The Forefoot Joints at University Of South Australia | Flashcards & Summaries

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where will the 1st ray's motion occur at?

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@ 1st cuneonavicular 

@ 1 & 2 intercuneiform 

@ 2nd metatarsal 

@ 1st cuneiform 

@ 1st metatarsocuneiform joint 

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how to determine the amount of arthritis that can develop?

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the amount of motion + amount of pronation 

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what are the axis of motion for the 1st ray?

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posterior medial and slightly superior to anterior lateral and slightly inferior. 45 degrees from SP & FP

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what are the motion for the 1st ray?

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DF with INV & PF & EV 


Df with foot Pro and PF in propulsion to enable normal MPJ extension 

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what motion is enabled when 1st ray PF? 

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Hallux is able to achive 70 degrees of DF nessesury for propulsion acting as a ginglymoarthrodial 

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define ginglymoarthrodial 

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i is when a joint having the form of both ginglymus & arthrodia ( hinge and sliding joints at sesamoid)

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what is the ideal metatarsal parbola?

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2>1>3>4>5 ( 2>1=3>4>5)

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what are some variations in metatarsal parabola?

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2nd >>, 1st << or 1st >>

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what does those variations may lead to? 

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sbluxation of 1st MPJ and hallux limitus and rigidus. 

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what are the 1st ray pathologies? 

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1. 1 st ray may be Pf or Df - if congenital usually bilateral and normal ROM. Vice versa if acq. (unilateral)

 

2. Pf 1st ray is an osseous deformity, Pf relative to other rays with STJ neutral and MTJ locked. 


Estimated to be present in ~ 15% of population. 


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what is the PF 1st ray Aetiology? .Aquired.

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Weak gastrocnemius (planter flaxor) so other muscles will do the job 

Hypertonicity of peroneus longus 

Weak tib ant 

2 ° to uncompensated Ffoot varus

Weak intrinsic muscles> Df of hallu (hullax in the air) = DF of hallux 

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what is the 1st ray? 

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itconsists of the 1st metatarsal & medial cuneiform 

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Q:

where will the 1st ray's motion occur at?

A:

@ 1st cuneonavicular 

@ 1 & 2 intercuneiform 

@ 2nd metatarsal 

@ 1st cuneiform 

@ 1st metatarsocuneiform joint 

Q:

how to determine the amount of arthritis that can develop?

A:

the amount of motion + amount of pronation 

Q:

what are the axis of motion for the 1st ray?

A:

posterior medial and slightly superior to anterior lateral and slightly inferior. 45 degrees from SP & FP

Q:

what are the motion for the 1st ray?

A:

DF with INV & PF & EV 


Df with foot Pro and PF in propulsion to enable normal MPJ extension 

Q:

what motion is enabled when 1st ray PF? 

A:

Hallux is able to achive 70 degrees of DF nessesury for propulsion acting as a ginglymoarthrodial 

Mehr Karteikarten anzeigen
Q:

define ginglymoarthrodial 

A:

i is when a joint having the form of both ginglymus & arthrodia ( hinge and sliding joints at sesamoid)

Q:

what is the ideal metatarsal parbola?

A:

2>1>3>4>5 ( 2>1=3>4>5)

Q:

what are some variations in metatarsal parabola?

A:

2nd >>, 1st << or 1st >>

Q:

what does those variations may lead to? 

A:

sbluxation of 1st MPJ and hallux limitus and rigidus. 

Q:

what are the 1st ray pathologies? 

A:

1. 1 st ray may be Pf or Df - if congenital usually bilateral and normal ROM. Vice versa if acq. (unilateral)

 

2. Pf 1st ray is an osseous deformity, Pf relative to other rays with STJ neutral and MTJ locked. 


Estimated to be present in ~ 15% of population. 


Q:

what is the PF 1st ray Aetiology? .Aquired.

A:

Weak gastrocnemius (planter flaxor) so other muscles will do the job 

Hypertonicity of peroneus longus 

Weak tib ant 

2 ° to uncompensated Ffoot varus

Weak intrinsic muscles> Df of hallu (hullax in the air) = DF of hallux 

Q:

what is the 1st ray? 

A:

itconsists of the 1st metatarsal & medial cuneiform 

the forefoot joints

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