What is humeral head translation?
Humeral head translations were defined as the location of the humeral head center relative to the glenoid coordinate system. The humeral head center at 0° abduction was used as the reference position.
What is translation of the shoulder?
Glenohumeral translation is movement of the center of the humeral head with respect to the face of the glenoid (see figure 8). Glenohumeral translational laxity is the translation observed on examination of the joint. A substantial amount of laxity is characteristic of normal glenohumeral joints.
What does the word humerus means in medical terms?
Definition of humerus : the long bone of the upper arm or forelimb extending from the shoulder to the elbow.
What is the humeral joint?
The glenohumeral joint is a ball and socket joint that includes a complex, dynamic, articulation between the glenoid of the scapula and the proximal humerus. Specifically, it is the head of the humerus that contacts the glenoid cavity (or fossa) of the scapula.
What is anterior translation of the humeral head?
The proper alignment of humerus within the glenoid fossa is determined by anterior translation of humeral head (ATHH) within the glenoid fossa. In glenohumeral joint (GHJ), ATHH refers to the displacement of the humeral head (HH) relative to the glenoid due to an applied stress by the examiner.
What is glenohumeral ligament?
In human anatomy, the glenohumeral ligaments (GHL) are three ligaments on the anterior side of the glenohumeral joint (i.e. between the glenoid cavity of the scapula and the head of the humerus; colloquially called the shoulder joint).
What is transverse humeral ligament?
Transverse Humeral Ligament (THL) :Holds the tendon of the long head of biceps brachii muscle in the groove between the greater and lesser tubercle on the humerus (intertubercular sulcus).
What is the meaning of sternum in science?
: a compound ventral bone or cartilage of most vertebrates other than fishes that connects the ribs or the shoulder girdle or both and in humans consists of the manubrium, gladiolus, and xiphoid process. — called also breastbone.
Why is it called the humerus?
Etymology. The word “humerus” is derived from Latin: humerus, umerus meaning upper arm, shoulder, and is linguistically related to Gothic ams shoulder and Greek ōmos.