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Flashcards in Thoracic Spine - Review Deck (87)
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1

What structures provide strengthening and stabilizing forces to, and affect the motion of the T-spine?

- The ribs

2

Do inter-rib motions, or intervetebral motions stop first?

- Inter-rib stops first

3

What arthrokinematic motion occurs in the T-spine at the end range of osteokinematic motions?

- Motion of transverse process on a fixed rib

4

What type are the arthrokinematics relationships of the joint surfaces of the costotransverse joints?

- Convex rib on concave transverse process for ribs 1 - 7/8
- Planar surfaces for ribs 8 - 10

5

What is the ROM for T-spine flexion? (goniometry and tape changes)

- 0 - 25/45 degrees
- ~ 2.7 cm

6

What 4 structures limit an opening semental motion of the T-spine?

- Supraspinatus
- Infraspinatus
- Capsular ligaments
- Posterior longitudinal ligament

7

What type of force is produced on the nucleus pulposis during T-spine flexion?

Posteriorly directed

8

At what 3 joints does motion occur during flexion of the T-spine?

- Costovertebral
- Sternocostal
- Costochondral

9

What is the ROM for T-spine extension? (goniometry and tape changes)

- 0 - 25/45 degrees
- ~ 2.5 cm

10

What limits segmental T-spine extension/ closing?

- Approximation of spinous processes

11

What type of force is produced on the nucleus pulposis during T-spine extension?

- Anterior force

12

At what 3 joints does motion occur during extension of the T-spine?

- Costovertebral
- Sternocostal
- Costochondral

13

What is normal ROM lateral flexion of the T-spine? (goniometry only)

- 0 - 20/40 degrees

14

What type of force is produced on the nucleus pulposis during lateral flexion of the T-spine?

- Lateral force

15

What type of motion occurs at the intercostal spaces during lateral motion on the convex and on the concave side?

Convex: Widen, enlarging rib cage
Concave: Close, shrinking rib cage

16

What is the normal ROM of rotation of the T-spine? (goniometry only)

- 0 - 35/50 degrees

17

What limits the opening and closing motions of the T-spine during rotation?

- Rib cage deformations

18

Through what structures of the T-spine does the axis of rotation pass?

- The bodies of the vertebrae

19

What motion occurs at the disc during T-spine rotation? What effect does this have in comparison with the L-spine?

- Disc twists and rotates as opposed to shearing in the lumbar spine allowing for greater rotation ROM per segment

20

How much rotation is allowed per segment in the T-spine? The L-spine?

T-spine: 3 degrees
L-spine: 1 degree

21

What are the joint surfaces of the costovertebral joint?

- Convex rib on both vertebral bodies, and the annulus of the disc

22

What structure divides the inside of the joint capsule of the costovertebral joint into 2 sections?

- An interosseus ligament

23

What ligament reinforces the joint capsule of the costovertebral joint?

- Annular ligament

24

What are the joint surfaces of the costotransverse joints?

1 - 7/8: convex rib tubercle on concave transverse process
8 - 10: Transverse surfaces

25

What 3 ligaments stabilize ribs 8 - 10?

- Interosseus
- Posterior costotransverse
- Superior costotransvserse

26

Through what joints does rib motion occur?

- Costotranverse
- Costovertebral

27

Describe the 4 planes of motion of the ribs?

Upper ribs: In sagittal plane (raises sternum and expands AP dimension of rib cage
Middle ribs: 45 degrees to frontal plane
Lower ribs: In frontal plane (Medial lateral expansion of the rib cage )

28

What type of motion occurs at the Lower ribs?

Bucket handle

29

What type of motion occurs in the inferior ribs?

Caliper motion

30

What type of motion occurs in the upper ribs?

- Pump handle