SPINE PLIF/TLIF MSC WEEK 9 UPDATED QUESTIONS AND
ANSWERS
what is ARTHRITIS OF THE SPINE - CORRECT ANSWER✅✅✅spondylosis
what is a Motion Segment - CORRECT ANSWER✅✅✅-Actuators
-Levers
-Pivots
-Restraints
Disc and facet joints act as - CORRECT ANSWER✅✅✅Pivots
Muscles act as - CORRECT ANSWER✅✅✅Actuators (Starts the motion)
Ligaments act as - CORRECT ANSWER✅✅✅Passive Restraints
Vertebral bodies and bony projections act as - CORRECT ANSWER✅✅✅Levers
What is the motion segment also called? - CORRECT ANSWER✅✅✅A unit
What does the motion segment allow for? - CORRECT ANSWER✅✅✅-Motion
-dissemination of stress
what are all motion segments affected by - CORRECT ANSWER✅✅✅degenerative changes
what is IVD DEGENERATION - CORRECT ANSWER✅✅✅degeneration of the disc leading to;
-decreased water in nucleus pulposis
-loss of disc height
,-tears of lamellar woven in the lamellae
where is Substance P - CORRECT ANSWER✅✅✅A neuropeptide present in afferent nerves in the
dorsal horn of the spinal column
what does substance P do - CORRECT ANSWER✅✅✅was originally discovered to be a mediator of
pain sensation
what does substance P play a role in - CORRECT ANSWER✅✅✅Plays a role in inducing inflammation
in response to a variety of irritants and may be part of the CNS pathways involved in psychological stress
what loading allows the endplate to recover - CORRECT ANSWER✅✅✅Endplate recovers under axial
loading
what is a "Bird Beak" appearance caused by - CORRECT ANSWER✅✅✅Severe Anterior Osteophytes
what is SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅Slippage of one vertebra over another
where is SPONDYLOLISTHESIS most likely to happen - CORRECT ANSWER✅✅✅Most often lumbar
because of the load
what are The 2 most common types of Spondylolisthesis - CORRECT ANSWER✅✅✅-Degenerative
-Isthmic
what are the 5 GRADES OF SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-Grade 1
-Grade 2
-Grade 3
-Grade 4
-Grade 5
, what is a grade 1 spondy - CORRECT ANSWER✅✅✅<25% of slippage
what is a grade 2 spondy - CORRECT ANSWER✅✅✅25-50% of slippage
what is grade 3 spondy - CORRECT ANSWER✅✅✅50-75% of slippage
what is grade 4 spondy - CORRECT ANSWER✅✅✅>75% of slippage
what is another name for a grade 5 - CORRECT ANSWER✅✅✅SPONDYLOPTOSIS
how do you fix a SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-instruments
-cages
-spondy reduction screws
what is spondyloptosis - CORRECT ANSWER✅✅✅Complete subluxation of one vertebra over
another
what are the three ways to adjust a spondy - CORRECT ANSWER✅✅✅-screws= old
-instrument reduction= new
-cages
ISTHMIC SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-Repetitive stresses on the pars
interarticularis create microfractures
-leads to scotty dog
describe what the microfractures lead to in ISTHMIC SPONDYLOLISTHESIS - CORRECT
ANSWER✅✅✅-Over time, the pars elongates and creates an ISTHMUS of bone
ANSWERS
what is ARTHRITIS OF THE SPINE - CORRECT ANSWER✅✅✅spondylosis
what is a Motion Segment - CORRECT ANSWER✅✅✅-Actuators
-Levers
-Pivots
-Restraints
Disc and facet joints act as - CORRECT ANSWER✅✅✅Pivots
Muscles act as - CORRECT ANSWER✅✅✅Actuators (Starts the motion)
Ligaments act as - CORRECT ANSWER✅✅✅Passive Restraints
Vertebral bodies and bony projections act as - CORRECT ANSWER✅✅✅Levers
What is the motion segment also called? - CORRECT ANSWER✅✅✅A unit
What does the motion segment allow for? - CORRECT ANSWER✅✅✅-Motion
-dissemination of stress
what are all motion segments affected by - CORRECT ANSWER✅✅✅degenerative changes
what is IVD DEGENERATION - CORRECT ANSWER✅✅✅degeneration of the disc leading to;
-decreased water in nucleus pulposis
-loss of disc height
,-tears of lamellar woven in the lamellae
where is Substance P - CORRECT ANSWER✅✅✅A neuropeptide present in afferent nerves in the
dorsal horn of the spinal column
what does substance P do - CORRECT ANSWER✅✅✅was originally discovered to be a mediator of
pain sensation
what does substance P play a role in - CORRECT ANSWER✅✅✅Plays a role in inducing inflammation
in response to a variety of irritants and may be part of the CNS pathways involved in psychological stress
what loading allows the endplate to recover - CORRECT ANSWER✅✅✅Endplate recovers under axial
loading
what is a "Bird Beak" appearance caused by - CORRECT ANSWER✅✅✅Severe Anterior Osteophytes
what is SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅Slippage of one vertebra over another
where is SPONDYLOLISTHESIS most likely to happen - CORRECT ANSWER✅✅✅Most often lumbar
because of the load
what are The 2 most common types of Spondylolisthesis - CORRECT ANSWER✅✅✅-Degenerative
-Isthmic
what are the 5 GRADES OF SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-Grade 1
-Grade 2
-Grade 3
-Grade 4
-Grade 5
, what is a grade 1 spondy - CORRECT ANSWER✅✅✅<25% of slippage
what is a grade 2 spondy - CORRECT ANSWER✅✅✅25-50% of slippage
what is grade 3 spondy - CORRECT ANSWER✅✅✅50-75% of slippage
what is grade 4 spondy - CORRECT ANSWER✅✅✅>75% of slippage
what is another name for a grade 5 - CORRECT ANSWER✅✅✅SPONDYLOPTOSIS
how do you fix a SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-instruments
-cages
-spondy reduction screws
what is spondyloptosis - CORRECT ANSWER✅✅✅Complete subluxation of one vertebra over
another
what are the three ways to adjust a spondy - CORRECT ANSWER✅✅✅-screws= old
-instrument reduction= new
-cages
ISTHMIC SPONDYLOLISTHESIS - CORRECT ANSWER✅✅✅-Repetitive stresses on the pars
interarticularis create microfractures
-leads to scotty dog
describe what the microfractures lead to in ISTHMIC SPONDYLOLISTHESIS - CORRECT
ANSWER✅✅✅-Over time, the pars elongates and creates an ISTHMUS of bone
