Front angulations - Page 3

Let us go back to Mr. Lanting radiograph, and trace bones and joints to best possible correctness. I will trace the shoulder blade on the ridge, and shoulder joint to my best guess as it is not very clear in radiograph. Let us see what angles we get.

These angles are measured by autocad 

Shoulder angle 122

If you look at the shoulder blade, there is a line named s, I assumed it is the ridge, if I am wrong and that line is not actually the ridge and ridge runs in exact center of shoulder blade then we get a better angle of 55

These angles are measured by autocad

Shoulder angle is 116

Mr. Lanting thinks to assume a shoulder ideal lay of 45 is incorrect and should be round 55 same as that of the upper arm ideal angle.
The radiograph he presented supports his belief. For me I will stick to Mr. Louis assumption of 45 degrees for shoulder blade ideal lay, I see it achievable and better suits stability of the forequarter assembly.

The good thing Mr. Lanting did is he radiographed dogs in movement and that is facts we can build on to understand front reach, the role of humerus length and angle, also role of shoulder blade lay effect on front reach. This is a radiograph of a good shoulder in full front reach

Let us trace the bones

And let us measure all angles

Above angles are measured by autocad

Have a look at the green light, interesting, right?

To make it more interesting I will copy those bones and place them on the dog itself for you to start visualizing

Here the bones only