Frozen Shoulder in Type 2 Diabetes Mellitus


Background: Frozen shoulder affects 2-5% of the general population, and around 10-30% of diabetic patients. It affect mainly the non-dominant shoulder, and has more incidence in patients with poor glycemic control.Objective: To detect the incidence of frozen shoulder in type 2 diabetic patients attending the Specialized Center for Endocrinology and Diabetes in Baghdad.Patients and methods: One hundred patients with frozen shoulder were included in the study from a total number of 580 type 2 diabetics over a period of six months. 70 patients were females and 30 patient were males. All were investigated for fasting blood glucose and HbA1c.Results: The non-dominant shoulder was involved in 60 patients (60%), the dominant shoulder in 35 patients (35%) and bilateral involvement in 5 patients (5%). 60 patients (60%) had poor glycemic control (HbA1c > 8%).Conclusion Diabetes mellitus is one of the predisposing factors for the development of frozen shoulder which affect 17.2% of type 2 diabetic patients in our study, most of them were overweight- obese and had poor glycemic control.