Hip Joint and Pelvic Girdle

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The Hip Joint and
Pelvic Girdle
Anatomy and Kinesiology
420:024
Objectives
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
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Bones, bony landmarks and joints
Muscles
Movements
Hip Joint

Hip joint (femur and acetabulum of pelvis)


Hip joint and pelvic girdle work together much like
shoulder joint and girdle


Relatively stable due to:
 Bony architecture
 Strong ligaments
 Large supportive muscles
Pelvis moves in response to trunk and/or thigh movement
Other bones to consider



Tibia
Fibula
Patella
Pelvic Girdle


Pelvic girdle  Pelvic bones, sacrum, coccyx
Pelvic bones:
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Sacrum:
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
Each pelvic bone is made up of three fused bones  ilium,
ischium, & pubis
Right & left pelvic bone joined together posteriorly by sacrum
Extends from spinal column with 5 fused vertebrae
Coccyx:

Extends posteriorly from sacrum with 3 fused vertebrae
Lateral femoral
epicondyle
Medial femoral
epicondyle
Patella
Lateral tibial
condyle
Medial tibial
condyle
Head of fibula
Tibial tuberosity
Joints

Hip joint

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AKA Acetabular femoral joint
Diarthrodial multiaxial ball and socket
Movements
Planes and axes
Joints

Pubic symphisis


Amphiarthrodial cartilagenous joint
Slightly moveable
Joints

Sacroiliac joints


Diarthrodial gliding joints
Slightly moveable
Objectives



Bones, bony landmarks and joints
Muscles
Movements
Muscles

Anterior:
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Iliopsoas
Sartorius
Rectus femoris
Tensor fasciae latae
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
Posterior:

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Gluteus maximus
Biceps femoris
Semitendonosus
Semimembranosus
Deep 6 external rotators
Lateral:
Gluteus medius
Gluteus minimus
Medial:




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Adductor brevis
Adductor longus
Adductor magnus
Gracilis
Pectineus
Iliopsoas
Sartorius
Rectus Femoris
Tensor Fasciae Latae
Muscles

Anterior:





Iliopsoas
Sartorius
Rectus femoris
Tensor fasciae latae




Posterior:





Gluteus maximus
Biceps femoris
Semitendonosus
Semimembranosus
Deep 6 external rotators
Lateral:
Gluteus medius
Gluteus minimus
Medial:





Adductor brevis
Adductor longus
Adductor magnus
Gracilis
Pectineus
Gluteus Maximus
Semitendinosus
Semimembranosus
Biceps Femoris
Six Deep External Rotators
Muscles
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Anterior:




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Iliopsoas
Sartorius
Rectus femoris
Tensor fasciae latae




Posterior:





Gluteus maximus
Biceps femoris
Semitendonosus
Semimembranosus
Deep 6 external rotators
Lateral:
Gluteus medius
Gluteus minimus
Medial:





Adductor brevis
Adductor longus
Adductor magnus
Gracilis
Pectineus
Gluteus Medius
Gluteus Minimus
Muscles

Anterior:





Iliopsoas
Sartorius
Rectus femoris
Tensor fasciae latae




Posterior:





Gluteus maximus
Biceps femoris
Semitendonosus
Semimembranosus
Deep 6 external rotators
Lateral:
Gluteus medius
Gluteus minimus
Medial:





Adductor brevis
Adductor longus
Adductor magnus
Gracilis
Pectineus
Adductor Brevis
Adductor Longus
Adductor Magnus
Pectineus
Gracilis
Objectives



Bones, bony landmarks and joints
Muscles
Movements
Movements

Flexion


Movement of femur straight
anteriorly
Extension

Movement of femur straight
posteriorly
Movements

Abduction


Movement of femur laterally
to side away from midline
Adduction

Movement of femur medially
toward midline
Movements

Horizontal adduction


Movement of femur in a horizontal or transverse
plane toward the midline
Horizontal abduction

Movement of femur in a horizontal or transverse
plane away from the midline
Movements

External rotation


Movement of femur laterally
around its long axis away from
midline
Internal rotation

Movement of femur medially
around its long axis toward
midline
Movements

Diagonal abduction


Movement of femur in a
diagonal plane away from
midline of body
Diagonal adduction

Movement of femur in a
diagonal plane toward midline
of body
Movements

Anterior pelvic tilt


Anterior movement of upper
pelvis; iliac crest tilts forward
in a sagittal plane
Posterior pelvic tilt

Posterior movement of upper
pelvis; iliac crest tilts
backward in a sagittal plane
Movements

Left lateral pelvic tilt


Left pelvis moves inferiorly in
relation to right pelvis in frontal
plane
Right lateral pelvic tilt

Right pelvis moves inferiorly in
relation to left pelvis in frontal
plane
Movements

Left transverse pelvic tilt


Left pelvis moves
posteriorly in relation to the
right in transverse plane
Right transverse pelvic tilt

Right pelvis moves
posteriorly in relation to the
left in transverse plane
LINE OF PULL
FLEXION

Superior movement of the femur in the sagittal plane
FLEXION
FLEXION
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
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Iliopsoas
Rectus femoris
Sartorius
Tensor fasciae latae
Pectineus
EXTENSION

Inferior movement of the femur in the sagittal plane
EXTENSION
EXTENSION


Gluteus maximus
Hamstrings
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
Biceps femoris
Semitendinosus
Semimembranosus
ABDUCTION

Superolateral movement of the femur in the
frontal plane
Gluteus minimus
ABDUCTION
ABDUCTION



Tensor fasciae latae
Gluteus medius
Gluteus minimus
ADDUCTION

Inferomedial movement of the femur in the
frontal plane
ADDUCTION
ADDUCTION
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Gracilis
Adductor magnus
Adductor longus
Adductor brevis
Pectineus
HORIZONTAL ABDUCTION

Movement of the femur away from the midline
of the body in the transverse plane

Muscles  Abductors
HORIZONTAL ADDUCTION

Movement of the femur towards the midline in
the transverse plane

Muscles  Adductors
INTERNAL/EXTERNAL ROTATION

Movement of the femur towards/away the midline in
the transverse plane along its long axis
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