Higher rate of injection accuracy with midlateral vs posterior subacromial injection

Orthopedics. 2019 Jan 1;42(1):e44-e50. doi: 10.3928/01477447-20181109-03

Efficacy of ultrasound-guided corticosteroid injections for shoulder pain treatment

Semin Arthritis Rheum. 2015 Dec;45(3):374-8

Comparison of PRP vs. corticosteroid subacromial injection for partial supraspinatus tear

Eur J Orthop Surg Traumatol. 2016 Dec;26(8):837-842

Rotator cuff syndrome: Posterior route for subacromial injection not accurate

J Bone Joint Surg Am. 2012 Aug 15;94(16):1442-7.

Subacromial injections inaccurate regardless of infiltration method or surgeon confidence

Arthroscopy. 2006 Mar;22(3):277-82.

Subacromial Corticosteroid Injection effective for patients with Hemiplegic Shoulder Pain

Arch Phys Med Rehabil. 2012 Jun;93(6):949-56. doi: 10.1016/j.apmr.2012.02.002. Epub 2012 Apr 5

AAOS 2016: Subacromial inferior to IA corticosteroid injection for frozen shoulder

Short-term comparison of glenohumeral and/or subacromial injection for adhesive capsulitis

Joint Bone Spine. 2016 May;83(3):324-9

Ultrasound guided comparable to blind injection for shoulder impingement syndrome

Am J Sports Med. 2016 Mar;44(3):702-7.

Methylprednisolone is more effective than tenoxicam for subacromial impingment

J Bone Joint Surg Br. 2010 Jan;92(1):77-82.

ISAKOS2017: Short-term functional improvement better with SSNB vs subacromial injection for RC tears

Hydrodilation versus intra-articular and subacromial injections for adhesive capsulitis

J Shoulder Elbow Surg. 2016 Mar;25(3):376-83

Dual-target superior to standard subacromial corticosteroid injection for shoulder impingement

Arch Phys Med Rehabil. 2019 Nov;100(11):2119-2128.

Subacromial injection of local anaesthetic does not affect strength in healthy shoulders

J Bone Joint Surg Am. 2012 Oct 3;94(19):1751-5. doi: 10.2106/JBJS.K.00855

Steroid injection into rotator interval favoured over IA & subacromial injection for frozen shoulder

Am J Sports Med. 2018 Mar;46(3):663-670

No clinically relevant benefit of subacromial decompression for subacromial shoulder pain

Lancet. 2018 Jan 27;391(10118):329-338. doi: 10.1016/S0140-6736(17)32457-1

Subacromial impingement: Hyaluronic acid less effective than corticosteroid injection

J Bone Joint Surg Br. 2012 Sep;94(9):1246-52

Cost-efficacy analysis of decompression versus irrigation and no treatment for subacromial pain

Bone Joint J. 2019 Jan;101-B(1):55-62. doi: 10.1302/0301-620X.101B1.BJJ-2018-0555.R1

NSAID injection of ketorolac improved UCLA scores & passive abduction in patients with SIS

J Shoulder Elbow Surg. 2013 May;22(5):595-601. doi: 10.1016/j.jse.2012.08.026. Epub 2012 Nov 22

Better 12-week outcome with suprascapular block vs. subacromial injection for rotator cuff treatment

J Shoulder Elbow Surg. 2019 Mar;28(3):430-436. doi: 10.1016/j.jse.2018.11.051