NEET-PG 2018 — Orthopaedics

Q: Identify the bone numbered in the X-ray that most commonly fractures when a person falls on outstretched hands.

Distal radius. ***Distal radius*** - The **distal radius** is the bone most frequently fractured when a person falls on an **outstretched hand**. This is commonly known as a **Colles fracture** if the fragment is displaced dorsally. - The force of impact is transmitted directly to the distal end of the radius, making it susceptible to fracture, especially in cases of **osteoporosis**. *Scaphoid* - The **scaphoid** bone is also commonly fractured with a fall on an outstretched hand, but it is less frequent than the distal radius. - A scaphoid fracture is concerning due to its **precarious blood supply**, which can lead to **avascular necrosis** and non-union. *Lunate* - The **lunate** bone is centrally located in the wrist and is less commonly fractured but can be dislocated or injured in high-impact trauma. - Injuries to the lunate are often associated with **perilunate dislocations**, which are severe wrist injuries. *Capitate* - The **capitate** is the largest carpal bone, located in the center of the wrist, and is rarely fractured in isolation from a fall on an outstretched hand. - Fractures of the capitate are often associated with more extensive carpal injuries due to its robust nature and central, protected position. [Practice more Orthopaedics PYQs on OnCourse]

1 Previous Year Questions with Answers & Explanations

Questions

Identify the bone numbered in the X-ray that most commonly fractures when a person falls on outstretched hands.