Orthopaedics: Lower Limb

Question 1

Hip pathology tend to produce pain in the groin and knee because…

Answer 1

both are served by the obturator nerve

Question 2

Which movement is first lost in hip pathology?

Answer 2

internal rotation

Question 3

Abductor weakness is weakness in which muscles?

Answer 3

gluteus medius and minimus

Question 4

Gluteus medius and minimus are suppled by…

Answer 4

superior gluteal nerve

Question 5

When may the limb become shorted in hip pathology?

Answer 5

SUFE, AVN, fracture, severe OA

Question 6

DDx of groin pain

Answer 6

Hernia, high lumbar disc prolapse (L1/2), adductor tendonitis, pubic symphysis dysfunction

Question 7

What conservative methods should be trialled first before THR?

Answer 7

analgesia, physiotherapy, walking stick, weight reduction and activity alteration

Question 8

Early complications of THA/THR

Answer 8

infection, dislocation, nerve injury, leg length discrepancy

Question 9

What are secondary causes of AVN of the hip?

Answer 9

alcohol excess, steroids, hyperlipidaemia, thrombophilia

Question 10

The hanging rope sign on an x-ray is found in which condition?

Answer 10

AVN

Question 11

When AVN causes femoral neck collapse what is the only treatment option?

Answer 11

THR

Question 12

If AVN of the hip is found before total collapse what can be done?

Answer 12

drill holes in the femoral head/neck to prevent collapse