Incidence and clinical profile of patients with frozen shoulder after cardiac surgery

Abstract

Background: Frozen shoulder is a condition characterized by pain and global restriction of movement with loss of external rotation. Cardiac surgery may predispose frozen shoulder as patients tend to immobilize their upper limbs after surgery. Objectives: The aim of this study is to analyze the clinical profile of patients presenting with symptoms of periarthritis shoulder and to determine the incidence of frozen shoulder among patients undergoing cardiac surgery as well as to find the factors associated with its development. Methods: It is a clinical observational study done in the Cardiology Department of Chettinad Hospital and Research Institute, Chennai, between August 2015 and May 2016, on 100 patients who underwent cardiac surgery and attended the follow-up session as an outpatient. Data were collected by face-to-face interview using a standardized questionnaire. Respondents presenting with pain and restricted movement of shoulder joint with positive limitation in lateral rotation, abduction, and medial rotation (LAM) test were considered to have frozen shoulder. Each participant was followed up for 3 months postcardiac surgery. Results: The mean age of the study participants was 53.63 ± 13.03 years, and 65% were males. Of the 100 participants, 20 (20%) developed frozen shoulder. Age (P < 0.01), diabetes mellitus (<0.01), hypertension (P < 0.001), type of surgery (P < 0.02), and regularity of physiotherapy follow-up (P < 0.01) had significant association with positive LAM test on univariate analysis. However, on multivariate logistic regression analysis, only hypertension and physiotherapy regularity were found to have a trend toward a significant independent association with the occurrence of frozen shoulder (P = 0.090 and 0.097, respectively). Conclusion: The present study shows that cardiac surgery increases the risk of developing frozen shoulder during the early postoperative period. Statistically significant correlation existed between positive LAM test and age of the patients, presence of diabetes mellitus and hypertension, type of cardiac surgery, and the regularity of physiotherapy follow-up.

Keywords

• Adhesive capsulitis
• cardiac surgery
• frozen shoulder
• limitation in lateral rotation
• abduction
• and medial rotation test