Tucker Questions - Mod 3

Question 1

According to Tucker, how are primary lesions created?

Answer 1

Due to sudden straining of articulation beyond its normal range of motion so that it is unable to return spontaneously

Occur amoungst physiological realm

Fixed in position or in such a way that something must have an altered quality of way of moving

Qualitative issue

Question 2

According to Tucker, the factors of the lesions are

Answer 2

Motion beyond normal under high tension

Assuming of an angle; indentation of a surface by a projecting portion

High tension of part or all of a restraining ligament

Question 3

According to Tucker, what principle of technic seems to be most neglected and to be responsible for most of the failures in technic?

Answer 3

This principle—that joints must be at the limit of their possible normal motion before corrective force can be transmitted through them or made effective on them is the point that seems to be most neglected, and to be responsible for most of the failures in technic.

Question 4

What is the correction of a lesion usually indicated by

Answer 4

The instant of correction of a lesion is usually indicated by a “pop.

Question 5

What fills the space between two articular surfaces?

Answer 5

Gas or fluid may collect there under the differential pressure, but also the tissue may expand to fill the negative space

Gas is created by chondrocytes
Result of articulations releasing

Articulation being released

Question 6

What is the “pop” in proportion to?

Answer 6

The “pop” is in proportion to the suddenness of the release and t he degree of elastic tension of the ligaments and of the elasticity of the tissues compressed.

Principles of correction:
To transmit force, articulations must be at the limit of their motion.
Effort must be properly focused on lesion.
It must be so directed as to release the engaged points.
One side of a joint used as fulcrum for the other.
Elastic spring to overcome elasticity of parts.

Question 7

What is the cause of the primary lesion?

Answer 7

Primary lesions are due to sudden straining of articulation beyond the normal range of motion so that it is unable to return spontaneously. There is then found to be a double deviation, a deviation in two directions from a mid position as though having reached the normal limit motion and being strained farther it turned in some abnormal way

Question 8

What is responsible for most of the failures in technic?

Answer 8

This principle—that joints must be at the limit of their possible normal motion before corrective force can be transmitted through them or made effective on them is the point that seems to me most neglected, and to be responsible for most of the failures in technic.

Question 9

What is more effective than steady force, according to Tucker?

Answer 9

With all articulations at their limit and the leverage adjusted, a quick spring is much more effective than steady force

Question 10

Tucker refers to a “masked lesion”. What is a masked lesion?

Answer 10

There exists a variety of lesions that may be called masked lesions, in which the deviation is not evident in one position, but is in another.

This is why we need to test and access patients in various positions

Obvious lesions are evident in ALL positions

Question 11

According to Tucker, what is the best proof of a lesion?

Answer 11

The best proof of a lesion is that it can be corrected. Remembering that lesions are easy to correct (usually) and hard to create, one seems justified in trying to correct any deviation.

Question 12

According to Tucker, if a lesion resists correction, what is it termed?

Answer 12

If it resists corrections that is one evidence that it is a bony abnormality and not a lesion

Question 13

According to Tucker, what accessory sign of lesion is the most reliable?

Answer 13

Limitation to motion is the most reliable of the accessory signs of lesion
Motion:
Limitation motion
Quality of motion

Question 14

What are the “ball bearings” of the lumbar spine?

Answer 14

The cores of intervertebral discs then become important. These cores are found nearer the posterior margins of the discs. They are more solid than the rest of the disc, and act on the principle of ball bearings.

Nucleous pulposes - pushes vertebra apart
Rehydrate during sleep at night

Needed for a pivot point to help keep the vertebral bodies apart
Cause of many lesions - when the IV Discs get worn down

Question 15

Where is the greatest danger of lesion?

Answer 15

The greatest danger of lesion is where the limitation to motion is greatest

Question 16

What is the mechanical law?

Answer 16

It is a mechanical law that there is a point of mechanical weakness where a large part joins a small part; as in a nail driven in a wall, the nail will bend just where it leaves the wall.

Question 17

How should a student form a mental picture of side-bending-rotation in the lumbar spine?

Answer 17

To form a mental picture of side-bending-rotation, the student should first experiment with the actual bones, then with these bones using elastic bands in place of ligaments (although it is not possible to arrange these bands just as the ligaments in the body are arranged); and should then use the living body.

Question 18

What causes the limitation to the motion of side-bending-rotation of lumbar vertebrae?

Answer 18

Anterior spinous ligament

Question 19

Which ligament limits the proper motion of extension in the lumbar spine?

Answer 19

ALL

Question 20

Which ligament limits the proper motion of flexion in the lumbar spine?

Answer 20

PLL

Question 21

According to Tucker, why is exaggeration of extension in the dorsal spine not really possible?

Answer 21

Limitation to motion of extension is from tension on discs and bony contact of articular processes with bone below.

Question 22

Why is it beneficial to work on the dorsal spine orientation in a horizontal position (prone) such as a 4 legged animal?

Answer 22

In the horizontal position of the animal spine, all tensions are such that the vertebrae are automatically held in normal relation, or if in lesion tend to be drawn to the normal. The following technic utilizes this principle, reproduces the tensions as in the horizontal animal spine.