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Orthopaedics exam

Group A1

3\10\2013

20 MCQs

1. origin of bone :+mesoderm

2.the ulnar nerve supplies all of these muscles except:

+the first two lumbricals.

3.one of the following is not true about SCFE:

a.+froglike x-ray is important in diagnosis (not sure)b. bilateral SCFE below the age of 10 is most likely due to

metabolic and endocrine disorders.

c. klein line in an x-ray is helpful in diagnosis.

d.it is a salter harris type fracture.

4. the most common cause of osteomyelitis :

+staph aureus

5.the onion peel appearancein x-ray imaging is seen in:+ewing sarcoma

6. the most specific site for osteosarcoma:

+metaphysis

7. the cause of volkmans contracture:

+ischemia of the muscles in the forearm.

8.the most common fracture associated with compartmentsyndrome :

+tibial

9. the most common neurovascular bundle injury in anterior

shoulder dislocation is:

+axillary nerve (as the doctor said)

b.axiallary artery

c.radial nerve

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10. regarding bones of the foot the most susceptible one to

ischemia:

a.talus b. calcaneus.. (NO ONE KNOWS)

11. trigger finger is:

+tenovaginitis of the flexor tendon

b. part of syncadactly

c. an important feature in carpal tunnel syndrome

12. which of the following secondary (mets) tumours is

osteoblastic:

+prostate

b.breast.c.thyroid

13. the first feature of rheumatoid arithritis:

+synovial damage.

14. the muscle responsible for flexion of the distal

interphalangial joint while the Proximal interphalangeal is

fixed:

+flexor digitorum profundus.B flexor digitorum superficialis.

15.which muscle is affected when there is injury to the long

thoracic nerve:

+serratus anterior

b. teres major

c.subscapularis

16. the most specific test to test for ACL tears in the knee:+lachmann test

17. one of the following pairs is correct regarding nerve

injuries associated with orthopaedic problems:

+knee dislocation---peroneal nerve injury

18. which of the following proteins proved to have a bone

induction effect:

a.osteogenin.b.platelet derived growth factor

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+all of the above (most likely, not sure)

19. tennis elbow is :

+due to damage in the common extensor origin (lateral

epicondyle)

20. the most common secondary injury when dealing with

pelvic fractures is:

+urethra (not sure)

b.bladder