Midterm Flashcards
What is the definition of a differential diagnosis list?
ordered list of PLAUSIBLE diagnoses
How is the DDx list structured?
- most plausible to rule IN 2. 2-3 next most plausible 3. 1-2 Dx to rule OUT
What is the purpose of the DDx list?
To guide physical exam - select procedures to rule in/out Dxes
What are 5 factors to consider that influence the DDx?
- epidemiology 2. location 3. etiology 4. quality 5. diagnostic uncertainty
What are the 4 general causes of overpronation syndrome?
- too much, too fast, wrong time 2. osseous anomalies 3. functional causes 4. neurological
Which diagnoses causes the heel to be too supinated/inverted during heel strike? (3)
Rearfoot varum, tibia varum, genu varum
Which side of the heel will have exaggerated wear in a pt with rearfoot varum?
lateral side
Which muscles will show fatigue or weakness in a pt with rearfoot varum/
gastroc, tib ant., tib post.
Tx for rearfoot varum - adjustment?
subtalar and midtarsal joints
Tx for rearfoot varum - orthotic?
medial rearfoot post
Which diagnosis requires more pronation to engage the 1st ray in take-off?
Forefoot varum
Which muscle will be tight in a pt with forefoot varum/
tib ant.
Which muscle will be weak in a pt with forefoot varum?
peroneus longus
Tx for forefoot varum - adjustment?
midtarsal, intermetatarsal, 1st MTP joints
Tx for forefoot varum - orthotic?
Medial forefoot post
Will a pt with tibia varum over- or underpronate?
Either - depends on foot rigidity. Rigid foot = underpronator
When would pronation control shoes be appropriate Tx for tibia varum?
If pt is overpronating
Tx for tibia varum - orthotic?
medial rearfoot post
Which pt are at an increased risk for inversion sprain? (2x more likely)
tibia varum
Which msls are weak in a pt with genu varum?
hip ext. rotators
Which msls are tight in a pt with genu varum?
medial hamstrings and gracilis
Tx for genu varum - adjustment?
back, hip, knee, foot
What would cause underpronation in a pt with genu varum?
rigid supinated foot
Which diagnoses cause the pt to footstrike on the medial side of the heel? (2)
genu valgum, rearfoot valgum
Which side of the heel will have exaggerated wear in a pt with rearfoot or genu valgum?
medial heel wear
Tx for genu/rearfoot valgum - adjustment?
back, hip, knee, foot
What is the relationship between flexibility and support in a pt with genu/rearfoot valgum?
increased flexibility requires increased support
Which msls will be tight in a pt with genu/rearfoot valgum?
hamstrings, hip and knee rotators
Which msls will be weak in a pt with genu/rearfoot valgum?
quads, tib ant., posterior msls
Tx for genu/rearfoot valgum - orthotic?
medial post
Which 3 first ray abnormalities cause late pronation?
- hallux valgus 2. morton’s foot 3. dorsiflexed 1st metatarsal
What is defined as lateral deviation of the 1st toe?
hallux valgus
what is defined as an elongated 2nd metatarsal (relative to others)?
Morton’s foot
What are 5 general Tx approaches for overpronation syndrome?
- adjusting/mobilization 2. foot exercises 3. taping 4. pronation control shoes 5. orthotics
How should you determine what joint/direction to adjust in a pt with overpronation syndrome?
JOINT PLAYS - don’t assume medial side needs to be moved superiorly
What are 4 examples of foot exercises for pts with overpronation syndrome?
- short/small foot 2. toe extensions 3. heel walk/toe walk 4. tubing
What are short/small foot exercises?
static/standing engagement of intrinsic msls
What are some characteristics of pronation control shoes?
stiff shoe, rigid heel counter, straight last, board last
What are the two general types of orthotics?
- accommodative 2. functional
Which type of orthotic is most commonly used?
functional - cheaper
What condition is defined as “forefoot pain typically localized to the distal intermetatarsal region”?
metatarsalgia
Is metatarsalgia always localized?
No - can be generalized foot pain
Metatarsalgia - epidemiology? (6)
- elderly 2. obesity 3. pregnancy 4. footwear (no evidence) 5. recreation/running surface 6. diabetes (weak connection)
Metatarsalgia - etiology? (2)
- repetitive overuse 2. gradual onset of initial symptoms
Why does repetitive overuse lead to metatarsalgia?
leads to ligamentous laxity and overpronation
What is the quality of pain in metatarsalgia?
dull, achy.
Which arch will a pt with metatarsalgia have pain in?
transverse arch
What condition is often described as “a pebble in my shoe”?
specific metatarsalgia - may have callous formation
T/F: metatarsalgia pain is constant in the acute phase
False - waxes and wanes b/t latent and acute exacerbations
What determines the severity of metatarsalgia?
how many metatarsals are affected and the phase of injury
What is a pertinent negative for metatarsalgia?
absense of neuro sx
What are 3 pertinent positives for metatarsalgia?
- assoc w/ footwear 2. timing w/in gait cycle 3. callous formation