Pedal coalitions Flashcards

1
Q

What does the Harris & Beath axial projection show?

A

Lateral projection that shows posterior and middle facet

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2
Q

What does the Ischerwood identifiy? What projection is this?

A

lateral oblique projection that shows the anterior facet of STJ; nwb!!;

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3
Q

Synchondrosis

A

cartilaginous coalition

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4
Q

synostosis

A

osseous coalition

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5
Q

syndesmosis

A

fibrous coalition

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6
Q

What is the most common pedal coalition?

A

fusion of middle/distal phalanx of 5th digit

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7
Q

What is the most common tarsal coalition

A

talo-calcaneal coalition

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8
Q

what is the least common tarsal coalition

A

talo-navicular coalition

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9
Q

What age does that talocalcaneal manifest

A

12-16 yo

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10
Q

what ages does the talonavicular manifest

A

3-5 yo

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11
Q

what ages does the calcanealnavicular manifest?

A

8-12 yo

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12
Q

what are the signs and symptoms of tarsal coalitions

A
stiffness/decreased DOM
pain
pronation
cavus deformity
rearfoot valgus
anterior/posterior tibial spasm
Peroneal spasm-lateral calf pain
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13
Q

Incidence of tarsal coalitions

A

More common in males(sports, occupation)

  • BILATERAL IN 50% of patients
  • race doesn’t matter
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14
Q

Most common STJ(talo-calcaneal) coalition

A

middle facet

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15
Q

signs and symptoms of Talonavicular coalition

A

putter sign

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16
Q

Pt comes in with an Ant-eater sign what do they have?

A

Calcaneonavicular coalition

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17
Q

What projection is best for identifying a talonavicular coalition?

A

Anteriorposterior; medial oblique

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18
Q

What projection is best for identifying a calcaneonavicular coalition?

A

Lateral oblique; lateral

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19
Q

Broden identifies what? what view is it?

A

a medial oblique film that shows posterior STJ

20
Q

Halo sign

A

altered calcaneal trabecular patten secondary to the altered compression forces from the talus

21
Q

who discovered the radiograph

A

William Rankin

22
Q

True coalition

A

intra-articular fusion

23
Q

extra articular fusion of two bones

A

Bar/bridge coalition

24
Q

coalition

A

The union of things separate into a single body

25
Q

Complete coalition

A

osseous union and limits all motion

-no pain

26
Q

incomplete coalition

A

union of fibrous or cartilaginous tissue

-pain

27
Q

osseous projection from one or more bones which

limits motion but does not produce a union of parts

A

Rudimentary coalition

28
Q

How do Apert’s syndrome and Nievergelt-Pearlman Syndrome differ from each other

A
Apert’s Syndrome
	•	Massive targsal coalition
	•	Craniosynostosis
	•	Midfacial hypoplasia
	•	Broad and distal phalanx of thumb and hallux
Nievergelt-Pearlman Syndrome
	•	Synphalangism
	•	Carpal fusion
	•	Atypical clubfoot with massive tarsal fusions
	•	Congenital dislocation of radial heafd
	•	Conduction deafness
	•	Ball and socket ankle joints
29
Q

metatarsal cuneiform is best seen by what projection?

A

oblique

30
Q

Calcaneocuboid is best seen by what projection

A

lateral oblique

31
Q

What are the standard degrees for Harris and Beath?

A

30-35-40-45

lateral projection

32
Q

Isolated fusions usually occur between bones of ? those associated with other abnormalities occur across

A

the same row (distal to proximal),

rows (medial to lateral)

33
Q

Phocomelia

A

defective developmet of arms or legs; feet or hands are attached close to the body (flippers)

34
Q

Hemimelia

A

underdevelopment of an extremity or part

35
Q

Synphalangism

A

webbing of toes

-congenital fusion of proximal or distal interphalangeal jionts

36
Q

Best projection to see Talocalcaneal(middle & posterior facet)

A

Harris and Beath

37
Q

Best projection to see Talocalcaneal (Anterior facet)

A

lateral oblique, isherwood(oblique lateral dosoplantar)

38
Q

Best projection to see Talocalonavicular

A

Anterior Posterior

Medial oblique

39
Q

Best projection to see Calcanonavicular

A

Lateral oblique

Lateral

40
Q

Signs and symptoms of Talocalcaneal

A

Halo sign

Talar breaking

41
Q

Signs and symptoms of Talonavicular

A

Putter

42
Q

Signs and symptoms of Calcanonavicular

A

Ant-eater

43
Q

what is talar breaking?

A

2nd stress on talonavicular ligament, 2 deg impingement of the navicular on the head of the talus in dorsiflexion

44
Q

when setting up Harris & beath what do u have to remember?

A

THe posterior and middle facet should be parallel.

45
Q

Radiographic features of subtalar joint(talocalcaneal jt) coalition

A
Talar breaking
Narowing of posterior talocalcanelal joint space
Round of lateral talar process
Middle STJ not visible
Halo effect