Evidence map›Paper›PMID 33993320›Full record

SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2021

Chronic ankle instability has no correlation with the number of ruptured ligaments in severe anterolateral sprain: a systematic review and meta-analysis.

Jácome Pacheco, Francisco Guerra-Pinto, Luis Araújo, Miguel Flora, Rita Alçada, Teresa Rocha, Pedro Diniz, José Guimarães Consciência

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Recent advances in the management of chronic ankle instability.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. The lasso-loop technique is equivalent to the simple suture technique in arthroscopic anterior talofibular ligament repair.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Article
  10. Article
  11. Review
  12. Review
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 5 institutions in 4 countries.

Jácome PachecoDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal. duniopacheco@gmail.com.ORCID http://orcid.org/0000-0002-5832-7626
Francisco Guerra-PintoDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal.
Luis AraújoDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal.
Miguel FloraDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal.
Rita AlçadaDepartment of Orthopaedic Surgery, Hospital de Cascais, Cascais, Portugal.
Teresa RochaDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal.
Pedro DinizDepartment of Orthopaedic Surgery, Hospital de Sant'Ana, Rua de Benguela, 501, 2775-028, Cascais, Portugal.
José Guimarães ConsciênciaNOVA Medical School, Lisbon, Portugal.
Hospital de Santo António · PTEscola Superior de Saúde da Cruz Vermelha Portuguesa · PTCascades (Canada) · CAEscola Superior de Enfermagem de Lisboa · PTNova Medical (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDespite being a significant public health problem, ankle sprains' prognostic factors are largely unknown. This review aimed to systematically analyze the literature on acute ankle sprains to compare the prognosis of a combined anterior talofibular (ATFL) and calcaneofibular (CFL) ligaments rupture with an isolated ATFL rupture in terms of progression to chronic ankle instability and other clinical outcomes.

methodsThe databases for Pubmed, CENTRAL and Web of Science were searched. Clinical studies reporting the prognostic effect of combined ATFL-CFL rupture versus an isolated ATFL rupture in conservatively treated ankle sprains, with a minimum follow-up of 12 months, were eligible for inclusion. Only studies with a reliable diagnostic method for anterolateral ankle ligaments evaluation, namely ultrasonography, magnetic resonance imaging, arthrography or stress tenography, were included. The relative risk (RR), along with the 95% confidence interval (CI), was used to quantitatively analyze the main outcomes.

resultsNine papers were selected for inclusion, of which five were suitable for quantitative analysis. None of them found a statistically significant correlation between ligament injury severity and progression to chronic instability. Concerning other clinical outcomes, three studies found a statistically significant correlation between a combined ligament injury and a worse clinical prognosis. From the quantitative analysis, the relative risk (RR) of chronic ankle instability in a single versus a combined ligament rupture showed no significant difference.

conclusionA significant statistical correlation between a combined ATFL-CFL rupture and chronic ankle instability, compared to an isolated ATFL rupture, was not found. There is, however, fair evidence showing a worse clinical outcome score in the combined ruptures, as well as a decreased return to full sports activities. The use of reliable and accessible diagnostic methods to determine the number of ruptured ligaments might have a role in managing severe ankle sprains. LEVEL OF EVIDENCE: Level III.

Indexed as

Joint InstabilityLateral Ligament, AnkleSprains and StrainsAnkleAnkle JointHumansLigaments, ArticularAnkle sprainCalcaneofibular ligamentChronic ankle instabilityPrognosisTalofibular ligament

Identifiers

PMID33993320
OpenAlexW3163234382

What OpenQuestion holds

Textmetadata
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.