Pelvic limb locomotion pt. 1

Retraction phase (recovrey)

Beginnng of stride

All joints extended

Protraction (advance)

End of stride

All joints flexed

Flexion angles

Alternate surfaces on the hindlimb

Hip extensors

Superficial Gluteals

Middle Gluteals

Deep Gluteals

Hip flexors

Iliopsoas (agonist)

Tensor fasciae lata (synergist)

Sartorius (synergist)

Iliopsoas is comprised of the…

Iliacus & psoas major

Deep gluteal muscle

Weakest hip extensor, more so stabilizing the joint; abducts the limb

Middle gluteal muscle

Piriformis

Powerful extensor

Medial hip rotator

Hindlimb adductors

Gracilis (symphysial tendon)

Pectineus - clinically important but not in contraction

Adductor

Sartorius - flexor

External obturator - rotate limb laterally

Hindlimb rotators

Quad femoris

Internal obturator

Femoral triangle

Utilized for pulse evaluation

Femoral vein

IV injection - major blood supply of the hindlimb

Pectineus

Transected to relieve pain in cases of hip dysplasia

Hindlimb rotators - Deep

Rotate limb laterally/externally

Internal Obturator

Gemelli

Quadrantis femoris (extensor)

Articularis Coxae

Where do you access hip joint cavity

Transect articularis coxae

The hip joint is what kind of joint?

Ball and socket; provides femoral head stabilityWh

What structures provide femoral head stability

Ligament of the femoral head

Transverse acetabular ligament

Canine hip dysplasia

Common large breeds

Shallow acetabulum &/pr flattened femoral head

Slope of the hip can be signs of ?

Decreased ROM caused by dysplasia or luxation

Surgical treatment of Hip Dysplasia

Femoral head osteotomy

Full hip replacement

Hip Joint Arthrocentesis

Difficult

Palpate Greater Trochanter and intert needle in a disto-medial direction; avoid the sciatic nerve

The sciatic nerve is responsible for innervating

Entire hindlimb

Pectineus tendon tendonectomy

Procedure for reliving pain/pressure and rehabilitating dysplastic dogs

Caudal hip extensors

AKA Hamstring

Large muscle mass

IM injection site - avoid the sciatic nerve

Medial hip extensors

Bicep femoris

IM Injection point

Flex hip joint; extend or flex stifle; extend tarsal joints