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Femoroacetabular Impingement (FAI)
also known as hip impingement, is a condition that occurs when the bones of the hip joint don't fit together properly. This can cause the femoral head (ball of the hip) to pinch against the acetabulum (cup of the hip), which can lead to friction and abnormal wear and tear on the joint.
Two types: CAM and pincer
What muscles make up the pelvic floor?
levator ani muscles
coccygeus
What role do the sacrospinous and sacrotuberous ligaments play in pelvic motion?
They resist movement that would be intiated by the center of mass.
what are the levator ani muscles?
puborectalis
illiococcygeus
pubococcygeus
What artery branches off the external iliac artery?
Femoral artery
What are the two branches of the internal iliac artery and what 3 arteries come off of both branches respectively?
Anterior Division:
Obturator
Internal pudendal
inferior gluteal
Posterior Division:
iliolumbar
lateral sacral
superior gluteal
Gluteus Maximus: Ori, Ins, Innerv, Action
Origin: Post. Suface of the Ilium (Post. Gluteal Line), Dorsal surface of sacrum and coccyx, Sacrotuberous ligament
Insertion: Iliotibial Tract, Gluteal Tuberosity
Innervation: Inferior Gluteal Nerve (L5-S2)
Action: Hip Extension, External Rotation
Gluteus Medius: Ori, Ins, Innerv, Action
Origin: Outer Surface of Ilium
Insertion: Greater Trochanter
Innervation: Superior Gluteal Nerve (L5-S1)
Action: Hip Abduction, Internal Rotation
Gluteus Minimus: Ori, Ins, Innerv, Action
Origin: Outer Surface of Ilium
Insertion: Greater Trochanter
Innervation: Superior Gluteal Nerve (L5-S1)
Action: Hip Abduction, Internal Rotation
Tensor Fasciae Latae: Ori, Ins, Innerv, Action
Origin: ASIS, Anterior Iliac Crest
Insertion: Iliotibial tract, Gerdy's Tubercle (Tibia)
Innervation: Superior Gluteal Nerve (L5-S1)
Action: Hip Abduction, Internal Rotation
Piriformis: Ori, Ins, Innerv, Action
Origin: Anterior Sacrum
Insertion: Greater Trochanter
Innervation: Nerve to Piriformis (Vent. Rami S1, S2)
Action: External Rotation, Hip Abduction when in Flexion, Stabilize the Femoral Head
Obturator Internus: Ori, Ins, Innerv, Action
Origin: Pelvic Surface of Obt. For. and Obturator membrane
Insertion: Greater Trochanter
Innervation: Nerve to Obturator internus (L5-S1)
Action: External Rotation, Hip Abduction when in Flexion, Stabilize the Femoral Head
Superior Gemellus: Ori, Ins, Innerv, Action
Origin: Ischial Spine
Insertion: Greater Trochanter
Innervation: Nerve to obturator internus (L5-S1)
Action: External Rotation, Hip Abduction when in Flexion, Stabilize the Femoral Head
Inferior Gemellus: Ori, Ins, Innerv, Action
Origin: Ischial Tuberosity
Insertion: Greater Trochanter
Innervation: Nerve to quadratus femoris (L5-S1)
Action: External Rotation, Hip Abduction when in Flexion, Stabilize the Femoral Head
Quadratus Femoris: Ori, Ins, Innerv, Action
Origin: Ischial Tuberosity
Insertion: Quadrate tubercle on intertrochanter crest
Innervation: Nerve to Quadratus Femoris (L5, S1)
Action: External Rotation, Stabilize the Femoral Head
What 3 muscles rotate the femur medially to prevent the laterally pulling muscle from turning the hip?
Gluteus Med, Gluteus Min, TFL