Diabetic and non-diabetic patients report equal symptom relief after arthroscopic capsular release of frozen shoulder

Abstract

BackgroundFrozen shoulder is a painful joint disease. Patients with diabetes seem to have worse clinical symptoms and surgery in this patient population is believed to be more common.The objective postoperative evaluation indicates inferior results when surgically treating diabetics, but no previous studies have investigated exclusively the subjective patient satisfaction with arthroscopic capsular release. Materials and methodsA total of 93 patients were included. All had persistent symptoms despite conservative treatment for at least six months. The patients were retrospectively divided into two groups based on diabetes status: Group 1 consisted of patients with type 1 or type 2 diabetes (18) and group 2 consisted of the remaining patients (75). Evaluation was performed prior to arthroscopic capsular release and at six months follow-up. The web-based questionnaire consisted of two different evaluation forms: The Oxford Shoulder Score (OSS) and a visual quality scale (VQS). ResultsBoth groups reported a statistically significant improvement in both evaluations. OSS in group 1 improved by 11.5 [95% CI: 6.2 ; 16.4] and by 15.8 [95% CI: 13.6 ; 17.9] in group 2. The improvement was more pronounced in group 2, though not statistically significant (p = 0.09). The VQS improved 39.6 in group 1 and 44.5 in group 2, (p = 0.50). ConclusionDiabetic and non-diabetic patients reported equal symptom relief after arthroscopic capsular release of frozen shoulder when selected for operation without considering diabetic status. We will continue to select patients for arthroscopic release without differences in preoperative counseling between diabetics and non-diabetics.