Foot/ankle Flashcards
What are the two compound joint lines of the foot?
- Lisfranc line
- Transverse tarsal or Chopart line
What joints comprise the chopart line?
- Talonavicular joint
- Calcaneocuboid joint
What muscles lie in the deep layer of the plantar intrinsic ?
- Abductor Hallucis
- FDB
- Abductor Digiti Minimi
How much 1st MTP extension is required for ray to day ?
60 degrees
How much 1st MTP extension is required for en pointe dancing ?
90 degrees
PF requirements ?
150 degrees
How much DF ROM IS required for day to day
40 degrees
Does the foot pronate or supinate during propulsion?
Supinate
Does the foot pronate or supinate during stance phase/shock absorption?
Pronate
Where does to scrunching place a lot more pressure and what sort injuries might be associated with it?
MT heads:
Plantar plate injuries
MTP pain
Neuroma
In gait analysis, what is one key thing you’re looking for in heel strike?
Does the foot evert
In gait analysis, what is one key thing you’re looking for in mid stance?
Does it pronate
In gait analysis, what is one key thing you’re looking for in late stance?
Is the rigid lever being created
In gait analysis, what are two key things you’re looking for in push off?
1st toe ext
Foot supination
Twist test: when turning to the right what should happen at the right and left foot?
Left foot - pronation
Right foot - supination
What paper gives overview to the function of the foot arch, windlass mechanism and flat vs rigid feet?
Behling, 2023
Whole foot pronation consists of what three movements ?
- Rear foot eversion
- Forefoot abduction
- Forefoot dorsiflexion
Nielsen, 2013 paper gives support to what?
That foot pronation is not consistently linked to injuries
What nerve may be injured with a lateral Mal. Fracture?
Superficial peroneal nerve
True or false: the PIM contribute greatly to resist long arch deformation during weight acceptance ?
False
When do the PIM become important in the gait cycle and how do they contribute?
What paper supports this notion
They are important in stiffening the forefoot during late stance just prior to push off
As found by Farris 2019
Inhibition of the PIM does what to the foot during
Decline in power output during push-off
What two PIM are most important for the active contribution to the LA
FDB
AH
What role do the PIM play in relation to the MTP joint and gait
They actively stiffen to 1st MTP in late stance - this assists in propulsive power during push off