In Dupuytren's contracture, what results from the thickening of the palmar aponeurosis?

In Dupuytren's contracture, the condition is characterized by the thickening and shortening of the palmar fascia, also known as the palmar aponeurosis. This pathological change results in the formation of a thick cord-like structure that can extend from the palm into the fingers. This thickening leads to the development of palpable nodules and cords within the palm, ultimately causing the fingers, especially the fourth and fifth (ring and little) fingers, to flex towards the palm.

This process is progressive and can significantly limit the range of motion in the affected fingers, leading to functional impairment. Understanding this mechanism is crucial for diagnosing and treating Dupuytren's contracture, as the cord formation is a direct consequence of the pathological changes in the connective tissue structure of the palm. Therefore, the presence of this thick cord is a hallmark feature of the disease, directly linking the condition to the changes in the palmar aponeurosis.