The Hip Flashcards
Describe the auricular surface of the acetabulum (3)
Horse shoe shaped
Hyaline cartilage
Thickest at superior portion
Deepest layer of the acetabulum is the ____
Labrum
In the middle of the acetabulum is a____
Fat pad for absorption of shock/pressure
Attachments of the joint capsule of the hip (5)
Margin of acetabulum Transverse acetabular ligament Margin of obturator foramen Anterior aspect of trochanteric line Posterior aspect of neck of femur
Describe coverage of the synovial membrane of the hip
Lines joint capsule, covers hyaline cartilage, reflects back on itself to surround ligamentum trees and cover fat pad of acetabulum
Ligaments in the hip (5)
Transverse ligament Iliofemoral ligament Ischiofemoral ligament Pubofemoral ligament Ligamentum teres
Attachments of the transverse acetabular ligament
Spans the acetabular notch
Attachments of Iliofemoral ligament
AIIS to intertrochanteric line (Y shape, vert fibres to inf of line, oblique lat fibres to sup of line)
Attachments of pubofemoral ligament
Medial aspect of acetabular rim and superior pubic ramus to neck of femur and anterior medial joint capsule
(Blends with medial fibres of iliofemoral ligament)
Attachments of ischiofemoral ligament
Posterior acetabular margin to superior anterior aspect of femoral neck
Attachments of ligamentum teres
Margin of acetabular notch to fovea of head of femur
Attachments of glute max (8!)
Posterior to posterior gluteal line Posterior surface of ilium Dorsal surface of lower sacrum Dorsal surface of coccyx Sacrotuberous ligament Erector spinae aponeurosis Inserts: 2/3 to ITB Deep 1/3 attaches to gluteal tuberosity
Actions of glute max (1 primary, 4 secondary)
Primary: hip extension
Secondaries: abduction (sup fibres), adduction (deep fibres), lateral rotation of hip, posterior hip rotation
Innervation of glute max
Inferior gluteal nerve (L5-S2)
Attachments of glute med (2)
Origin Anterior to posterior gluteal line and superior to anterior gluteal line
Inserts into ridge on lateral surface of greater trochanter
Actions of glute med (6)
Abduction
Ant fibres internally rotate and flex
Post fibres externally rotate and extend
Level the pelvis
Innervation of glute med
Superior gluteal nerve L4 to S1
Attachments of glute min (3)
Origin between anterior and inferior gluteal lines
Anterior border of greater trochanter and joint capsule of hip
Actions of glute min (3)
Abduction
Flexion
Internal rotation
Innervation of glute min
Superior gluteal line, L4 to S1
Attachments of piriformis (2)
Anterolateral surface of sacrum
Superior border of greater trochanter of femur (passes anterior to sacrotuberous ligament)
Actions of piriformis (3)
Abduction (in flexion)
Lateral rotation
Stabilization
Innervation of piriformis
Nerve to piriformis, S1/S2
Attachments of obturator internus (3)
Posterior aspect of obturator membrane
Posterior aspect of ischium enclosing membrane
Medial surface of greater trochanter (superior to greater trochanteric fossa)
