Femure lecture week 2

Question 1

describe Coxa valga

Answer 1

When the femoral inclination angle has not reduced to 128

Question 2

what is inclination angle of hip joint

Answer 2

The angle between the long axis of HOF and NOF and the long axis of shaft of the femur

Question 3

Coxa vara

Answer 3

The decreased angle of inclination.when the femoral inclination has reduced past 128

Question 4

what is the inclination angle at 3 weeks after birth

Answer 4

150

Question 5

what is the aetiology of Coxa Valga

Answer 5

Lack of development of HOF &NOF relative to the shaft of the femur (Dysplasia).

Question 6

what is the etiology and presentation of coxa vara?

Answer 6

The primary defect in the endochondral ossification of the med asp of the NOF. the shorter limb on the affected side
Decreased abd+med rotation
Positive Trendlenberg test

Question 7

Describe Femoral anteversion

Answer 7

Turned tilted further towards the anterior asp

Question 8

Describe femoral retroversion

Answer 8

Turned or tilted away from the anterior asp

Question 9

what is the torsion angle

Answer 9

angle formed between the axis of HOF+NOF and TCA

Question 10

In what direction is Femoral antitorsion

Answer 10

Meidally rotated thigh

Question 11

in what direction is femoral retrotorsion

Answer 11

Laterally rotated thigh

Question 12

What is the poistion of Hip at birth in terms of antiversion and torsion?

Answer 12

• Anti-version=60
  Anti-torsion=30
  Therefore overally laterally rotated of 30

Question 13

what is the normal amount of antiversion in adults and when it happens?

Answer 13

normal range is 15-20. when the greater trochanter of femur is at its most prominent position

Question 14

Ryder’s test formula

Answer 14

Femoral torsion= Ryders test outcome+/- assumed amount of anteversion

Question 15

What is the ideal Ryders test result in adult?

Answer 15

adult med/lat rot 45/45 therefore riders test finding is 0+ assumed (15-20) which is equivelant of 15-20 antetorsion

Question 16

What is the Ryders test result in paediatric

Answer 16

Ryders test result is 20 med
20+ (15-20)=35-40 anti-torsion

Question 17

What is the pathological degree of anti-torsion normative data result?

Answer 17

anything above 55 upto 60

Question 18

what does a position of anti-version and retro torsion indicates in gait?

Answer 18

laterally rotated gait profile+ retrograde pronatory forces

Question 19

what does a position of retroversion and antetorsion indicate in gait?

Answer 19

Medially rotated gait profile+either supinated type foot or splayed pronated foot type

Question 20

Leg calf perthes disease

Answer 20

idiopathic juvenile avascular necrosis of the HOF
More common in boys than girls
most prevalent in children age 4-12

Question 21

what are the sign and symptoms of leg calve perthes disease

Answer 21

Pain at the groin or anterior hip joint, greater trochanter, or knee
limping, exacerbated with activity, and alleviated with rest
dec medial rotation and abd
positive Trendlenburg

Question 22

What is the treatment aim of legg calve perthes disease

Answer 22

preserve and maintain HOF sphericity
reduce the risk of degenerative arthritis
maintained in ext rot, abd and flexion

Question 23

what is SUFE

Answer 23

slipped upper femoral epiphysis or slipped capital femoral epiphysis
NOF+SHAFT displace upward and anteriorly.
It happens more in LF than RF. bc the left leg goes under the right leg

Question 24

SUFE presentation and sign and symptoms?

Answer 24

groin pain radiating to anteromedial thigh
antalgic limp
limited abd, flexion and int rot
common in obese male

Question 25

what is the most significant complication of SUFE?

Answer 25

AVN of the femoral capital epiphysis