Dupuytren’s contracture can be caused by ?
**Core Concept**
Dupuytren's contracture is a chronic, progressive fibrosing disorder of the palmar fascia, leading to flexion deformity of the fingers. It involves the thickening and contraction of the palmar fascia, resulting in a characteristic nodular and cord-like appearance.
**Why the Correct Answer is Right**
The pathogenesis of Dupuytren's contracture involves the proliferation of myofibroblasts and the deposition of extracellular matrix components, such as collagen and elastin. This process is thought to be triggered by a combination of genetic and environmental factors, including smoking, diabetes, and trauma. The involvement of myofibroblasts and the extracellular matrix is key to understanding the underlying mechanisms of Dupuytren's contracture.
**Why Each Wrong Option is Incorrect**
**Option A:** Alcoholism is not a direct cause of Dupuytren's contracture, although it may be associated with other conditions that increase the risk of developing the disease.
**Option B:** Osteoarthritis is a separate condition that affects the joints, and while it may occur in conjunction with Dupuytren's contracture, it is not a direct cause.
**Option C:** Rheumatoid arthritis is an autoimmune disorder that affects the joints, and while it may be associated with Dupuytren's contracture, it is not a direct cause.
**Clinical Pearl / High-Yield Fact**
Dupuytren's contracture is more common in men than women, and the risk increases with age, with the majority of cases occurring after the age of 50.
**Correct Answer: D. Trauma**