ROUNDS QUIZ:

337. Only one of the following is a true tumour.

A. Bone cyst
B. Fibrous dysplasia
C. Osteochondroma
D. Enchondrome
E. Nonosteogenic fibroma

338. The fundamental defect in osteogenesis imperfecta is though to be:

A. A failure to produce mature collagen fibres
B. A defect in the cartilage anlage
C. A defect in chondromblastic activity
D. A calcium deficiency
E. An inability to heal bone fractures and injuries

339. A Bannett’s fracture is difficult to maintain in a reduced position mainly because of the pull of the:

A. Flexor pollicus longus
B. Abductor pollicus longus
C. Extensor pollicus brevis
D. Flexor pollicus brevis
E. Opponens pollicus

340. Adduction of the thumb is lost when paralysis of which of the following nerves occurs?

A. Median
B. First digital
C. Ulnar
D. Radial

341. The patella is most often found at an abnormally high level in association with:

A. Congenital discoid meniscus
B. Osgood-Schlatter’s disease
C. Nail-patella syndrome
D. Blount’s disease
E. Recurrent dislocating patellae

342. Which traumatic events can initiate a compartment syndrome?

A. Crush injury
B. Snake bite
C. Supracondylar humeral fracture
D. Midshft spiral-type fracture of the tibia
E. All of the above

Rounds quiz answers
337. D; 338. A; 339. B; 340. C; 341. E; 342. E.