Hip Injuries Bones of the Pelvic Girdle Pelvis (right and left) Parts to know: Sacrum • Pubic Symphysis Coccyx • Sacroiliac Joint Pelvis Bones of the Pelvis • Ilium • Ischium • Pubis Parts of the Pelvis Parts of the Pelvis to know: • Anterior Inferior Iliac Spine (AIIS) • Anterior Superior Iliac Spine (ASIS) • Iliac Crest • Posterior Superior Iliac Spine (PSIS) • Posterior Inferior Iliac Spine (PIIS) • Greater Sciatic Notch • Ischial Spine • Lesser Sciatic Notch • Ischial Tuberosity • Ramus of the Ischium • Pubic Tubercle • Superior Ramus • Inferior Ramus • Body of the Pubis • Obturator Foramen • Acetabulum Sacrum & Coccyx Parts to Know: • Sacrum • Base of the Sacrum • Sacral Canal • Median Sacral Crest • Sacral Cornua • Sacral Hiatus • Sacral Foramen • Ala • Lateral Sacral Crest • Apex of the Sacrum • Coccyx • Coccygeal Vertebrae • Coccygeal Cornu • Transverse Processes Bones of the Hip Pelvis Femur • • • • • • • • • • • • • • Parts to know: Greater Trochanter Head of the Femur Neck of the Femur Lesser Trochanter Shaft of the Femur Linea Aspera Lateral Condyle of the Femur Lateral Epicondyle of the Femur Medial Condyle of the Femur Medial Epicondyle of the Femur Patellar Surface Popliteal Surface Intercondylar Fossa Anterior view Posterior view Muscles of the Hip Rectus Femoris • Origin • Anterior Inferior Iliac Spine (AIIS) • Insertion • Tibial Tuberosity via the patellar tendon • Action • Extend the knee • Flex the hip Muscles of the Hip Vastus Lateralis • Origin • Lateral lip of linea aspera, gluteal tuberosity, and greater trochanter. • Insertion • Tibial tuberosity via the patellar tendon. • Action • Extend the knee. Muscles of the Hip Vastus Lateralis (posterior view) Muscles of the Hip Vastus Intermedius • Origin • Anterior and lateral shaft of the femur. • Insertion • Tibial tuberosity via the patellar tendon. • Action • Extend the knee. Muscles of the Hip Vastus Medialis • Origin • Medial lip of the linea aspera. • Insertion • Tibial tuberosity via the patellar tendon. • Action • Extend the knee. Muscles of the Hip Sartorius • Origin • Anterior Superior Iliac Spine (ASIS) • Insertion • Proximal, medial shaft of the tibia at the pes anserinus • Action • Flex the hip, laterally rotate the hip, abduct the hip, flex the knee, medially rotate the flexed knee Muscles of the Hip Sartorius (posterior view) Muscles of the Hip Gracilis • Origin • Inferior ramus of the pubis • Insertion • Proximal, medial shaft of the tibia at pes anserinus • Action • Adduct hip, medially rotate hip, flex the knee, medially rotate the flexed knee Muscles of the Hip Gracilis (posterior view) Muscles of the Hip Pectineus • Origin • • Superior ramus of the pubis. Insertion • • Pectineal line of the femur. Action • Adduct the hip, medially rotate the hip, assist to flex the hip. Muscles of the Hip Adductor Longus • Origin • Pubic tubercle. • Insertion • Medial lip of the linea aspera. • Action • Adduct the hip, medially rotate the hip, flex the hip. Muscles of the Hip Adductor Magnus • Origin • Inferior ramus of the pubis, ramus of the ischium and ischial tuberosity. • Insertion • Medial lip of the linea aspera and adductor tubercle. • Action • Adduct the hip, medially rotate the hip, flex the hip. • Posterior fibers of the Adductor Magnus also help to extend the hip. Muscles of the Hip Adductor Magnus (posterior view) Muscles of the Hip Adductor Brevis • Origin • Inferior ramus of the pubis. • Insertion • Pectineal line and medial lip of the linea aspera. • Action • Adduct the hip, medially rotate the hip, flex the hip. Muscles of the Hip Tensor Fascia Latae and the Iliotibial Band • Origin • Iliac crest, posterior to the ASIS • Insertion • Iliotibial tract (which then inserts on the tibial tubercle on the lateral aspect of the proximal tibia) • Action • Flex the hip, medially rotate the hip, abduct the hip Muscles of the Hip Iliacus • Origin • • Iliac fossa. Insertion • • Lesser trochanter of the femur. Action • Flex the hip, laterally rotate the hip, flex the trunk toward the thigh, tilt the pelvis anteriorly. Muscles of the Hip Psoas Major • Origin • • Bodies and transverse processes of lumbar vertebrae. Insertion • • Lesser trochanter of the femur. Action • Flex the hip, laterally rotate the hip, flex the trunk towards the thigh, tilt the pelvis anteriorly, assist in laterally flexing the lumbar spine. Muscles of the Hip Psoas Minor • Origin • • Body and transverse process of first lumbar vertebra. Insertion • • Superior ramus of the pubis. Action • Helps to create lordotic curvature in the lumbar spine, tilt the pelvis posteriorly. Muscles of the Hip Quadratus Lumborum • Origin • • Posterior iliac crest. Insertion • • Last rib and transverse processes of first through fourth lumbar vertebrae. Action • Laterally tilt pelvis (elevate side), laterally flex the vertebral column to the same side, assist in extension of the vertebral column, fix the last rib during forced inhalation and exhalation. Muscles of the Hip Semimembranosus • Origin • Ischial tuberosity. • Insertion • Posterior aspect of medial condyle of tibia. • Action • Flex the knee, medially rotate the flexed knee, extend the hip, assist in medially rotating the hip, tilt the pelvis posteriorly Muscles of the Hip Semitendinosus • Origin • Ischial tuberosity. • Insertion • Proximal, medial shaft of the tibia at pes anserinus. • Action • Flex the knee, medially rotate the flexed knee, extend the hip, assist to medially rotate the hip, tilt the pelvis posteriorly. Muscles of the Hip Biceps Femoris • Origin • Long head: Ischial tuberosity. • Short head: Lateral lip of the linea aspera. • Insertion • Head of the fibula. • Action • Flex the knee, laterally rotate the flexed knee, Long head: extend the hip and assist to laterally rotate the hip, tilt the pelvis posteriorly. Muscles of the Hip Quadratus Femoris • Origin • Lateral border of the ischial tuberosity. • Insertion • Intertrochanteric crest, between the greater and lesser trochanters. • Action • Laterally rotate the hip. Muscles of the Hip Obturator Externus • Origin • Rami of pubis and ischium, obturator membrane. • Insertion • Trochanteric fossa of the femur. • Action • Laterally rotate the hip. Muscles of the Hip Obturator Internus • Origin • Obturator membrane and inferior surface of the obturator foramen. • Insertion • Medial surface of the greater trochanter. • Action • Laterally rotate the hip. Muscles of the Hip Inferior Gemellus • Origin • Ischial tuberosity. • Insertion • Medial surface of the greater trochanter. • Action • Laterally rotate the hip. Muscles of the Hip Superior Gemellus • Origin • Ischial spine. • Insertion • Medial surface of the greater trochanter. • Action • Laterally rotate the hip. Muscles of the Hip Piriformis • Origin • Anterior surface of sacrum. • Insertion • Superior aspect of the greater trochanter. • Action • Laterally rotate the hip and abduct the hip when the hip is flexed. Muscles of the Hip Gluteus Minimus • Origin • Gluteal surface of the ilium between the anterior and inferior gluteal lines. • Insertion • Anterior aspect of the greater trochanter. • Action • Abduct the hip, medially rotate the hip, and flex the hip. Muscles of the Hip Gluteus Medius • Origin • Gluteal surface of the ilium, between the posterior and anterior gluteal lines, just below the iliac crest. • Insertion • Lateral aspect of the greater trochanter. • Action • Abduct the hip, flex the hip (anterior fibers), medially rotate the hip (anterior fibers), extend the hip (posterior fibers) and laterally rotate the hip (posterior fibers). Muscles of the Hip Gluteus Maximus • Origin • Coccyx, edge of sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments. • Insertion • Iliotibial tract (upper fibers) and gluteal tuberosity (lower fibers). • Action • Extend the hip (all fibers), laterally rotate the hip (all fibers), abduct the hip (all fibers), adduct the hip (lower fibers). ROM of the Hip Joint Adduction Torso Flexion Abduction Torso Extension Flexion Lateral Flexion Extension Lateral Rotation Internal Rotation Circumduction External Rotation Muscle Groups of the Hip Hip flexors •Psoas Major •Psoas Minor •Iliacus •Rectus Femoris •Tensor Fascia Latae •Sartorius Hip Extensors •Gluteus Maximus •Biceps Femoris •Semimembranosus •Semitendinosus •Piriformis Hip Adductors •Adductor Longus •Adductor Magnus •Adductor Brevis •Gracilis •Pectineus Hip Abductors •Gluteus Medius •Gluteus Minimus •Piriformis Muscles Groups of the Hip Medial Rotators •Gluteus medius •Gluteus Minimus •Tensor Fascia Latae Lateral Rotators •Gluteus maximus •Piriformis •Superior Gemellus •Inferior Gemellus •Obturator Internus •Obturator Externus •Quadratus Femoris Common Injuries Groin strains Myositis Ossificans Trochanteric Bursitis Avulsion Fractures/Apophysitis Testicular Contusion Osteitis Pubis Hip Pointer (contusion) Piriformis Syndrome Hip Dislocation Legg-Calve’-Perthes Disease (Coxa Plana) Avascular Necrosis Femur Fracture Thigh Contusion Slipped Capital Femoral Epiphysis Groin Strain Etiology Groin strain Pathology Treatment Trochanteric Bursitis Etiology Pathology Treatment • Injection procedure Testicular Contusion Etiology Pathology Treatment Hip Pointer (Contusion) Etiology • Hip pointer Pathology Treatment Hip Dislocation Etiology • Hip Dislocation Pathology Treatment Avascular Necrosis Etiology Pathology Treatment Femur Fracture Etiology Pathology Treatment Thigh Contusion Etiology Pathology Treatment Myositis Ossificans Etiology Pathology Treatment Avulsion Fractures/Apophysitis Etiology Pathology Treatment Osteitis Pubis Etiology Pathology Treatment Piriformis Syndrome Etiology Pathology Treatment • Piriformis Test • Piriformis Release Legg-Calve’-Perthes Disease (Coxa Plana) Etiology Pathology Treatment Slipped Capital Femoral Epiphysis Etiology Pathology Treatment For your quizzes: Students should be able to: • Identify the different parts of the bones of the hip on a labeling quiz. • Identify the different muscles of the hip on a labeling quiz. • Identify the different bones on a practical exam. • Identify the different hip injuries and conditions and be able to define them.