Observations and Measurements Flashcards
plumb line
- from external auditory meatus to the ground to fall on calcaneal cuboid joint
- gives a vertical reference of where the line of gravity is and how it acts on the joints of the body
head-neck measures
can give us an idea of flexion/extension tendencies of neck
- plumb line and external auditory meatus - should run through ear
- tragus to wall difference
- CV angle
tragus to wall difference
mean?
subject stands with heels and glutes against the wall and tester measures horizontal difference between tragus and wall
- mean: 11 cm
CV angle
cranial vertebral angle
- use C7 spinous process and tragus of the ear to create an angle with a horizontal line
forward head posture and headaches
FHP people tend to have more tension type headaches
- this is unrelated to migranes
is CVA impacted by the thoracic spine?
yes - CVA depends on C7 which sits on T1 as a platform for the whole cervical spine
- more exaggerated thoracic kyphosis means a smaller CVA
Cobb angle
a radiographic measuring of the curvature of spinal segments
- draw lines from top and bottom vertebral bodies of the segment and then draw lines perpendicular to them
- the angle these lines meet at is the Cobb angle
mean Cobb angle thoracic spine
40° from T4 -T12 (starts at T4 because this is where the curvature of thoracic spine really begins)
kyphosis
mean Cobb angle of lumbar spine
45° from L1-L5
lordosis
h
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thoracic kyphosis trends with age
- progressively increases with age (gravity causes intervertebral discs to degenerate)
Dowager’s hump
a type of hyperkyphosis
- most common in post-menopausal women
- after menopause, bone density often decreases so bone can change shape over time because of excessive bone loss
lumbar lordosis trends with age
- increases between ages 2 and 20 based on how humans start movement
- decreases up to 20% in adults
- pregnancy can increase lumbar lordosis to accommodate new balance of weight
gender differences in lumbar lordosis
women generally have a deeper lordosis than males
pelvic parameters and lumbar lordosis
pelvis (esp. the sacrum) serves as base for lumbar spine
- depending on the sacral slope, the lordosis may be deeper or more shallow
- pelvic tilt also affects lumbar lordosis