title: Subacromial corticosteroid injection for poststroke shoulder pain: an exploratory prospective case series.
abstract: OBJECTIVE
  To assess the effectiveness of subacromial corticosteroid injections for poststroke shoulder pain.
  
  
  METHODS
  Exploratory, prospective case series.
  
  
  METHODS
  Ambulatory setting, university-affiliated hospital.
  
  
  METHODS
  Stroke survivors (N=10) with pain in the hemiparetic shoulder.
  
  
  METHODS
  Consecutive stroke survivors with evidence of supraspinatus impingement, supraspinatus tendonitis, or subacromial bursitis received subacromial corticosteroid injections.
  
  
  METHODS
  The primary outcome measure was the Brief Pain Inventory (BPI) question 12 (BPI 12), which assesses "worst pain" in the previous 7 days. Secondary measures included BPI question 15, which assesses present pain and BPI question 23 (BPI 23), which assesses pain interference with 7 daily activities. Outcomes were assessed at baseline, weekly for the first 4 weeks and then at 8 and 12 weeks postinjection.
  
  
  RESULTS
  Repeated measure analysis of variance revealed significant within group time effect for BPI 12 (F=7.7, P<.001). Based on absolute means, the largest therapeutic benefit was seen by the second week postinjection with partial loss of effect thereafter. There were significant within group time effects for the general activity (F=3.2, P=.009), sleep (F=3.9, P=.003), and enjoyment of life (F=2.3, P=.044) domains of BPI 23.
  
  
  CONCLUSIONS
  Subacromial corticosteroid injection is associated with significant reduction in poststroke shoulder pain in patients with evidence of supraspinatus impingement, supraspinatus tendonitis, or subacromial bursitis. However, there is a gradual loss of effect with time. Controlled trials are needed to show a cause and effect relationship.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Case Western Reserve University School of Medicine, MetroHealth Rehabilitation Institute of Ohio, Cleveland, OH 44109, USA. jchae@metrohealth.org
authors.forename: John
authors.initials: J
authors.lastname: Chae
authors.forename: Lynn
authors.initials: L
authors.lastname: Jedlicka
mesh_terms: D000203:Activities of Daily Living; D000305:Adrenal Cortex Hormones / Q000008:administration & dosage*; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D007270:Injections, Intra-Articular; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011446:Prospective Studies; D012785:Shoulder Joint; D020069:Shoulder Pain / Q000188:drug therapy* / Q000209:etiology / Q000534:rehabilitation*; D020521:Stroke / Q000150:complications*; D004561:Transcutaneous Electric Nerve Stimulation
chemical_list: D000305:Adrenal Cortex Hormones