Shoulder and Upper Extremity Metrics

Question 1

What is the normal measurement for the acromiohumeral joint space?

Answer 1

7-11mm

Question 2

What line is parallel to humeral shaft?

Answer 2

Humeral shaft line

Question 3

What line is parallel to ulnar shaft?

Answer 3

Ulnar Shaft Line

Question 4

What line is transverse tangentially through most distal surfaces of trochlea and capitullem?

Answer 4

Humeral Articular LIne

Question 5

What angle is between humeral and ulnar shaft lines?

Answer 5

Carrying Angle

Question 6

What angle is between ulnar shaft line and humeral articular line?

Answer 6

Ulnar Angle

Question 7

What line is tangential from tip of radial styloid to base of ulnar?

Answer 7

Radioulnar Articular Line

Question 8

What line is parallel to shaft of radius?

Answer 8

Radial Shaft Line

Question 9

What line is across the most distal points on the articular surface of the radius?

Answer 9

Radius Articular Line

Question 10

What line measures the ulnar side angle between the 2 lines?

Answer 10

Radioulnar Line

Question 11

The palmer angle between 2 lines is known as what?

Answer 11

Radius Angle

Question 12

These lines/angles aid in assessment of radioulnar deformities caused by what?

Answer 12

Displaced Fractures

Question 13

What are the arcs of carpal alignment used to interpret?

Answer 13

Carpal Instabilities