The sternoclavicular (SC) joint is the linkage between the clavicle (collarbone) and the sternum (breastbone). The SC joint supports the shoulder and is the only joint that
connects the arm to the body
.
Why is the sternoclavicular joint important?
The sternoclavicular joint is
required to accommodate the movements of the upper limb
, and thus has a high degree of mobility. However, it also requires much stability, as it is the only connection between the upper limb and the axial skeleton.
What is the sternoclavicular joint function?
The sternoclavicular joint is a saddle-type joint that
allows movement of the clavicle
, predominantly in anteroposterior and vertical planes, although some rotation also occurs. The ability to thrust the arm and shoulder forward requires sound function of this joint.
What does the sternoclavicular joint articulate with?
The Sternoclavicular Joint (SC joint) is formed from the articulation of
the medial aspect of the clavicle and the manubrium of the sternum
. The SC joint is the only true articulation connecting the upper limb to the axial skeleton, and that it’s the least constricted joint in the human body.
What is sternoclavicular joint injury?
What is it? An SC sprain is
an injury to the joint where the clavicle (collarbone) meets the sternum (breastbone)
. These injuries are rare, requiring an accident with a lot of force, such as a tackle in football or rugby. Most SC sprains occur when an athlete is struck on the back or side of the shoulder.
How do you treat a sternoclavicular joint?
- Medications. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen and naproxen, can help reduce pain and swelling in the joint.
- Immobilization. …
- Activity modification. …
- Closed reduction.
Why does my sternoclavicular joint hurt?
Injuries to the SC joint are called sternoclavicular joint injuries and can include stretching or tearing of the ligaments. It is usually caused due to
severe trauma or a direct blow to the side of your body
such as in motor vehicle accidents or contact sports like football or rugby.
What movement does the sternoclavicular ligament prevent?
Structure and Function
It is a ligament that extends from the posterior aspect of the sternal end of the clavicle to the posterosuperior manubrium. The anterior sternoclavicular ligament also stabilizes the SC joint and
prohibits excessive superior displacement
.
Do all shoulder movements involve the sternoclavicular joint?
Motions include
elevation and depression, protraction and retraction
, and axial rotation (Fig. 4.8). In essence, all movements of the shoulder girdle (i.e., the scapula and clavicle) originate at the SC joint.
How do you stabilize the sternoclavicular joint?
- Stand, and hold a wand in both hands behind your back. Place your hands wide enough apart on the wand so it is comfortable, about the same width as your shoulders. …
- Move the wand back away from your body. …
- Hold the stretch for about 6 seconds.
- Repeat 8 to 12 times.
What is another name for clavicle?
Clavicle, also called
collarbone
, curved anterior bone of the shoulder (pectoral) girdle in vertebrates; it functions as a strut to support the shoulder.
How many degrees of freedom are there at the sternoclavicular joint?
The sternoclavicular joint is a diarthrodial joint with
three degrees
of freedom that is relatively immobile and incongruent. It is the only articulation between the upper limb and trunk.
Are visible collarbones healthy?
Q. Are visible collarbones considered healthy? A. Since prominent collarbones are linked to a skinny body frame, most people consider having a visible or prominent collarbone
as unhealthy
.
What should you not do with a broken collarbone?
- Avoid raising your arms above shoulder level.
- Avoid lifting anything that weighs more than 5 pounds (2.3 kg). …
- Stay out of all sports and physical education.
- Do all exercises to prevent elbow and shoulder stiffness and to help with muscle strength.
- Go to physical therapy, if needed.
Why is my clavicle bone swollen?
Any of the following reasons can cause a swollen clavicle:
Injury
: A bone injury or a trauma in the surrounding tissue can lead to a swollen clavicle. Bone disorders: Certain bone growth disorders like Paget’s disease can lead to a swollen collarbone.
