This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forearm wrist and hand injuries, Subject name: Orthopaedics
[{'content': "Smith's fracture involves which bone? \nSelect and explain. \nA. Distal radius, B. Proximal ulna, C. Metatarsal, D. Patella", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Smith&;s fracture is the reverse of Colles&; fracture. It differs from Colles&; fracture in that distal fragment of radius displaces ventrally and tilts ventrally. Treatment is by closed reduction and plaster cast immobilisation for 6 weeks. SMITH&;S FRACTURE (Reverse of Colles&; Fracture) This uncommon fracture is seen in adults and in elderly people. Its impoance lies in differentiating it from the commoner Colles&; fracture which occurs at the same site. It differs from Colles&; fracture in that the distal fragment displaces ventrally and tilts ventrally. Treatment is by closed reduction and plaster cast immobilisation for 6 weeks. Complications are similar to those in Colles&; fracture. Ref: Essential Ohopaedics, Maheswari & Mhaskar, 9th ed, Page no: 114', 'role': 'assistant'}]