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Clinical Efficacy of Small Needle Knife Therapy on Stage I-II Frozen Shoulder

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Botulinum toxin for shoulder pain.

Jasvinder A Singh¹, Patrick M Fitzgerald

¹Department of Medicine, Birmingham VA Medical Center, Faculty Office Tower 805B, 510 20th Street South, Birmingham, USA, AL 35294.

The Cochrane Database of Systematic Reviews

|September 9, 2010

Summary

Botulinum toxin injections may reduce shoulder pain and improve function in patients with post-stroke or arthritis pain. However, evidence is limited by small sample sizes and high risk of bias, necessitating further research.

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Area of Science:

Neurology
Rheumatology
Pain Management

Background:

Emerging evidence suggests botulinum toxin possesses anti-nociceptive properties.
Shoulder pain is a common and debilitating condition, impacting patient quality of life.

Purpose of the Study:

To evaluate the efficacy and safety of botulinum toxin for shoulder pain.
To compare botulinum toxin against placebo or other treatments.

Main Methods:

Systematic review and meta-analysis of randomized controlled trials (RCTs).
Searched multiple databases including CENTRAL, MEDLINE, CINAHL, SPORTDiscus, EMBASE, and Science Citation Index.
Included RCTs comparing botulinum toxin with placebo or active treatments for shoulder pain.

Main Results:

Five RCTs (164 patients) with post-stroke shoulder pain showed botulinum toxin A reduced pain at 3-6 months but not 1 month.
Improved shoulder external rotation at 1 month post-injection; no significant changes in abduction or spasticity.
One RCT in arthritis-related shoulder pain indicated botulinum toxin reduced pain severity and disability, improving shoulder abduction.

Conclusions:

Botulinum toxin A injections appear to alleviate pain and enhance shoulder function and range of motion in specific shoulder pain populations.
Findings should be interpreted cautiously due to limited evidence (small sample sizes, high risk of bias).
Further research is required to confirm efficacy and gather comprehensive safety data.