Transcript Thigh and Buttock

Thigh and Buttock
Thigh
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Three Compartments; ant., medial and
posterior
Lateral thigh consists of thickened fascia
of the lower extremity called the Fascia
Latae called the Iliotibial Band (Tract)
that serves as an insertion of the Tensor
Fascia Latae muscle
Extends distal and lateral to knee,
inserts on the tibia at Gerdy’s Tubercle
Thigh
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Anterior compartment = knee extensors and some
hip flexors; innervated by femoral nerve, blood
supply by femoral artery and its branches
Medial Compartment = hip adductors (some rotation
and flexion); innervated by obturator nerve and its
branch, blood supply by branches off deep femoral
artery and obturator artery
Posterior compartment = hip extensors and knee
flexors; innervated by tibial or common peroneal
nerves, blood supply by deep femoral artery
Anterior Compartment
Lateral Thigh (Fascia Late)
Posterior Thigh
Medial Thigh
A Reminder – Prime Movers of
Hip Flexion
Anterior Compartment
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Femoral Triangle
Borders =
Contents =
Course of femoral nerve and artery;
Adductor Canal- Adductor Hiatus
Muscles
Sartorius, Pectineus, Quadriceps
Femoral Triangle - Boundaries
Femoral Triangle - Contents
Anterior Muscles
Anterior Muscles
Anterior Muscles
Anterior and Medial Thigh
Medial Compartment
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Muscles
Gracilis, Adductor Longus, Adductor
Brevis, Adductor Magnus
Common actions
Pulled groin
Spastic adductors
Medial Compartment
Adductor Magnus
Posterior Compartment
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“Hamstrings”
Common Origin
Exception
Medial and Lateral Insertions
Posterior Muscles
Posterior Thigh
Posterior Thigh
Buttock
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Supericial
Gluteus Maximus
Gluteus Medius – reverse action
Gluteus Minimus
Tensor Fascia Latae – iliotibial band,
functional considerations
“Gower’s” Sign
Positive Trendelenburg
Gluteus Maximus
Gluteus Maximus
Gluteus Medius and Minimus
G Med., G Min, TFL
TFL
Trendelenburg
Deep Buttocks
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“External Rotators of the Hip”
Small Muscles
Mostly attach near or on greater trochanter
Excellent mechanical advantage for 1)
producing external rotation and 2) to help
maintain stability of the hip
All but one innervated by named nerves
specific to one or two of them
The exception is the obturator externus –
innervated by posterior brach of obturator n.
Deep Buttock
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Muscles:
Piriformis
Superior Gemellus
Obturator Internus
Inferior Gemellus
Quadratus Femoris
Obturator Externus
Deep Muscles of Buttocks
Deep Buttock
Deep Muscles
Deep Muscles
Deep Muscles
Blood Supply
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Femoral Artery
Deep Femoral (AKA Femoral Profunda)
Medial Circumflex
Lateral Circumflex
• Ascending Branch
• Lateral Branch
• Descending Branch
Blood Supply
Blood Supply
Blood Supply