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Background: Adhesive capsulitisis a common painful multidirectional restriction of shoulder motion. Of 2-5% general population has the adhesive capsulitis. From other reports, it was found that 20-50% of patients suffer long term range of motion deficits. Non-operative treatment according to stage of disease can help most patients recovered much better.
Objective: To identify the prognostic factors affecting duration of the adhesive capsulitis rehabilitation more than 6 months.
Methods: A retrospective study was conducted with outpatients, in the Department of Rehabilitation in Surin hospital, whom had been diagnosed with adhesive capsulitis and rehabilitation, during October 1st 2016 to September 30th 2018. The Fisher’s exacttest, Univariable logistic regression and Multivariable logistic regression was used in the analysis.
Results: The results showed that 49 patients (41.2%) out of the total 119 adhesive capsulitis required rehabilitation more than 6 months.In the univariable logistic regression, it was found that(1) diabetes mellitus (OR 2.80, 95%CI 1.19 – 6.57, p-value=0.017) (2) history of shoulder trauma (OR 2.76, 95%CI 1.22 - 6.24, p-value=0.015) (3)moderate pain score (OR 0.35, 95%CI 0.17 - 0.75, p-value=0.035) (4)severe pain score(OR 3.52, 95%CI 1.64 – 7.57, p-value=0.001) (5)shoulder forward flexion range of motion less than 120 degree(OR 3.71, 95%CI 1.71 – 8.03, p-value=0.001) and (6)shoulder abduction range of motion less than 120 degree(OR 5.59, 95%CI 2.36 – 13.26, p-value=<0.001). In the multivariable logistic analysis, it was found that (1) diabetes mellitus (aOR 3.44, 95%CI 1.25 – 9.48, p-value=0.017), (2) severe pain score ( aOR 3.26, 95%CI 1.35 - 7.79, p-value=0.008) and (3) shoulder abduction range of motion less than 120 degree(aOR 3.51, 95%CI1.03 –11.98, p-value=0.045) are the main factors causing the adhesive capsulitis rehabilitation for more than 6 months.
Conclusions: Prognostic factors affecting the adhesive capsulitis rehabilitation of more than 6 months are diabetes, severe pain score, and range of motion of shoulder abduction less than 120 degree. The results from this research can be used for prognosis and treatment.
Keywords: Adhesive capsulitis, Frozen shoulder, Prognostic factors
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