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The Anatomy of the Hip and Pelvis
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Bony Landmarks of Femur
Bony Anatomy Femur = Thigh Bone Longest and strongest bone Designed for maximum support and mobility during weight- bearing activity Bony Landmarks of Femur Head of Femur Neck of Femur Greater Trochanter Lesser Trochanter
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Bony Anatomy Pelvis Bony ring formed by two coxal bones
3 Sections: Ilium, Ischium, and Pubis Sacrum Coccyx
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Bony Anatomy
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Bony Anatomy Iliac Crest Anterior Superior Iliac Spine (ASIS)
Bony Landmarks of Pelvis Iliac Crest Anterior Superior Iliac Spine (ASIS) Ischial Tuberosity Acetabulum Anterior Inferior Iliac Spine (AIIS)
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Hip Joint Hip joint Femoral Acetabular Joint Ball and socket joint
Head of femur = ball Acetabulum of pelvis = socket Extremely stable joint Great bony stability -- deep acetabulum! Strong ligaments Strong muscles
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Pelvic Girdle Pelvic girdle = Pelvis (2 coxal bones), sacrum, and coccyx Two joints 1. Sacroiliac joints Between sacrum and pelvis (ilium) Common place for low back pain 2. Pubic Symphysis Fibro-Cartilage Allows some movement to occur
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Hip joint and pelvic girdle work together
Pelvis supports spine and trunk and transfers weight to legs
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Stabilizing Structures
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(Moving thigh forwards)
Hip Range of Motion Hip Flexion (Moving thigh forwards)
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Hip Extension (Moving thigh backwards)
Hip Range of Motion Hip Extension (Moving thigh backwards)
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Hip Range of Motion Hip Adduction (Moving the thigh closer to midline)
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Hip Range of Motion Hip Abduction
(Moving the thigh away from the midline)
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Hip Internal Rotation (Head of femur rolls forward- close the gate)
Hip Range of Motion Hip Internal Rotation (Head of femur rolls forward- close the gate)
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Hip External Rotation (Head of femur rolls backward- open the gate)
Hip Range of Motion Hip External Rotation (Head of femur rolls backward- open the gate)
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Hip Muscles: Hip Flexors
Location: Anterior (FRONT) side of hip joint Iliopsoas Rectus femoris Sartorius
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Hip Muscles: Hip Extensors
Location: Posterior (BACK) side of hip joint Gluteus Maximus Hamstrings Semimembranosus Semitendinosus Biceps Femoris
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Hip Muscles: Hip ABDuctors
Location: Lateral side of hip joint Gluteus Medius Tensor Fasciae Latae (TFL)
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Hip Muscles: Hip ADDuctors
Location: Medial side of hip joint Adductor Brevis Adductor Longus Adductor Magnus Gracilis
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Hip Muscles: Hip Internal Rotator
Location: Deep posterior hip (underneath gluteals) Gluteus Minimus
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Hip Muscles: Hip External Rotator
Location: Deep posterior hip (underneath gluteals) Piriformis
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