About one in six patients with frozen shoulder will also have Dupuytren’s disease and vice versa. Frozen shoulder has been called “Dupuytren’s of the shoulder”: the abnormal tissues are quite similar. However, they are different in other respects – for example, Dupuytren’s commonly recurs after surgical treatment, but frozen shoulder does not. This study demonstrates how biomechanical tissue responses to stimulation differs in these two conditions, which may help explain this: http://www.dupuytrenfoundation.org/DupPDFs/2006_Bains_43.pdf