Thoracic Spine Flashcards
where is spine most narrow
t4-9
2 extra joint in t spine
costovertebral and costotransverse
What creates kyphosis in t spine?
post height is taller 2mm
which ribs articulate with their own vertebrae
T1, T10-12
which way does the inf facet face
what motion does this favor
AIM
SB + rotation
CV ligaments (2) what do they connect
CT ligaments (3) what do they connect
imaging projections for throacic spine and ribs
total flexion:
segmental flexion:
20-45
2-4 each
when does flexion occur
scap protreaction
what resists flexion
disc
facet jt
post ligaments
what happens with the center of the disc for flexion / extension
distracted/ compressed
facet during flexion
ribs during flexion (ant / post)
approximate / separate
Costo transverse joint during flexion
T1-7
8-10
anterior rotation and sup glide
ant rotation and PMS glides
Costo transverse joint during extension
ribs during extension (ant / post)
Costo sternal joint during flexion
anterior rotation (t1-10)
total extension
segmental extension
25
1-2
what UE movements cause extension
VB during extension
z joint facet extension
post / inf glides
motion restricted by (extension)
ant / post ribs (extension)
separate / approximate
Costotransverse during extension
t1-7 post rot + inf glide
8-10: post rot ILA glide
costosternal joints during extension
post rotation
lateral flexion total and segmental
25-40
7-9
lateral flexion VB
ipsi roll and glide
lateral flexion z joint facets
ipsilateral: inf/post (extension)
contralateral: superior/anterior (flexion)
lateral flexion ribs
ipsi approx
contra separate
lateral flexion CT joints
Latexion
rib and z joint move together in the beginning (Ipsi z joint will move down and back + rib approximation)
THEN z joint has more motion so pushes rib away
NOW: ipsi rib motion = ant rotation and sup glide
contra rib = post rot inf glide (this is why CL rot)
lateral flexion CT joint Ribs
t3-t7: ipsi–ant rotation sup glide
8-10 ipsi ant rotation PMS glides
lateral flexion CS joint rib motion
3-8
rotation motion total and segmental
rotation VB motion
ipsi roll
contra glide
rotation z joint motion
ipsilateral: inferior posterior glide
contra: superior anterior
Rotextion coupled motion
Rotexion CT joint
t3-t7: ipsi post rotation inf glide
contra
8-10: ipsi post rotattion ILA
contra
rotexion Costo sternal joint
3-8:
ipsi posterior
contra: anterior
rib motions during breathing
t1-2
3-7
8-10
pump handle (elevation)
bucket handle (lateral elevation)
caliper
inspiration CT joint / CV joint
1-7 superior and anterior to increase AP diameter
CV: inferior glide
8-10 ??? move PMS, glide ILA
10-12: fixed
inspiration costo sternal joint
1-2: elevation
3-8: post rotation
expiration rib motion CT joint
expiration rib motion CS joint
