name the angle of inclination of the shoulder complex
The angle of inclination of the shoulder complex refers to the angle formed between the glenoid fossa (part of the scapula) and the long axis of the humerus (upper arm bone)
The angle of inclination of the shoulder complex refers to the angle formed between the glenoid fossa (part of the scapula) and the long axis of the humerus (upper arm bone). This angle plays a crucial role in determining the range of motion and stability of the shoulder joint.
The angle of inclination can vary among individuals and is influenced by various factors including age, sex, and genetic factors. Typically, the angle of inclination ranges between 125 to 135 degrees in adults.
A larger angle of inclination (more than 135 degrees) is termed a “coxa valga,” whereas a smaller angle (less than 125 degrees) is called a “coxa vara.” Coxa valga may lead to increased stress on the glenoid labrum and joint instability, while coxa vara can limit the range of motion and decrease joint stability.
It is important to note that the angle of inclination is only one aspect of shoulder complex anatomy and does not solely determine the overall function and mechanics of the shoulder joint. Other factors such as the orientation of the humeral head, muscle strength, ligament integrity, and overall joint health also contribute to shoulder function and stability.
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