The term "subcapital" refers to which type of fracture?

• A. Fracture at the base of the femoral neck
• B. Fracture just below the femoral head
• C. Fracture involving the femoral neck
• D. Fracture disrupting Shenton's line

Answer: (B)

The term "subcapital" specifically refers to a fracture that occurs just below the femoral head. This classification is important in the context of hip fractures, as the location of the fracture can significantly influence treatment strategies and prognosis. Fractures in this area are often associated with specific complications, such as avascular necrosis, due to the potential disruption of the blood supply that travels through the femoral neck to the head.

Understanding the anatomy is crucial: the femoral head is the spherical upper part of the femur that articulates with the acetabulum of the pelvis, and the subcapital region is directly beneath it, at the juncture of the neck of the femur. This anatomical relationship underscores why subcapital fractures can have serious implications for joint function and healing.

In contrast, fractures at the base of the femoral neck or those that involve the femoral neck may refer to different fracture patterns that do not have the same immediate proximity to the femoral head as a subcapital fracture. Disruption of Shenton's line is more of an indicator of instability or displacement rather than a specific location of fracture.