Hip Flashcards
Orientation of acetabulum
Anterior
Lateral
Inferior
Labrum is thickest
Ant and sup
Femoral neck alignment (angle of inclination)
150 infants
120 adults
Coxa vara = less than 125
Coxa valga = more than 125
Femoral neck alignment (angle of anteversion)
Anteversion - more than 15 degrees (toe in)
Retroversion - less than 12 (toe out)
Norm = 12-15 of slight anteversion (and ER of tibia)
Infant normal is 40
Hip joint capsule is thickest
ANT
Hip ligaments - iliofemoral limits
Excessive extension, ER, Add
Y ligament
Hip ligaments - pubofemoral limits
Abd and excessive ext
Hip ligaments - ischiofemoral limits
Excessive ext
IR
Add in hip flexion
Limp/Lean
When walking on painful hip, you shift to lean over the painful hip to reduce moment arm of super incumbent wt force - abductors don’t have to work as hard now to so decreases force in painful hip
Holding cane
OPP side of painful hip
Will produce force in same direction as contralateral abd (painful side) so that the abd have to produce less work to stabilize
Full avulsion of mm ve. mm tear
Full avulsion will hurt less than a mm tear
HS strain common with
Hip flex and full knee ext
Hurdles, runners
Quad strain common with
Rapid deceleration
Trendelenburg
Standing on one leg - if weak abd of stance limb, OPPOSITE hip will drop
Most common type of hip dislocation
POSTERIOR
Because the capsule is weaker posteriorly
