Is subtrochanteric fracture a hip fracture?

Is subtrochanteric fracture a hip fracture?

Hip fractures can occur either due to a break in the femoral neck, in the area between the greater and lesser trochanter or below the lesser trochanter. Subtrochanteric hip fracture is a break between the lesser trochanter and the area approximately 5 centimeters below the lesser trochanter.

What three deformities are commonly seen in a subtrochanteric fracture?

Subtrochanteric fractures often are associated with intertrochanteric fractures. The strong gluteal and thigh muscles create a classic deformity. The proximal fragment is held in abduction, flexion, and external rotation. The gluteus medius and minimus attach at the greater trochanter and provide an abduction force.

What is a subtrochanteric fracture?

Subtrochanteric femoral fractures are fractures of the proximal femur that may extend proximally into the piriformis fossa or distally into the isthmus of the femur. The proximal extension of the fracture varies and may include fracture patterns combined with intertrochanteric and femoral neck fractures.

What is Pertrochanteric fracture?

Pertrochanteric femoral fractures are a subtype of trochanteric fractures involving the femur. They are one of the most common fractures in old patients. They can involve both the greater and lesser trochanter and are a type of extracapsular fracture.

Where is the subtrochanteric region?

The subtrochanteric region of the femur, arbitrarily designated as the region between the lesser trochanter and a point 5 cm distal, consists primarily of cortical bone. The femoral head and neck are anteverted approximately 13º with respect to the plane of the femoral shaft.

What is Calcar femoris?

The calcar femorale is a spur of thickened bone that lies deep to the lesser trochanter but posterior to the neutral axis of the femoral neck. The calcar is thickest medially where it joins the compression buttress of the neck and gradually thins as it passes laterally.

What is the subtrochanteric femur?

Why does external rotation occur in hip fracture?

The degree of deformity seen is dependent on both the anatomical configuration of the fracture and the degree of displacement. The classically described presentation is a shortened and externally rotated limb due to the unopposed pull of the iliopsoas muscle that attaches to the lesser trochanter.

What is internal and external rotation?

In anatomy, internal rotation (also known as medial rotation) is rotation towards the centre of the body. External rotation (or lateral rotation) is rotation away from the centre of the body.

Does human have calcar?

The calcar serves to help spread the interfemoral membrane, which is part of the wing membrane between the tail and the hind legs. Calcar (Femorale) also refers to the dense, vertically oriented bone present in the posteromedial region of the femoral shaft inferior to the lesser trochanter.

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