Biomechanics UPDATED ACTUAL Questions and CORRECT
Answers
1. What are some Coxa Valga: >135
atypical femoral Coxa Vara: <120
neck angles?
Normal: 120-135
2. What might you Coxa Vara @ hip = Genu Valgum @ knees
see at the knee (& visa versa)
in someone who
has a femoral
neck angle of
115?
3. How can you Anteroposterior angles of the femoral neck
measure antev- One line connects the posterior aspect of the medial and lateral condyles while
ersion or retro- the other line runs through midline of the femoral neck
version?
4. How is the 12-15 degrees anterior
"normal" femoral
neck positioned?
5. When is it con- Anteversion = anterior angle is greater than 15
sidered antever- Retroversion = anterior angle less than 8
sion?
When is it con-
, Biomechanics UPDATED ACTUAL Questions and CORRECT
Answers
sidered retrover-
sion?
6. How do peo- 1. The femur and lower limb will compensate by IR (to properly fit the femoral
ple with antevert- head in the acetabulum) Pigeon toes
ed hips compen-
sate? 2. They may ER at the tibia to avoid pigeon toes but the knees will still appear to
have that angle
-The IR may cause Genu Valgus @ knees and they may run funny
7. If a pt. femoral -The femur and lower limb will compensate by ER
neck angle is less
than 8 degrees,
what would you
find?
8. What motions do *Iliofemoral (anterior capsule)*
the ligaments of -All twist = Hyperextension
the hip resist? -Superior = ADD
-Inferior = ABD & ER
*Ischiofemoral (posterior capsule)*
-All twist = Hyperextension
-All resist = ADD, IR
-Loose in flexion!
*Pubofemoral (anterior capsule)*
-All twist = Hyperextension
-All resist = ABD, ER
, Biomechanics UPDATED ACTUAL Questions and CORRECT
Answers
9. What Osteokine- 120 - Flexion (need to sit)
matic ROM for 20 - ER
the hip are neces- 20 - ABD
sary for ADLs?
10. What is the LPP LPP = 30 flex, 30 ABD, slight ER
and CPP? CPP = full ext, ABD, IR
11. What are ROTATION!- Movement of the femoral head relative to the fixed pelvis
the arthrokine- Extension/hyperextension = Anterior rotation
matics at the hip? Flexion = Posterior rotation
ABD = Internar rotation
ADD = External rotation
IR = Posterior rotation
ER = Anterior rotation
12. How does the -ASIS moves down and anteriorly
pelvis move dur- -Sacrum moves up
ing an anteri- -Result = flexion at hip
or and posterior
pelvic tilt? -ASIS moves upward and posteriorly
-Sacrum moves down
-Result = extension at hip
13. If someone pre- Mechanically (M) = Head & trunk move forward
sented with Compensation of spine (C) = Lumbar spine extends
a *forward/ante-
rior pelvic tilt* (compensate to bring trunk towards a straight vertical to keep eyes on horizon)
how might they
compensate?
14. What happens to Mechanically (M) = Head & trunk move backward
the spine with a Compensation (C) = Lumbar spine flexes
Answers
1. What are some Coxa Valga: >135
atypical femoral Coxa Vara: <120
neck angles?
Normal: 120-135
2. What might you Coxa Vara @ hip = Genu Valgum @ knees
see at the knee (& visa versa)
in someone who
has a femoral
neck angle of
115?
3. How can you Anteroposterior angles of the femoral neck
measure antev- One line connects the posterior aspect of the medial and lateral condyles while
ersion or retro- the other line runs through midline of the femoral neck
version?
4. How is the 12-15 degrees anterior
"normal" femoral
neck positioned?
5. When is it con- Anteversion = anterior angle is greater than 15
sidered antever- Retroversion = anterior angle less than 8
sion?
When is it con-
, Biomechanics UPDATED ACTUAL Questions and CORRECT
Answers
sidered retrover-
sion?
6. How do peo- 1. The femur and lower limb will compensate by IR (to properly fit the femoral
ple with antevert- head in the acetabulum) Pigeon toes
ed hips compen-
sate? 2. They may ER at the tibia to avoid pigeon toes but the knees will still appear to
have that angle
-The IR may cause Genu Valgus @ knees and they may run funny
7. If a pt. femoral -The femur and lower limb will compensate by ER
neck angle is less
than 8 degrees,
what would you
find?
8. What motions do *Iliofemoral (anterior capsule)*
the ligaments of -All twist = Hyperextension
the hip resist? -Superior = ADD
-Inferior = ABD & ER
*Ischiofemoral (posterior capsule)*
-All twist = Hyperextension
-All resist = ADD, IR
-Loose in flexion!
*Pubofemoral (anterior capsule)*
-All twist = Hyperextension
-All resist = ABD, ER
, Biomechanics UPDATED ACTUAL Questions and CORRECT
Answers
9. What Osteokine- 120 - Flexion (need to sit)
matic ROM for 20 - ER
the hip are neces- 20 - ABD
sary for ADLs?
10. What is the LPP LPP = 30 flex, 30 ABD, slight ER
and CPP? CPP = full ext, ABD, IR
11. What are ROTATION!- Movement of the femoral head relative to the fixed pelvis
the arthrokine- Extension/hyperextension = Anterior rotation
matics at the hip? Flexion = Posterior rotation
ABD = Internar rotation
ADD = External rotation
IR = Posterior rotation
ER = Anterior rotation
12. How does the -ASIS moves down and anteriorly
pelvis move dur- -Sacrum moves up
ing an anteri- -Result = flexion at hip
or and posterior
pelvic tilt? -ASIS moves upward and posteriorly
-Sacrum moves down
-Result = extension at hip
13. If someone pre- Mechanically (M) = Head & trunk move forward
sented with Compensation of spine (C) = Lumbar spine extends
a *forward/ante-
rior pelvic tilt* (compensate to bring trunk towards a straight vertical to keep eyes on horizon)
how might they
compensate?
14. What happens to Mechanically (M) = Head & trunk move backward
the spine with a Compensation (C) = Lumbar spine flexes
