Morphometric evaluation of adult acromion process
in North Indian population.
The type of the acromion process
was identified and also the following parameters of acromion process
were measured with the help of a vernier calliper and a measuring tape--
This prevents the head of the humerus from being lifted up and banging into the acromion process
above, and also increases the efficiency of the movement of the distal humerus.
Accomplishing this goal required knowledge of the shoulder's range of motion as well as the forces it is capable of generating in each direction, which led to our second goal, the quantification of the shoulder's range of motion and measurement of the forces the shoulder can comfortably generate at the point of the acromion process
. The third goal of this study was to develop a method to quantitatively assess prosthesis control.
The target was a 40 mm sphere positioned 90% of arm's length (measured from acromion process
to tip of index finger), aligned with the reaching arm's shoulder joint height and lateral location.
(3) The indirect mechanism, which is more common, is caused by a hyperabduction stress that directs the humeral neck superiorly against the acromion process
, forcing the humeral head out of the glenoid fosse inferiorly.
Biomechanical studies by Fukuda and coworkers (15) have shown that the conoid ligament plays a primary role in constraining anterior and superior displacement of the clavicle while the trapezoid is an important stabilizer in axial compression toward the acromion process
. (6,15) It is, therefore, important to consider reconstructing both the AC and CC ligaments when faced with a displaced AC joint injury.
Mid-arm circumference (cm) was measured at the level of mid-arm taking acromion process
and olecranon as reference points.
lateral to the omphalion (centre of the umbilicus)), chest (taken obliquely along the natural cleavage line of the pectoral between the axilla and nipple) and thigh (vertical fold taken midway between the inguinal crease and proximal border of the patella) skinfolds were measured for male subjects and the triceps (vertical fatfold taken midway between the olecrenon process and acromion process
on the posterior aspect of the arm), suprailiac (slight diagonal fatfold taken immediately superior to the iliocristale) and thigh (vertical fold taken midway between the inguinal crease and proximal border of the patella) skinfolds were measured for female subjects.
The stationary arm was placed along the lateral midline of the humerus in line with the acromion process
, and the moving arm was placed along the lateral midline of the radius in line with the radial styloid process.
Some authors recommended using an imaginary triangle to isolate the injection site (Rodger & King, 2000), while others suggested a site two finger breadths below the acromion process
(Potter & Perry, 2005).
The supraspinatus muscle originates from the body of the scapula and extends between the head of the humerus and the acromion process
of the scapula to insert on the greater tubercle of the humerus.
(Rotator Cuff Tendonitis, Bursitis) Description Impingement syndrome is characterized by pain in the shoulder due to inflammation of the tendons of the rotator cuff or the bursa that sits between the rotator cuff and the acromion process
. Normally, the humeral head gets closer to the acromion when the shoulder is moved, particularly when reaching overhead.
Therefore, an algorithm was developed for positioning the work piece relative to the midpoint of the participant's upper arm (this midpoint is defined as the point midway between the acromion process
of the shoulder and the lateral epicondyle of the elbow).