Table 1.

Summary of various debatable parameters regarding injectable steroids

	Parameters	Reference	Conclusions
1	High dose (40 mg), low dose (20 mg) or very low dose (10 mg) steroid	Kim et al., RCT, 2018 [52] Yoon et al., RCT, 2013 [53]	1. No difference between 40 mg vs 20 mg 2. 10 mg is less effective than 40 mg
2	Single vs. Multiple injections	Erickson et al., 2019 [44]; retrospective study of 1377 patient	Multiple are no better than single injection in improving clinical outcome
3	Site: IA vs SA vs RI	Shang et al., Meta-analysis, systematic review, 2019 [54]	1. No overall significant difference 2. Pain scores better in IA groups 3. IR better in SA groups 4. SA injection result in lesser BGL fluctuation
		Sun et al., RCT, 2018 [55]	Single injection into SA, IA and RI resulted in better pain, ROM and functional scores in RI group
4	Triamcinolone (TA) vs. Methylprednisolone (MTP)	Sakeni et al., Level II, 2007 [57] One injection a week for 3 weeks	TA gave superior result in resistant cases and Diabetics compared to MTP
		Choudhary et al., 2015 [56]; Three injection every three weeks in either group	TA group had better pain scores and ROM
		Lopez et al., 2008 [58]	More relief of pain in MTP than TA
5	With or without image (USG or fluoroscopic) guidance	Song et al., Systematic review, 2014 [59]	Added benefit of Image guided injections over blind injection in improving pain and ROM. However, needs further evaluation

IA Intraarticular, SA Subacromial, RI Rotator interval IR, Internal rotation, ROM range of movement, USG Ultrasonography, BGL blood glucose level. Number in [] denotes reference in the text