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Thoracic manual therapy improves pain and disability in individuals with shoulder impingement syndrome compared to placebo: a randomised controlled trial with one year follow-up

Journal: Archives of Physical Medicine and Rehabilitation Date: 2022/03, (online 2022/03/21):. doi: Subito , type of study: randomized controlled trial

Full text    (https://www.sciencedirect.com/science/article/abs/pii/S0003999322002775)

Keywords:

shoulder impingement syndrome [6]
disability [37]
muscle energy technique [157]
MET [449]
pain [1108]
randomized controlled trial [710]

Abstract:

OBJECTIVE: To investigate if muscle energy technique (MET) to the thoracic spine decreases the pain and disability associated with shoulder impingement syndrome (SIS). DESIGN: Single centre, three-arm, randomised controlled trial, single-blind, placebo control with concealed allocation and a 12-month follow-up. SETTING: Private osteopathic practice. INTERVENTIONS: Participants were randomly allocated to: MET to the thoracic spine (MET-only), MET plus soft tissue massage (MET&STM) or placebo. PARTICIPANTS: 3 groups of 25 (n=75) participants ≥ 40 years with SIS received allocated intervention once a week for 15 minutes, 4 consecutive weeks. OUTCOME MEASURES: Primary outcome measure: Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire. SECONDARY OUTCOME MEASURES: Shoulder Pain and Disability Index (SPADI) questionnaire, visual analogue scale (VAS-mm/100) -current, 7-day average, 4-week average, patient specific functional scale (PSFS) and global rating of change (GROC). Measures recorded at baseline, discharge, 4-weeks follow-up, 6-months and 12-months. Also baseline and discharge thoracic posture and range of motion (ROM) measured using an inclinometer. STATISTICAL ANALYSIS: Mixed effects linear regression model for DASH, SPADI, VAS, PSFS, GROC and thoracic posture and ROM. RESULTS: MET-only group demonstrated significantly greater improvement in pain and disability (DASH, SPADI, VAS 7-day average) compared to placebo at discharge (mean difference DASH=-8.4; 95% CI -14.0,-2.8; SPADI=-14.7;-23.0,-6.3; VAS=-15.5;-24.5,-6.5), 6 -months (-11.1;-18.6,-3.7; -14.9;-26.3,-3.5; -14.1;-26.0,-2.2) and 12 -months (-13.4;-23.9,-2.9; -19.0;-32.4,-5.7; -17.3;-30.9,-3.8). MET&STM group also demonstrated greater improvement in disability, but not pain compared to placebo at discharge (DASH=-8.2;-14.0,-2.3; SPADI= -13.5;-22.3,-4.8) and 6 months (-9.0;-16.9,-1.2; -12.4;-24.3,-0.5). For the PSFS, MET-only improved compared to placebo at discharge (1.3;0.1,2.5) and 12 months (1.8;0.5,3.2); MET&STM at 12 months (1.7;0.3,3.0). GROC: MET-only improved compared to placebo at discharge (1.5;0.9,2.2) and 4 weeks (1.0;0.1,1.9); MET&STM at discharge (1.2;0.5,1.9) and 6 months (1.2;0.1,1.3). There were no differences between MET-only and MET&STM, and no between-group differences in thoracic posture or ROM. CONCLUSION: MET of the thoracic spine with or without STM improved the pain and disability in individuals over 40 with SIS and may be recommended as a treatment approach for SIS.


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