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Ortho and Rheum > Foot > Flashcards

Foot Flashcards

1
Q

What is tarsal coalition?

A

Abnormal connection that develops between the talus and calcaneus at the back of the foot
Can be composed of bone, cartilage or fibrous tissue
Can lead to limited motion and pain

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2
Q

Presentation of tarsal coalition

A

Can present as rigid pronated FLAT foot in the early teens

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3
Q

What can foot pain in children be associated with?

A

Congenital abnormalities such as equinovarus abnormality (club foot) - these structural abnormalities can reflect underlying neurological disease such as cerebral palsy

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4
Q

What is club foot associated with

A

Cerebral palsy

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5
Q

Which joints are most commonly affected in JCA

A

Knee and ankle joints - in all subtypes of JCA

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6
Q

What is metatarsalgia?

A

Pain in the forefoot

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7
Q

What is another name for Morton’s metatarsalgia?

A

Interdigital neuroma

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8
Q

What does mortons neuroma affect?

A

It affects the proximal part of the plantar digital nerve and accompanying plantar digital artery

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9
Q

How does Morton’s neuroma develop?

A

Trauma to the PD nerve - trapped nerve under transverse ligaments (and artery) leads to inflammatory oedema, microscopic changes, fibrosis and lateral degeneration of the nerve - the pain arrives from entrapment of the interdigital nerve

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10
Q

Symptoms of Morton’s neuroma?

A

Gradual onset, sudden attacks of neuralgic pain or paraesthesia during walking
Often in 3rd and 4th toe

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11
Q

Investigation findings in Mortons neuroma

A

May show lesser toe deformities, slight splaying of the forefoot, abnormal pronation and hallux valgus (bunion)

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12
Q

What is a bunion?

A

It is hallux valgus, medial protrusion and inflammation of the 1st MTP joint
May be present in women who wear court shoes

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13
Q

Management of Mortons neuroma

A

Advice about suitable footwear and possibly orthoses to control abnormal pronation
Injections of local anaesthetic and hydracortisone around the nerve or surgical excision (leads to loss of sensation)

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14
Q

What are forefoot stress/march fractures ? where?

A

Fractures associated with increased activity - lesions can affect any of the metatarsal shafts and are often along the line of the surgical neck

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15
Q

Typical history of a patient with a stress fracture in the forefoot?

A

History of change in amount of activity, occupation or foot wear
Or sudden weight gain

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16
Q

Symptoms of forefoot stress fracture?

A

Dull ache along the affected metatarsal shaft
This changes to a sharp ache just behind the metatarsal head
Pain exacerbated by exercise - more acute at “toe off”

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17
Q

Signs in forefoot stress fracture?

A

Tenderness and swelling over dorsal surface of shaft

Pain produced by compression of metatarsal head or traction of the toe

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18
Q

Examination of forefoot stress fracture?

A

Might not show up on x-ray for 2-4 weeks but if need to confirm a diagnosis then bone scan can be done

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19
Q

Treatment of forefoot stress fracture

A

Rest and local protective padding with partial immobilisation

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20
Q

What is Freibergs disease?

A

Avascular necrosis of metatarsal head which commonly affects the first metatarsal

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21
Q

What is acute synovitis in the forefoot

A

Normally caused by acute trauma - leads to inflammation of the synovial membrane and effusion
Can also be caused by systemic disease such as RA or infection

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22
Q

Who is often affected by acute synovitis in the forefoot

A

Young adults

Rare in children

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23
Q

Symptoms of forefoot acute synovitis

A

Sudden onset painful throbbing made worse by movement on the background of a history of trauma
Fusiform swelling may be present and crepitus may be felt

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24
Q

Treatment of forefoot acute synovitis

A

Rest, immobilisation and US treatment may help in trauma is the cause
Anti-inflammatories can help

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25
What causes acute inflammation of the anterior metatarsal soft tissue
Commonly in middle-aged women, where there is increased shear forces eg. from wearing slip on or high-heeled court shoes
26
Symptoms of acute inflammation of the anterior metatarsal soft tissue
Burning of throbbing in forefoot anterior to metatarsal heads - usually develops over weeks and is related to wearing a pair of shoes - relieved by rest
27
Signs of acute inflammation of the anterior metatarsal soft tissue
Tissues are inflamed, warm and congested Direct palpation, rotation and simulation of shear forces exacerbate pain Shoes may have a worn insole and depression under metatarsal heads
28
Details of plantar metatarsal bursitis
Can affect deep or superficial bursae (deep tissues are tight and congested, superficial - signs of acute inflammation) Can be acute (dancers, squash players or skiiers) or chroniic (inflammatory arthritis) Throbbing pain usually - persists at rest Treat with anti-inflammatories, gels and oral drugs - injections may be needed if severe Rest area - padding
29
What is osteochondritis/freibergs infarction
Aseptic necrosis or epiphyseal infarction associated with trauma of 2nd/3rd metatarsal head
30
Who does freibergs infarction affect - presentation
Teenagers, associated with increased sporting activity Limp + dull pani with movement and "toe off" Can lead to arthritis
31
Management of freibergs infarction
Rest and immobilisation at first | May need corrective surgery
32
4 causes of painful heel
Sever's disease (calcaneal apophysitis) Plantar calcaneal bursitis "policemans heel" Chronic inflammation of heel pad Achilles tendon affections
33
Details of sever's disease
Chronic strain of attachment of post.apophysis of calcaneus to main body of bone, possibly form pull of achilles Usually in boys age 8-13 Dull ache behind heel, gradual onset Exacerbated with jumping just before "heel lift" Tenderness Rest and reducing activities
34
Details of plantar calcaneal bursitis
Inflammation of bursa beneath plantar aspect of calcaneal tuberosities Associated with sheering stress Increasing burning aching and throbbing pain on plantar surface of heel Hx of increased activity or weight gain Rest and antiinflammatoires Stretching exercises
35
What causes chronic inflammation of heel pad?
Usually from trauma or heavy heel strike | Sometimes in elderly as fat pads atrophy
36
Features of inflammation of heel pad
Warm, dull throbbing pain over weight-bearing area of heel Develops over months Worse when first rising Will normally improve with time, soft heel cuchions can help
37
Where does OA most commonly affect the foot?
First MTP joint and tarsus joints - first MTP is one of the most commonly affected joints in OA
38
What contributes to degenerative joint changes with OA x4
Compensatory foot pronation etc Trauma Recurrent gout Inappropriate footwear
39
Where does RA affect in the foot?
``` MTP joints (typically where RA starts) In early disease hind foot especially subtalar joint can be painful ```
40
Foot pain in seronegative spondyloarthritides
Achilles tendon especially affected Sausage toe can be common Can have psoriatic skin and nail changes in psoriatic arthritis
41
What are callosities? - what other similar things are there
Pressure lesions which can develop from joint deformity with arthritides Corns or ulceration can also occur with joint deformity
42
Features of club foot x4
Inversion Adduction of forefoot related to hindfoot Varus hindfoot Equinus (plantarflexion) deformity Foot cannot be passively everted and dorsiflexed through the normal range
43
Treatment of club foot?
Ponseti method Foot is manipulated and placed in long leg plaster cast on repeated occasions Correction must be gradual
44
What is pes planus
Flat feet - medial longitudinal arch collapses
45
When is flat feet normal?
In a child learning to walk - and then the medial arch develops over the next few years
46
What is flat feet in adults associated with?
Dysfunction of the posterior tibialis tendon
47
Consequences of flat feet
Most it is asymptomatic and does not need intervention if the arch restores itself when standing on tiptoes May get pain if condition progresses but consequences with surgery therefore not recommended lightly
48
What is pes cavus?
Accentuated longitudinal arch which does not flatten on weight-bearing May be idiopathic or associated with underlying neurological condition
49
What is hammer toes?
Extended at MTP joint, hyperflexed at PIP joint and extended at DIP joint - typically as a result of footwear that doesnt fit properly - 2nd toe most commonly affected
50
What are claw toes
Extended at MTP joint but flexed at both PIP and DIP joints - often as a result of nerve damage aka alcoholism or DM
51
Difference between hammer and claw toe
Hammer flattens out at DIP joint but claw toe remains curved
52
Treatment of hammer and claw toe
Either metatarsal shortening or PIP joint arthrodesis (fixing)
53
What are mallet toes?
Flexion deformity of DIP joint in isolation
54
Treatment of mallet toe
Surgical flexor tenotomy or DIP joint arthrodesis
55
Which digit does ingrowing toenail commonly affect
Big toe
56
Why do you get ingrowing toenail
Usually due to incorrect cutting and then too tight shoes
57
What is bunion
Hallux valgus
58
What happens to bones in bunion?
There are two sesamoid bones in the tendon of flexor hallus longus - these are needed for stability - when metatarsal moves medially, the sesamoid bones fall down into the first web space
59
Functional problems with bunion
Normally toe - first mtp joint - takes a lot of weight with toe off and therefore with hallus valgus - it can no longer take the weight and this causes stress damage -leads to arthritic changes or stress fractures
60
When do you get pain in bunion
Due to very advanced deformity and development of painful arthritis and stress fractures
61
Recovery after bunion surgery
Back on feet 6-8 weeks after
62
What is cheilectomy and when is it used?
Removal of bony Spurs - eg in OA on MTP
63
What is Achilles' tendon tendonitis?
Not inflammatory!!! It's degenerative changes of the tendon - fibroblasts deposits random collagen - leads to thickening and disorganisation
64
What is plantar fasciitis
Degenerative tendinosis of the tendon - treated by physiotherapy and stretching (95% of treatment)
65
Alternative treatment of achilles tendonosis
Shockwave therapy - exceedingly painful - but effectively damages the tendon and induces reparative changes and makes it better
66
What do you need to think of if high arch foot and varus hind foot
Neurological - eg.spina bifida, Charcot Marie tooth etc - need to go for whole spine MRI Can present at any age

Ortho and Rheum (13 decks)

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