Hip

Question 1

Where does hip pain commonly radiate to?

Answer 1

Groin, buttocks and Knee

Question 2

Why does hip pain often radiate to the knee?

Answer 2

Both are innovated by the obturator nerve.

Question 3

Early local complications of a THR

Answer 3

infection
dislocation,
nerve injury
leg length discrepancies

Question 4

Early general complications of a THR

Answer 4

MI, UTI, Blood loss, hypovolaemia, DVT , PE

Question 5

Implications of a THR on younger patients

Answer 5

Put more strain on the replacement and will require a revision.

Question 6

List some risk factors for secondary avascular necrosis

Answer 6

alcohol abuse
steriods
hyperlipidaemia
thrombophilia

Question 7

Early signs of avascular necrosis on X-ray

Answer 7

Patchy sclerosis on weight bearing areas.

Lytic zone underneath sclerotic area formed of granulation tissue.

Question 8

What is the risk of AVN?

Answer 8

The femoral head can collapse which requires a total hip replacement.

Question 9

How can collapse of the femoral head be preventedor delayed?

Answer 9

Holes can be drilled into abnormal area to relive pressure and promote healing.

Question 10

Gluteal cuff syndrome

Answer 10

Tendonitis and degeneration over the greater trochanter where most abductor muscles insert can result in tendon tears.

Question 11

Gluteal cuff syndrome presentation

Answer 11

Pain and tenderness over the great trochanter with pain on resisted abduction