EXSC 261 - hip joint and pelvic girdle

Hip joint

• stable

• Weight bearing and locomotion

• Ball and socket

• Hard to dislocate

avascular necrosis

Femoral head collapse

Hip replacement

Femur cut off

Hip resufacing

Cap top of femur

Anterior compartment muscles

Flex the hip or abduct the hip

Anterior muscles

Iliposoas, pectineus, sartorius, rectus femoris

Medial muscles

adductor brevis, adductor longus, adductor mangus, gracilis

Iliposoas

Iliposoas Origin

Lower boarders of the transfer processes of lumbar vertebrae 1-5, sides of the bodies of the last thoracic T12, all lumbar vertebrae 1-5, intervertebral fibocartilages, base of sacrum

Iliposoas Insertion

Lesser trochanter and shaft just below, pectineal line and iliopectinel eminence

Iliposoas Movement

Flexion of hip, external rotation of femur

Iliposoas Nerve

Lumbar and femoral nerve L2-L4

Pectineus

Pectineus Origin

Space 1 inch wide on front of pubis above crest

Pectineus Insertion

Rough line leading from lesser trochanter to linea aspera

Pectineus Movement

Flexion, addiction, and external rotation of hip

Pectineus Nerve

Femoral nerve L2-L4

Sartorius

Sartorius Origin

Anterior superior iliac spine, notch just below spine of ilium

Sartorius Insertion

Anterior medial condyle of tibia

Sartorius Movement

Flexion of hip and knee, external rotation of thigh as it flexes hip and knee

Sartorius Nerve

Femoral nerve L2, L3

Rectus femoris

Rectus femoris Origin

Anterior inferior iliac spine, posterior groove above acetabulum

Rectus femoris Insertion

Superior aspect of patella, patellar tendon to the tibial tuberocity

Rectus femoris Movement

Flexion of hip, extension of knee

Rectus femoris Nerve

Femora, nerve L2-L4

Adductor brevis

Adductor brevis Origin

Front of the inferior pubic ramus just below the origin of the longus

Adductor brevis Insertion

Lower 2/3 of pectineal line of femur, upper half of medial lip of linea aspera

Adductor brevis Movement

Addiction of hip, external rotation as it adducts hip

Adductor brevis Nerve

Obturator nerve L3, L4

Adductor longus

Adductor longus Origin

Anterior pubis just below its crest

Adductor longus Insertion

Middle third of linea aspera

Adductor longus Movement

Addiction of hip, assists in flexion of hip

Adductor longus Nerve

Obturator nerve L3, L4

Adductor mangus

Adductor mangus Origin

Edge of entire ramus of the pubis, ischium, and ischial tuberocity

Adductor mangus Insertion

Whole length of linea aspera, inner condyloid ridge, and adductor tubercle

Adductor mangus Movement

Addiction of hip, external rotation as hip adducts

Adductor mangus Nerve

ANTERIOR - Obturator nerve L2-L4, POSTERIOR - sciatic nerve L4, L5, S1-S3

Gracilis

Gracilis Origin

Anterior medial edge of descending ramus of pubis

Gracilis Insertion

Anterior medial surface of tibia below condyle

Gracilis Movement

Addiction of hip, flexion of knee, internal rotation of hip

Gracilis Nerve

Obturator nerve L2-L4