Hip general information Flashcards
the Sacroilliac joint is a
gliding joint
the pubic symphysis is a
amphiarthrotic symphysis
Acetqbulofemoral/iliofemoral is a
ball and socket joint
the articular surfaces for the sacroilliac joint are?
concave (sacrum) on convex (ilium)
Which articular surface of the iliofemoral joint is concave vs convex
convex (head of femur) on concave (acetabulum)
what is the AROM for the hip
flexion (straight leg) 90 (bent leg) 120 extension 30 internal rotation 40 external rotation 50 abduction 50 adduction 30
Sacroiliac (SIJ) AROM is
SIJ extention/ flexion ~8*
the Sacroiliac coupled motions are
Nutation = SIJ flexion
Counter- Nutation = SIJ extension
resting position of hip
30 abduction 30 flexion and slight external rotation
closed packed position of hip
full extension abduction and internal rotation
normal end feels for pelvis/hip
Flexion and adduction: elastic or tissue approximation
straight leg raise: elastic
extension and abduction: elastic/ firm
internal and external rotation: elastic/ firm
abnormal end feels
bony = osteoarthritis
late myospasm = instability
Hip joint forces of gravity
standing = 0.3x body weight
standing on one leg = 2.5x body weight
walking = 3x body weight
running = 4.5x body weight
what is the Q angle
a line drawn from the ASIS through the center of the patella and a line drawn from the center of patella to the center of the tibial tuberosity. Q = quadriceps
the Q angle should be what for women
should be greater in women.
<22 with knee extended
<9 w/knee in 90* flexion
the Q angle in men should be
<18 with knee extended
<8 with knee in 90* flexion
a large Q angle may predispose some one to?
osteoarthritis and or patellar dislocation
name the pelvis/ hip ligaments
Inguinal anterior (ventral) sacroiliac posterior (dorsal) sacroiliac superior pubic and inferior pubic obturator membrane anterior longitudinal sacrotuberous sacrospinous hip joint capsule
what muscles are weak and/or tight during an anterior pelvic tilt dysfunction
Tight: erector spinae, hip flexors, quadriceps
Weak: hamstrings, glutes, abdominals
what muscles are weak and or tight during a posterior pelvic tilt dysfunction
Tight: Abdominal muscles, hamstrings, gluteus maximus
Weak: erector spinae, hip flexors
what is the capsular pattern of restriction in the hip
internal rotation > extension > abduction
what is the general shape of the pelvis for males and females
Male: narrow and thick
Female: wide and shallow
what is the shape of the pelvic inlet
Male: heart shaped
Female: circular shaped
what is the size of the pelvic outlet
male: relatively small
Female: relatively large
