http://stroke.ahajournals.org/content/44/11/3136.abstract.html?etoc
- Zoe Adey-Wakeling, BMBS;
- Maria Crotty, PhD;
- E. Michael Shanahan, PhD
+ Author Affiliations
- Correspondence to Zoe Adey-Wakeling, BMBS, Department of Rehabilitation and Aged Care, C Block, Repatriation General Hospital, Daws Road, Daw Park SA 5041. E-mail zoe.adey-wakeling@health.sa.gov.au
Abstract
Background and Purpose—Shoulder
pain is a common complication after stroke that can impede
participation in rehabilitation and has been associated
with poorer outcomes. Evidence-based
treatments for hemiplegic shoulder pain are limited. Suprascapular nerve
block (SSNB)
is a safe and effective treatment of shoulder
pain associated with arthritic shoulder conditions, but its usefulness
in a
stroke population is unclear.
Methods—We
undertook a randomized controlled trial assessing the effectiveness of
SSNB in a population of 64 stroke patients (onset
< 1 year) with hemiplegic shoulder pain.
The primary outcome was pain measured on a visual analogue scale (VAS).
Secondary
outcomes were disability (Modified Rankin
Scale, Croft Disability Index) and quality of life (EuroQol Health
Questionnaire).
All participants were assessed before
randomization, and at 1, 4, and 12 weeks postintervention. Both groups
continued with
routine therapy.
Results—Although
both intervention and control groups demonstrated reduction in pain
score, participants who received SSNB consistently
demonstrated superior, statistically
significant pain reduction compared with placebo. Mean VAS reduction in
the SSNB group
was >18 mm greater than participants
receiving placebo injection. The number needed to treat with SSNB to
reduce 1 stroke
survivor’s pain by 50% at 4 weeks is 4. No
significant differences in function or quality of life were observed. No
adverse
events were reported.
Conclusions—Suprascapular nerve block is a safe and effective treatment for patients with hemiplegic shoulder pain.
Clinical Trial Registration—URL: http://www.anzctr.org.au. Unique identifier: ACTRN12609000621213.
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