Table 1. Intra-Articular Injections.

AUTHOR (YEAR)	GROUPS STUDIED	INTERVENTION	RESULTS AND CONCLUSIONS
Wang et al. (2017)	Patients with Adhesive Capsulitis	Meta-analysis of Intra-articular corticosteroid injections	Intra-articular corticosteroid injections were more effective in pain relief in the short term, but this pain relief did not sustain in the long term
Koh (2016)	Patients with primary and secondary adhesive capsulitis	Systematic review of randomized controlled studies to assess the efficacy and safety of corticosteroid injections	Dosages of intra-articular triamcinolone 20 mg and 40 mg showed identical outcomes, while subacromial and glenohumeral corticosteroid injections had similar efficacy. The use of corticosteroid injections is also generally safe, with infrequent and minor side effects.
Papalia (2017)	Patients with Adhesive capsulitis	Systematic review of studies comparing clinical outcomes of patients treated with Hyaluronic acid in association with conventional therapy	When compared with cortisone intra-articular injection, HA has equivalent clinical outcomes and ROM.
Lim et al. (2014)	Patients with idiopathic adhesive capsulitis	Prospective study comparing the early clinical results of intra-articular injection of hyaluronate or corticosteroid in patients with idiopathic adhesive capsulitis.	Patients treated with intra-articular injection of hyaluronate and corticosteroid for idiopathic adhesive capsulitis showed significant improvement in early clinical scores and range of motion without significant differences between groups.
Khenioui et al. (2016)	Patients with joint pain	Systemic review looking at the analgesic effect of botulinum toxin in joint pain	The number of randomized trials and sample sizes are too small to provide a satisfactory level of scientific evidence or statistical power