Purpose: The purpose of this overview is to summarise the findings of meta-analyses of randomised controlled trials that compare conservative treatment options for frozen shoulder.
Methods: The authors conducted an electronic literature search for meta-analyses published using PubMed, Web of Science and the Cochrane Library. Two researchers independently applied selection criteria and assessed quality of meta-analyses using A MeaSurement Tool to Assess systematic Reviews (AMSTAR-2). Short-, medium- and long-term outcomes were synthesised narratively.
Results: A total of 319 studies were identified, of which 8 meta-analyses were eligible for inclusion. All included meta-analyses were judged to be low or critically low quality according to AMSTAR-2, however, their data synthesis and interpretation was considered valid. Physiotherapy, intra-articular and subacromial corticosteroid injection (CSI), and arthrographic distension/hydrodilatation with corticosteroid were reported with sufficient evidence. Intra-articular CSI and arthrographic distension/hydrodilatation with corticosteroid provide advantages over placebo in short-term pain relief, range of motion (ROM) and shoulder function, with improvements in ROM continuing into the medium and long term. Arthrographic distension/hydrodilatation with corticosteroid provides medium-term and long-term improvements in ROM over intra-articular CSI and physiotherapy. Proprioceptive neuromuscular facilitation provides advantages over conventional physiotherapy for pain improvement and external rotation in the short term.
Conclusions: Arthrographic distension/hydrodilatation with corticosteroid provides superior pain relief in the short term and improvement in range of motion across all time frames for frozen shoulder when compared to CSI or physiotherapy.
Level of evidence: Level IV.
Keywords: Adhesive capsulitis; Conservative treatment; Corticosteroid injection; Distension; Frozen shoulder; Hydrodilatation; Physiotherapy.
© 2021. European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA).