What is the lesser tuberosity of the humerus?

Avulsion Fracture Lesser Tuberosity of The Humerus is a rare injury that usually occurs in association with fractures involving two or three parts of the proximal humerus or in association with a posterior fracture dislocation of the shoulder joint [1-3].

What is lesser tuberosity fracture?

Isolated avulsion fracture of the lesser tuberosity is an unusual phenomenon that usually occurs in association with fractures involving two or three segments of proximal humerus or as a part of a posterior fracture dislocation. [1–3] The typical mechanism of injury is an abduction external rotation trauma to shoulder.

What is tuberosity of the humerus?

The greater tuberosity is the bony bump in the shoulder area that is located laterally on the humerus. The humerus or arm bone, is the bone located between the elbow and the shoulder. Fractures to the greater tuberosity is common and unfortunately can interfere with a person’s rotator cuff.

What is greater and lesser tuberosity?

Lesser Tubercle – a smaller bony knob that sits just medial (closer to the midline) and anterior (in front of) to the greater tubercle. This is the insertion point for the only muscle of the rotator cuff that doesn’t insert on the greater tubercle. Crest of greater tubercle – Crest is a Latin term meaning ridge.

What muscles attach to the lesser tuberosity?

The subscapularis muscle originates at the subscapular fossa and inserts into the lesser tubercle of the humerus.

What attaches lesser tuberosity?

Lesser tubercle The subscapularis muscle attaches at this tubercle and the transverse ligament of the shoulder also attaches on its lateral part.

What muscles attach to the lesser tubercle of humerus?

Where is the lesser tuberosity located?

humerus
The lesser tuberosity is located inferior to the head, on the anterior part of the humerus, Its very prominent and palpable. Bicipital (intertubercular) groove is located between the two tuberosities.

Where is the lesser tubercle of the humerus located?

The lesser tuberosity is located inferior to the head, on the anterior part of the humerus, Its very prominent and palpable. Bicipital (intertubercular) groove is located between the two tuberosities.

Is the lesser tubercle anterior or posterior?

anterior
The projection of the lesser tubercle is anterior from the junction that is found between the anatomical neck and the shaft of the humerus and easily identified due to the intertubercular sulcus (Bicipital groove).