MTH 4.0 Study Guide 2025/2026 Questions With Complete
Solutions
___ ct landmark is located inferior of the iliac spine on the
anterior wall on the acetabulum Correct Answers Anterior
notch
___ is when use the two pin clamp, 4 long, pelvic array adapter
Correct Answers In wound array
___ removes all haptic constrestraint from robotic arm but
supplies power and gives position numbers Correct Answers
Manual reaming
____ __ as defined as the angle between anterior pelvic plane
and the coronal plane in the sagittal view Correct Answers
Pelvic tilt
15 points must be captured to define the articular surface CT
landmark Correct Answers False- 30
A different between the planned cup center and the native COR
will not cause the reamer to lose power Correct Answers False
A loose checkpoint on the pelvis does not result in inaccurate
reduction results Correct Answers True
Anterior pelvic tilt is the anterior pelvic plane is rotated
posteriorly relative to the pelvic plane Correct Answers False
(rotated anteriorly
,Before you perform rio registration you must Correct Answers
A must attach end effector ro reamer and confirm serial number
and handle type
B place the robotic arm 90-90 end effect and visa dics toward
camera
C- lower the robot
D all of the above *****
Broach version is a measure the angle between the neck angle of
the broach and the epicondylar axis in the ____ view Correct
Answers Transverse
Changing the stem neck angle from 127 to 132 will increase hip
length and decrease offset Correct Answers True
Combined offset is calculated from the midline to the
mechanical axis Correct Answers False- canal/anatomical axis
Combined version is calculated the Correct Answers A planned
stem version and native cup
B planed stem version and cup version *****
C cup version and native stem
D broach version and cup verison
Combined version is calculated the Correct Answers A planned
stem version and native cup
B planed stem version and cup version *****
C cup version and native stem
D broach version and cup verison
, Distance reaming values will display for ___ seconds Correct
Answers 5
During femoral bone registration if points are not captured on
the ____ plane the combined offset values will be affected
Correct Answers Sagittal
During impaction after the cup has been placed in the
acetabulum, you disabled free arm to ___ Correct Answers
Enable the haptics
During manual verification the system will display 6 spheres
and the MPS will capture with button Correct Answers False
During pelvic array if we decide to use crest pin plamp the
sleeve of the ___ must be touching Correct Answers Bone
During reaming when the white turns to red on the model the
surgeon at least 2.3mm past their plan Correct Answers False
Following femur bone registration and after reseated the
checkpoint the system does not requires you to verify one sphere
in bone registration before proceed ing with the case Correct
Answers True
For better fixation the acetabular cup should be positioned in
subchondral bleeding bone Correct Answers True
For DA approach the robot must be position on the non-
operative side Correct Answers False- operative side
Solutions
___ ct landmark is located inferior of the iliac spine on the
anterior wall on the acetabulum Correct Answers Anterior
notch
___ is when use the two pin clamp, 4 long, pelvic array adapter
Correct Answers In wound array
___ removes all haptic constrestraint from robotic arm but
supplies power and gives position numbers Correct Answers
Manual reaming
____ __ as defined as the angle between anterior pelvic plane
and the coronal plane in the sagittal view Correct Answers
Pelvic tilt
15 points must be captured to define the articular surface CT
landmark Correct Answers False- 30
A different between the planned cup center and the native COR
will not cause the reamer to lose power Correct Answers False
A loose checkpoint on the pelvis does not result in inaccurate
reduction results Correct Answers True
Anterior pelvic tilt is the anterior pelvic plane is rotated
posteriorly relative to the pelvic plane Correct Answers False
(rotated anteriorly
,Before you perform rio registration you must Correct Answers
A must attach end effector ro reamer and confirm serial number
and handle type
B place the robotic arm 90-90 end effect and visa dics toward
camera
C- lower the robot
D all of the above *****
Broach version is a measure the angle between the neck angle of
the broach and the epicondylar axis in the ____ view Correct
Answers Transverse
Changing the stem neck angle from 127 to 132 will increase hip
length and decrease offset Correct Answers True
Combined offset is calculated from the midline to the
mechanical axis Correct Answers False- canal/anatomical axis
Combined version is calculated the Correct Answers A planned
stem version and native cup
B planed stem version and cup version *****
C cup version and native stem
D broach version and cup verison
Combined version is calculated the Correct Answers A planned
stem version and native cup
B planed stem version and cup version *****
C cup version and native stem
D broach version and cup verison
, Distance reaming values will display for ___ seconds Correct
Answers 5
During femoral bone registration if points are not captured on
the ____ plane the combined offset values will be affected
Correct Answers Sagittal
During impaction after the cup has been placed in the
acetabulum, you disabled free arm to ___ Correct Answers
Enable the haptics
During manual verification the system will display 6 spheres
and the MPS will capture with button Correct Answers False
During pelvic array if we decide to use crest pin plamp the
sleeve of the ___ must be touching Correct Answers Bone
During reaming when the white turns to red on the model the
surgeon at least 2.3mm past their plan Correct Answers False
Following femur bone registration and after reseated the
checkpoint the system does not requires you to verify one sphere
in bone registration before proceed ing with the case Correct
Answers True
For better fixation the acetabular cup should be positioned in
subchondral bleeding bone Correct Answers True
For DA approach the robot must be position on the non-
operative side Correct Answers False- operative side
