis, Rémi Philippot, Bertrand Sonnery-Cottet, Thomas Neri

Open access · goldAbstract read
In one paragraph

Article in Orthopaedic 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 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.9field-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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Current trends in the medial side of the knee: not only medial collateral ligament (MCL).Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2024
    Review
  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

7 authors at 4 institutions in 3 countries.

Pierre-Henri VermorelDepartment of Orthopaedic Surgery, University Hospital Centre of Saint-Étienne, Saint-Étienne, France.
Rodolphe TestaDepartment of Orthopaedic Surgery, University Hospital Centre of Saint-Étienne, Saint-Étienne, France.
Antonio KlasanAUVA UKH Steiermark, Graz, Austria.
Sven E PutnisBristol Royal Infirmary, University Hospitals Bristol & Weston NHS Foundation Trust, UK.
Rémi PhilippotDepartment of Orthopaedic Surgery, University Hospital Centre of Saint-Étienne, Saint-Étienne, France.
Bertrand Sonnery-CottetDepartment of Orthopaedic Surgery and Sports Medicine, Centre Orthopédique Santy, FIFA Medical Centre of Excellence, Groupe Ramsay-Generale de Sante, Hôpital Privé Jean Mermoz, Lyon, France.
Thomas NeriDepartment of Orthopaedic Surgery, University Hospital Centre of Saint-Étienne, Saint-Étienne, France.
Centre Hospitalier Universitaire de Saint-Étienne · FRBristol Royal Infirmary · GBHôpital Privé Jean Mermo · FRJohannes Kepler University of Linz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Multiligament knee injuries involving the medial side are common. When performing surgical reconstruction, use of the medial hamstrings (HS) as grafts remains controversial in this setting. Purpose: To determine the role of the medial HS in stabilizing the valgus knee for different types of medial-sided knee injury. Study Design: Controlled laboratory study. Methods: A biomechanical study on 10 cadaveric knees was performed. Valgus load (force moment of 10 N/m) was applied at 0°, 30°, and 60° of flexion, and the resultant rotation was recorded using an optoelectronic motion analysis system. Measurements were repeated for 4 different knee states: intact knee, superficial medial collateral ligament (sMCL) injury, deep medial collateral ligament (dMCL) injury, and posterior oblique ligament (POL) injury. For each state, 4 loading conditions (+ loaded; - unloaded) of the semitendinosus (ST) and gracilis (GRA) tendons were tested: ST+/GRA+, ST+/GRA-, ST-/GRA+, and ST-/GRA-. Results: At 0° of flexion, combined unloading of the ST and GRA (ST-/GRA-) increased valgus laxity on the intact knee compared with the ST+/GRA+ condition ( Conclusion: The medial HS tendons contributed to the stabilization of the knee in valgus, and this was even more important when the medial side was severely affected (POL damage). This stabilizing effect was greater between 0° and 30°, in which the POL is the main valgus stabilizer. Clinical Relevance: When deciding on graft selection for multiligament knee injury reconstruction, the surgeon should be aware of the effect of harvesting the medial HS tendon on valgus laxity.

Indexed as

hamstringkneeMCLmultiligament knee injuryPOL

Identifiers

PMID37840900
PMCPMC10571687
OpenAlexW4387578117

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.