What is the anatomy of the clavicle?
The clavicle is a sigmoid-shaped long bone with a convex surface along its medial end when observed from cephalad position. It serves as a connection between the axial and appendicular skeleton in conjunction with the scapula, and each of these structures forms the pectoral girdle.
What muscles are attached to clavicle?
The clavicle is an S-shaped bone that is anchored by strong ligamentous attachments on both its medial and lateral ends. Muscular attachments to the clavicle include the sternocleidomastoid, pectoralis major, and subclavius muscles proximally and the deltoid and trapezius muscles distally.
What is the bump on the clavicle called?
An aneurysmal bone cyst of the clavicle is one rare type of tumor that can form, usually in people under the age of 20 . Some people may develop a non-cancerous, soft tumor called a lipoma near the collarbone.
What is the end of clavicle called?
The orientation of the clavicle can be distinguished by its ends: a broad, flat acromial end (referred to as the lateral third); and a round pyramidal-like sternal end (referred to as the medial two-thirds).
What is the difference between clavicle and collarbone?
The clavicle is the bone which joins the shoulder blade and the breast bone. It is a horizontally located long bone, and collarbone refers to the same bone. Therefore, there is no difference between clavicle and collarbone. There are two clavicles in the body: one in the left and the other on the right.
What is unique about the clavicle?
The clavicle is the only long bone in the body that lies horizontally. Together with the shoulder blade, it makes up the shoulder girdle. It is a touchable bone, and in people who have less fat in this region, the location of the bone is clearly visible, as it creates a bulge in the skin.
What is hard lump on clavicle?
A lump on the collarbone may be a cyst. Cysts are located under the skin and occur when fluid fills into a sac. These feel hard when you press on them from the skin’s surface and are not usually harmful or a sign of any other health condition.
Why does my clavicle have a lump?
If not a fracture, it could be due to an infection, a cyst or tumor, or an enlarged lymph node. A collarbone injury, such as a fracture or break, can sometimes cause a lump to form. The injury can range in severity from a simple fracture to a complex break that separates the bone into several pieces.
Why clavicle is called Little Key?
It receives its name from the Latin clavicula (“little key”), because the bone rotates along its axis like a key when the shoulder is abducted. The clavicle is the most commonly fractured bone. It can easily be fractured by impacts to the shoulder from the force of falling on outstretched arms or by a direct hit.
What is the most common site of clavicle fracture?
The most common fractures of the clavicle are in the middle of the shaft of the bone, approximately halfway between the sternum and the AC joint.
Why does the clavicle break so easily?
Your clavicle is easy to fracture because it’s frequently exposed to force. The middle third of your clavicle is its thinnest and outermost part and has a lack of support by muscles and ligaments, so it’s more vulnerable to injury.
Is the clavicle the strongest bone?
Femur or thigh bone is the strongest bone. Clavicle or collarbone is the weakest bone.
Why is the clavicle the most broken bone?
Because of the critical location of the clavicle, any severe force on the shoulder, such as falling directly onto the shoulder or falling on an outstretched arm, transfers force to the clavicle. As a result, the collarbone is one of the most commonly broken bones in the body.
Why is my clavicle bumpy?
Why is one of my clavicle sticking out?
Scapular winging involves one or both shoulder blades sticking out from the back rather than lying flat. It can happen as a result of injury or nerve damage. The scapula, or shoulder blades, are flat bones that connect the upper arm to the collar bone. When they come out of place, it can cause scapular winging.
What is the main function of the clavicle?
clavicle, also called collarbone, curved anterior bone of the shoulder (pectoral) girdle in vertebrates; it functions as a strut to support the shoulder.
What is the weakest point of clavicle?
Most common site of fracture is the middle third segment of the clavicle because its weakest point is at the junction of the middle and lateral third of the clavicle.
What is the best treatment for clavicle fracture?
The most common way to treat the fractures in the middle is with immobilization with either a sling or a special bandage called a figure-of-8 splint. Studies have shown that these fractures heal just as quickly and as well with a sling as with the figure-of-8 splint, so we recommend a sling in a majority of cases.