hip-y Flashcards
e+i
what is a normal angle of inclination of the proximal femur?
125 degrees
what is the angle associated with coxa vara in the proximal femur? how does this change the stress put on the femoral neck?
105 degrees
increases the stress on the neck
what is the angle of inclination associated with coxa valga? how does this change the stress put on the femur?
140 degrees
increases the compression on the head of the femur, the is more joint coverage
what is range of torsional angle is considered normal?
10-15 degrees
what torsional angle is associated with excessive anteversion?
35 degrees
what is a major risk of excessive anteversion? what is a walking pattern you might see to help you diagnose this?
increases oa risk
toe in due due to increased coverage of the femoral head
what torsional angle is associated with retroversion?
5 degrees
what health risks are associated with retroversion?
what kind of walking pattern might you see here?
toe out gait pattern
increased oa risk
as shown in the craig’s test, if a patient has increased internal rotation, will this produce increased anteversion of retroversion? what position is in the patient in?
increased anteversion
prone, leg bent to 90 degrees
as shown by the craig’s test, if a patient has increased external rotation, will you expect them to have increased retroversion or increased anteversion?
retroversion
in flexion, is the lumbo-pelvic rhytm ipsildirectional or contradirectional?
ipsidirectional
in coming to extension, is lumbo-pelvic rhythm contralateral or ipsidirectional?
contradirectional
in normal forward bending, what motion is first?
lumbar motion
in lumbopelvic rhythm during rising from a forward flexed position, what motion occurs first?
hip extension
if a patient is displaying a right pelvic drop, what type trendelenburg gait is this?
left meaning there is left sided weakness
what are the three primary abductors?
gluteus medius
gluteus minimus
tensor fasciae latae
what are the three secondary abductors?
piriformis
sartorius
rectus femoris
where is our center of mass generally located?
50% of height
s2 level
what is normal postural sway for body segment oscillations?
1-2 degrees
what is postural sway measurements for the body’s center of pressure?
1-2 cm
where is the base of support roughly located?
area between the heels and tip of toes
what are 4 aspects of posture that are affected in excessive lumbar lordosis?
anterior pelvic tilt
vertebrae/discs: posterior compression
tight posterior longitudinal ligaments
stretched anterior longitudinal ligaments
what types of tightness and force increases occur in increased anterior tilt?
tight hip flexors
increased shear forces at l5/s1
what are two ways two compensatory strategies for excessive anterior tilt?
thoracic kyphosis
cervical lordosis
what will increased posterior pelvic tilt cause to tighten? what will be compressed
hamstrings
anterior compression on anterior discs
will functioning in lumbar flexion decrease or increase with increased posterior pelvic tilt?
decrease
what are two side effects that are likely to occur in thoracic kyphosis?
stretch and weakness of thoracic paraspinals
anterior compression of thoracic vertebrae
what happens to the upper cervical spine in forward head pathology? what can this cause?
excessive extension subocciptial shortening, which can lead to headaches
what happens to the lower cervical spine in forward head pathology?
increase flexion leading to extensor fatigue
what happens to the pecs and scapula in forward shoulder pathology? what is a movement pattern you might see here?
tight pecs affecting the brachial plexus
abducted scapula causing stretch weakness of scapula muscles (rhomboids, middle traps, lower traps) as shown by winging.
if your patient’s left rib is hiked superiorly to the right in forward flexion, how would you document this?
left scoliosis
if you give a patient a SMALL forward perturbation, what strategy will they use and what is the order of which muscle groups will they use?
ankle pattern ankle dorsiflexors hip flexors abs neck flexors
what is the order of muscle groups activated in a backward fall using a hip strategy?
abdominals, quads, dorsiflexors
what are five dysfunctions associated with slouched sitting?
increased stress on the posterior longitudinal ligaments
prolonged l-spine flexion
greater joint-shear and compression than standing
increased loading and compression of anterior joints