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J Shoulder Elbow Surg. 2016 Mar;25(3):376-83. doi: 10.1016/j.jse.2015.11.009.

Intra-articular injection, subacromial injection, and hydrodilatation for primary frozen shoulder: a randomized clinical trial.

Author information

1
Department of Orthopaedic Surgery, School of Medicine, Kyungpook National University, Daegu, South Korea.
2
Department of Orthopaedic Surgery, School of Medicine, Konkuk University, Seoul, South Korea. Electronic address: smilecsw@gmail.com.
3
Department of Orthopaedic Surgery, School of Medicine, Konkuk University, Seoul, South Korea.
4
Center for Bionics, Korea Institute of Science and Technology, Seoul, South Korea.

Abstract

BACKGROUND:

The aim of this prospective randomized study was to compare the efficacy of 3 injection methods, intra-articular injection, subacromial injection, and hydrodilatation (HD), in the treatment of primary frozen shoulder.

METHODS:

Patients with primary frozen shoulder were randomized to undergo intra-articular injection (n = 29), subacromial injection (n = 29), or HD (n = 28). Evaluations using a visual analog scale for pain, Simple Shoulder Test, Constant score, and passive range of shoulder motion were completed before treatment and 1 month, 3 months, and 6 months after treatment.

RESULTS:

Among the 3 injection methods for primary frozen shoulder, HD resulted in a greater range of motion in forward flexion and external rotation, a lower visual analog scale score for pain after 1 month, and better outcomes for all functional scores after 1 month and 3 months of follow-up. However, there were no significant differences in any clinical outcomes among the 3 groups in the final follow-up at 6 months.

CONCLUSIONS:

Although HD yielded more rapid improvement, the 3 injection methods for primary frozen shoulder resulted in similar clinical improvement in the final follow-up at 6 months.

KEYWORDS:

Primary frozen shoulder; hydrodilatation; injection method; intra-articular injection; stiff shoulder; subacromial injection

PMID:
26927433
DOI:
10.1016/j.jse.2015.11.009
[Indexed for MEDLINE]

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