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OCPM Biomechanics Arthrometric Evaluation
Quesions
72
Medical
Professional
09/27/2009

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Term
What doe sthe Arthrometric Exam include?
Definition
"Intrumentation, ROM, Structural Position."
Term
What are the Instruments used in the Arthrometric Exam?
Definition
"Gravity Goniomenter, FF Measuring Device, Orthopedic Evaluaiton Device and Tractograph."
Term
What is the Gravity Goniometer best used for?
Definition
Frontal Plane Leg deviation and malleolar position.
Term
T/F The Gravity Goniometer can be attached to a stationary base?
Definition
TRUE
Term
What is a FF Measuring Device best used for?
Definition
"Measuring FF to RF relationship, the locking position of the MTJ."
Term
Is a FF measuring Device commoly used?
Definition
No
Term
Are Gravity Goniometers used much now days?
Definition
No
Term
What is the Orthopedic Evaluation Device (OED) best used for?
Definition
Everything! Can be used for all measurments.
Term
T/F The OED is easy to use?
Definition
TRUE
Term
What is a Tractograph best used for?
Definition
"Joint ROM, RF ROM and can be used for FF to RF relationship. (Useful in evaluating radiographs also)"
Term
What is the ROM of the IPJs?
Definition
Sagittal Plane motion.
Term
Is dosiflexion from a fully extend postion pathological?
Definition
"No, but abnormal."
Term
Is plantar flexion at a fully extended position normal?
Definition
Yes
Term
What is the minimum amount of plantarflexion required?
Definition
"Unknown, doesn't matter."
Term
What is the most important thing to observe at the IPJ?
Definition
That plantarflexion from a fully extended position.
Term
What is the ROM of the MPJ?
Definition
Transverse and Sagittal Plane motion.
Term
What motion is neeed at the 1st MPJ for normal propulsion?
Definition
65 degrees or greater
Term
T/F Motion needed in the lesser MPJs is slightly less than 65 degrees?
Definition
TRUE
Term
T/F The IPJ is the center for motion?
Definition
"FALSE, MPJs are."
Term
Where is the motion assesed for the MPJ?
Definition
By dosiflexing the digit on the corresponding met. Bisect the Met shaft and the shaft of the digit being assessed. (Non-weght bearing)
Term
What is the ROM of the 1st Ray?
Definition
Axis angulates approximately 45 degrees from the frontal and sagittal planes and only slightly from the transverse plane.
Term
Is the exam of the 1st Ray reliable?
Definition
No
Term
T/F Motion occurs in 3 planes simultaneously with dorsiflexion and plantarflexion being the primary motion.
Definition
TRUE
Term
What is hypermobile 1st ray?
Definition
Movement out of its normal range or plane of motion.
Term
T/F Normaly there is more dorsiflexion tha plantarflexon relative to the 2nd met head.
Definition
FALSE
Term
What is the best way to asses the 1st ROM?
Definition
STJ in neutral with the MTJ pronated. This will allow for consistant measurements for both feet.
Term
T/F Pronation of the STJ will increase 1st Ray ROM?
Definition
TRUE
Term
How do you examin the ROM of the 1st Ray?
Definition
Hold the 2nd-5th met head between the thumb and forefinger of one hand. Thumb plantar. With the thumb and forefinger of the opposite hand holding the 1st met head. In the neutral position the fingers on the first met head will be slightly higher and lower due to the 1st met head increased thickness to the 2nd.
Term
"If the position of the fingernails of either the thumbs or forefingers are equal in the 1st ray evaluation, then what is suggested?"
Definition
1st Ray is neutral.
Term
If plantar flexion exceeds dorsiflexion then it indicates what?
Definition
Plantarlexed 1st Ray deformity.
Term
What are the ROM for the MTJ?
Definition
"Oblique axis produced dorsiflexion and abduction (with pronation, visa versa for supinaiton) This is FF in relation to RF motion."
Term
T/F Supination at the STJ increased the total range of motion at the MTJ in both supination and pronation?
Definition
FASLE
Term
How many degrees of what motion is needed about the LMTJ to compensate for calcaneal eversion?
Definition
4-6 degrees of inversion
Term
How many degrees of calcaneal eversion will still allow normal fx?
Definition
4-6 degrees of eversion
Term
T/F Total ROM of the MTJ depends on the STJ?
Definition
TRUE
Term
Are there actural mesurement taken for the MTJ evaluation?
Definition
No
Term
What are the ROM for the STJ?
Definition
3 plane simultaneously.
Term
T/F Eversion of the Calcaneus signifies what?
Definition
STJ Pronation
Term
What is the Total Minimum ROM in the frontal plane of the STJ?
Definition
8-12 degrees
Term
What the Total Normal ROM in the frontal plane of the STJ?
Definition
"30 degrees (20 inversion and 10 eversion, 2:1 Ration)"
Term
Are patienst supine or prone for the STJ evaluation?
Definition
Prone (this allows calcaneus to be viewed on the frontal plane)
Term
How do you perform the STJ evaluation?
Definition
"Prone, adducting the foot for inversion and abducting the foot for eversion."
Term
Why do you not just invert or evert the calcaneus?
Definition
Skin moves too much
Term
What is the ROM for the AJ?
Definition
Primarily sagittal plane motion.
Term
"How much dorsiflexion is required for normal AJ, when th knee is extended?"
Definition
10 degrees (the MTJ is also completely pronated)
Term
What position is the patient in during the AJ evaluation?
Definition
Prone (avoids the patient flexing the knee)
Term
How do you perform the AJ evaluation?
Definition
"Prone, passively dorsiflex the foot on the leg while keeping the STJ NEUTRAL.."
Term
What is the most importat thing to do during the AJ evaluation?
Definition
"Keept the STJ neurtal, while passively dorsiflexing the foot."
Term
What do you measur in the AJ evaluation?
Definition
Angle formed by the plantar aspect of the foot and the distal 1/3 of the leg. The plantar aspect of the foot extended from the plantar aspect of the calcaneus to the skin beneath the 5th met head.
Term
What is considered the lower 1/3 of the leg?
Definition
Musculoteninous jx of the triceps surae to just proximal to the lateral malleolus.
Term
How many degrees of plantar flexion do you need for normal plantarflexion?
Definition
20 degrees (45 is normal)
Term
What is the reason we do the Silverskold Test?
Definition
Eliminates the influence of the gastroc muscle problem (thus gastroc equinus or gastroc/soleus equinus)
Term
What is KJ ROM?
Definition
Normally only sagittal plane (120 to 130 degees of flexion)
Term
What is the ROM for the HP?
Definition
Transverse Plane (45 degrees internal and external)
Term
How is neurtal for the HP calculated?
Definition
"55 degrees external and 35 degrees internal, then neurtal is 10 degrees exteral. (half of total ROM subtracted form the higher individual ROM)"
Term
How is the ROM for the HP evaluated?
Definition
Patient may also be supine with knees flexed with lower leg hanging over the edge of the examining table.
Term
How is the Locking of the MTJ evaluated?
Definition
"Prone, Knee place in fronal plane, STJ neurtal, dorsiflexory force is applied to the neck of the 5th met."
Term
What are the reference points for the MTJ evaluation?
Definition
"Bisection of the calcaneus, perpendicular to the gound and met heads (measure FF invered or everted to RF)"
Term
"What does a FF inversion (with the MTJ fully pronated, thus STJ in NEUTRAL!) signifiy?"
Definition
FF Varus
Term
What position is the patient in for the Calcaneal Stance (relaxed) evaluation?
Definition
"Standing, facing away from you"
Term
What is the Calcaneal Stance (relaxed) Evaluation good for?
Definition
"Measues frontal plane deviation, calcaneus in relation to the floor. (range from everted to rectus most of the time)"
Term
What is the position of the patient for the Calcaneal Stance (neutral) evaluation?
Definition
"Standing, facing away, STJ in Neutral position."
Term
What is the Calcaneal Stance (neutral) evaluation good for?
Definition
Measures (frontal plane deviation) bisection of the calcaneus in relation to the floor. Normally inverted or neutral.
Term
How do you tell if the STJ is neutral?
Definition
Medial and lateral concavity are equal.
Term
What is an inverted neutral calcaneal position indicative of?
Definition
Varus Deformity
Term
What is the normal Malleolar Position when the STJ is neutral?
Definition
13 to18 degrees externally
Term
T/F Pronation decreased exteranl malleolar position?
Definition
TRUE
Term
T/F Knees should be extended parallel to the examining surface for Malleolar Postion?
Definition
TRUE
Term
What are the 3 opions for Frontal Plane Leg Deviation?
Definition
"Tibal Varum or Valugum, or Neutral/Recuts"
Term
T/F Tibia Valgus = Inverted Leg on the Frontal Plane?
Definition
FALSE
Term
Where is the apex of a FF deformity?
Definition
MTJ
Term
T/F STJ must be in neutral with MTJ maximally pronated and locked to asses the FF as a structural position?
Definition
TRUE
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