What is the function of calcar femorale?

The calcar femorale can bear compression load and redistributes stress or load from the femoral head to the proximal femur. The calcar femorale also contributes to the strength of the femoral neck. Bigelow described the calcar femorale as ‘the true neck of the femur’.

What is the calcar femorale?

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 medial calcar?

The calcar femorale is a vertical plate of bone lying deep to the lesser trochanter and is formed as a result of traction of the iliopsoas which separates the femoral cortex into two distinct layers, the calcar femorale and the medial femoral cortex. They fuse together proximally to form the medial femoral neck.

What is a keeled calcar?

In the hairy-legged vampire bat, the calcar has a unique, finger-like form that extends approximately 3 mm (0.12 in) beyond the edge of the uropatagium. This form of calcar is referred to as a “keeled calcar”, and it is hypothesized that it may be useful in converting the uropatagium into a basket for catching insects.

What is a Hemiarthroplasty?

Hemiarthroplasty is a surgical procedure that replaces one half of the hip joint with a prosthetic, while leaving the other half intact. There are several different options available for the type of device to be used; we prefer to use a bipolar type, which has a femoral head that swivels during movement.

What is Babcock triangle?

Babcock triangle is a relatively radiolucent triangular area seen in the subcapital region of the femoral neck on an anteroposterior radiograph of the hip. In this region, the trabeculae are loosely arranged and surrounded by more radiodense normal bony trabeculae groups.

Where is the medial Calcar?

The calcar femorale is a normal ridge of dense bone that originates from the postero-medial endosteal surface of the proximal femoral shaft, near the lesser trochanter. It is vertical in orientation, and the ridge projects laterally toward the greater trochanter.

How do I identify a bat in flight?

The best way to identify bats in flight is to use a bat detector. This is a device with a microphone that listens to the bats high frequency calls, and plays them back at a lower frequency. Bats use echolocation calls to find out what is around them.

How do I know what kind of bat I have?

Recording bats’ echolocation “calls” is the most efficient and least intrusive way of identifying different species of bats in a given area, providing insight into some populations that have been decimated by white-nose syndrome.

Is Hemiarthroplasty a major surgery?

This procedure is typically used to repair a broken or fractured hip but can also be used to treat a hip damaged by arthritis. There are many benefits of getting a hip hemiarthroplasty as opposed to a more intensive procedure, such as a total hip replacement.

Why would someone get a Hemiarthroplasty?

A hemiarthroplasty is generally used to treat a fractured hip. It may also be used to treat a hip damaged by arthritis.

What does the acetabulum do?

The acetabulum is a cup like socket formed by the connection of the three bones that make up our hip. This socket meets with the femoral head of the femur bone to form the hip joint. Together, these two parts of anatomy allow us to walk, run and move freely.