CME SECTION

OR

CME on the Mini-Symposium on "Primary HipReplacement"

Questions

1 When templating for primary hip replacement, which of

the following most accurately reflects how often the

correct implant is size predicted?

A Always

B 95% of the time

C 9 times out of 10

D Three quarters of the time

E About half of the time

2 What ultimately limits the progression of protrusio

acetabuli?

A Abutment of the greater trochanter against the pelvis

B Abutment of the lesser trochanter against the inferior

public ramus

C Femoral neck impingement at the acetabular margin

D Limited space in the lesser pelvis

E Resolution of the underlying cause

3 Which of the following is not used as a landmark for

recording the degree of hip subluxation using Crowe’s

method?

A Centre of femoral head

B Femoral head/neck junction

C Iliac crests

D Ischial tuberosities

E Teardrop

4 Which segment of the acetabular wall is most often

deficient in the dysplastic hip?

A Inferomedial

B Inferolateral

C Posterior

D Superomedial

E Superolateral

5 A large series describing acute total hip arthroplasty for

acetabular fracture reported some early subsidence

followed by what?

A Early loosening of the acetabular component requiring

revision in 10% by a mean 8 years

B Early loosening of the femoral component requiring

revision in 10% by a mean 8 years

C Early loosening of both components with revision

needed in 5% by a mean 8 years

D Stabilization with no revision needed by a mean 8 years

E Stabilization but cup migration resulting in a high

dislocation rate

THOPAEDICS AND TRAUMA 27:5 342

6 What proportion of patients suffering a dislocation after

primaryhip replacementgoon tohave furtherdislocations?

A 5%

B 15%

C 25%

D 33%

E 50%

7 What proportion of patients undergoing one-stage

revision for infected total hip arthroplasty suffer a

recurrence of deep infection?

A 5%

B 15%

C 25%

D 33%

E 50%

8 Which of the following vessels is most commonly

injured to result in significant bleeding complicating

total hip arthroplasty?

A External iliac artery

B Inferior glutaeal artery

C Pudendal artery

D Superficial femoral artery

E Superior glutaeal artery

9 In a study employing patient education videos before

knee replacement, which of the following best

describes the observed effects measured after surgery?

A Improved knowledge and performance of exercises but

no change in anxiety

B Improved knowledge but no change in performance of

exercises or anxiety

C Improved knowledge. Performance of exercises and

anxiety

D Increased anxiety but better knowledge and perfor-

mance of exercises

E No significant effect

10 Which of the following is pathognomic of ALVAL

complicating metal on metal arthroplasty?

A B Cell infiltrate

B Dense perivascular inflammatory infiltrate

C Giant and lymphoid cells together

D T cell infiltrate

E Tissue necrosis with inflammatory infiltrate in the

absence of infection

� 2013 Published by Elsevier Ltd.

CME SECTION

11 Which malignancy has been linked to raised cobalt

levels?

A Breast

B Cervix

C Lung

D Lymphoma

E Thyroid

ORTHOPAEDICS AND TRAUMA 27:5 343

12 Which of the following patients is most suitable for hip

resurfacing to treat osteoarthrosis?

A Female. Age 50. Implant 45 mm diameter

B Female. Age 70. Implant 55 mm diameter

C Male. Age 50. Implant 55 mm diameter

D Male. Age 65. Implant 55 mm diameter

E Male. Age 65. Implant 45 mm diameter

� 2013 Published by Elsevier Ltd.