The Hip Flashcards
Largest nerve in body
Sciatic nerve
Common at the greater trochanter, high in women with increased angle, leg length discrepancy or insertion of gluteus medius or IT band
Trochanteric bursitis
What is the Obers test?
- Athlete lays in unaffected side
- knee flexed out to 90 degrees
- lift top leg into abduction, slight hip extension
- allow the affected leg to drop into adduction
When is the obers test positive?
If the leg doesn’t drop then you have a tight IT band
What are innominate bones
Sacrum and coccyx
What is the purpose of the pelvis
Support the spine and trunk
Transfer weight to the lower limbs
Placement for bony attachment
What makes up the pelvis
Illium, ischium, pubis
Blow to illiac crest with immediate pain, spasms and transitory paralysis
Hip pointer (contusion)
Rare during sports, major trauma. Femur is adducted and flexed with deformity and nerve damage
Hip dislocation
Sudden acceleration/deceleration of the ischial tuberosity (hamstrings) and the AIIS (rectus femoris) with local pain and limited movement
Avulsion fracture
Repetitive stress on pubis by surrounding muscles with groin pain while running, doing squats or sit-ups
Osteitis pubis
Connects sacrum to illium
Sacroiliac joint
The acetabulum is cushioned by the labrum
Joint capsule
What is the hip joint made of
Femur head and acetabulum
What is the strongest ligament in the body
Y ligament of Bigelow (prevents hyperextension)
Prevents excessive adduction
Pubofemoral
Prevents internal rotation and adduction on posterior aspect
Ischiofemoral
Bridge that allows blood vessels and nerves enter the head of the femur
Ligamentum teres
Strong and protected, seldom injured, violent twisting produced by opponent, foot planted with trunk forced in opposite direction and athlete is unable to circumduct the thigh
Hip sprain
Twists with both feet on ground, stumbles forward, falls backward, steps in a hole with pain over joint, muscle guarding, radiating pain down back
Sacroiliac joint sprain
What is the FABERS/Patrick’s test
Place foot on the opposite extended knee of the painful SI joint and apply pressure downward on the bent knee
Positive FABERS/Patrick’s test
Pain felt in hip or SI joint means SI joint dysfunction
Anterior muscles
Illiacus
Psoas
Sartorius
Rectus femoris
Posterior muscles
Piriformis 3 gluteal muscles Biceps femoris Semitendinosis Semimembranosis
Medial muscles
Gracilis
Pectineus
Adductor longus, brevis, Magnus
Illiacus
Triangular shaped, flexes
Sartorius
Crosses medially across anterior thigh to do hip flexion and external rotation
Rectus femoris
Hip flexion and knee extension
Tensor fascia latae
Hip abduction
Lateral muscles
Tensor fascia latae
Piriformis
External rotation
Gluteus Maximus
Extension, adduction, helps get up from a sitting position