Idiopathic Transient Osteonecrosis of the Hip(ITOH) Flashcards

1
Q

describe the pathophysiology of idiopathic transient osteonecrosis of the Hip(ITOH)

A

local hyperaemia and impaired venous return with marrow oedema and increased intramedullary pressure

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2
Q

what clinical features are seen in the presentation of ITOH

A

progressive groin pain over several weeks, difficulty weight bearing, usually unilateral

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3
Q

what groups of people is ITOH usually seen in

A

males > females, middle age men, pregnant women in their third trimester

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4
Q

what investigations are used for ITOH

A

elevated ESR, radiographs, MRI(gold standard), bone scan

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5
Q

what is seen on the radiograph of an ITOH patient

A

osteopenia of the head and neck, thinning of cortices, preserved joint space

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6
Q

what is involved in the management of ITOH

A

self-limiting condition resolves itself in 6-9months, analgesia, protected weight bearing to avoid stress fracture

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7
Q

describe what tochanteric bursitis is

A

when repetitive trauma caused by iliotibial band tracking over trochanteric bursa, causes inflammation of bursa

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8
Q

what groups of people is trochanteric bursitis usually seen in

A

females, young runners, older patients

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9
Q

that clinical features are seen in presentation of trochanteric bursitis

A

pain on lateral aspect of hip, pain on palpation of greater trochanter

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10
Q

how is diagnosis of trochanteric bursitis made

A

clinically, MRI can be done but not usually needed

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11
Q

what is involved in the management of trochanteric bursitis

A

analgesia, NSAIDs, physio, steroid injection

no proven surgery benefit

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