Functional cortical changes associated with shoulder instability – A systematic review

Morissa Livett, Deborah Williams, Hayley Potter, Mindy Cairns

Research output: Contribution to journalArticlepeer-review

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Abstract

Background: Glenohumeral joint instability is associated with structural deficits and/or alterations in sensory and motor processing; however, a proportion of patients with glenohumeral joint instability fail to respond to surgical and rehabilitative measures. This systematic review aimed to establish if functional cortical changes occur in patients with glenohumeral joint instability. Methods: AMED, CINAHL, Cochrane Central Register of Controlled Trials, Embase, Medline, PEDro, Pubmed, PsychINFO and Scopus were searched from inception to 17 March 2021. Randomised controlled trials and non-randomised trials were included and quality was appraised using the Downs and Black tool. Results: One thousand two hundred seventy-nine records were identified of which five were included in the review. All studies showed altered cortical function when comparing instability patients with healthy controls and included areas associated with higher cortical functions. Discussion: The findings of this systematic review offer some insight as to why interventions addressing peripheral pathoanatomical factors in patients with glenohumeral joint instability may fail in some cases due to functional cortical changes. However, data are of moderate to high risk of bias. Further high-quality research is required to ascertain the degree of functional cortical changes associated with the type and duration of glenohumeral joint instability.

Original languageEnglish
Number of pages13
JournalShoulder and Elbow
Early online date10 Jun 2021
DOIs
Publication statusE-pub ahead of print - 10 Jun 2021

Keywords

  • Glenohumeral joint instability
  • cortical reorganisation

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