Various Postural Measurements

Question 1

Plum line (line of gravity) placement

Answer 1

passes anterior to atlanto-occipital joint, though ear lobe, through cervical vertebral bodies, though acromion process at shoulder, anterior to thoracic vertebrae, though lumbar vertebral bodies and anterior to sacrum, slightly posterior to axis of hip through greater trochanter, slightly anterior to axis of knee just behind patella, slightly anterior to lateral malleolus

Question 2

Optimal Alignment, Axial Plane

Answer 2

ears equidistant from acromian processes, head symmetrical. Ribcage should appear symmetrical with respect to pelvis (no rotation)

Question 3

Center of Gravity

Answer 3

center of object’s weight, just anterior to S2

Question 4

Effects of center of gravity of body joint on joint movement

Answer 4

Falls through axis of joint=no movement falls anterior to joint access=segment moves anterior falls posterior to joint axis=falls posterior

Question 5

Leg Length

Answer 5

Measure from ASIS of to medial malleolus If assymetrical, can determine if from short femur (knee comes up sooner) or tibia (knees side by side, but one lower leg is obviously shorter)

Question 6

Q-angle

Answer 6

1) Draw line from ASIS to midpoint of patella, extend the line distally 2) Draw a line from the midpoint of the patella to the tibial tuberosity Female normal: 15-20 degrees Male Normal: 5-10 degrees

Question 7

FEISS line alignment

Answer 7

FEISS line connects lower border of medial mallelus and head of first metatarsal bone (navicular falls on this line in NWB position)

Navicular distal to line: pronated foot

Navicular proximal to line: supinated foot

supination= ankles lean outward, high arch

pronation=ankles lean inward, flat foot

Question 8

Femur angles for normal, varus, and valgus

Answer 8

Coxa Varus: less than 120 degrees

Normal: 120-135 degrees

Coxa Valgus: greater than 135 degrees

Question 9

Naming Scoliotic Curves

Answer 9

curves named according to shape and direction of CONVEXITY of curve

Question 10

Definition of Varus and Valgus

Answer 10

Valgus: distal segment deviates medially

Varus: Distal segment deviates laterally

Question 11

Femoral Torsion

Answer 11

Angle of femoral neck relative to femoral condyles in axial plane

Medial femoral Torsion: less than 8 degrees

Anteversion: 8-15 degrees

Lateral Femoral torsion: greater than 15 degrees