Arab Orthopaedic Board MCQs - Part 14

The most acceptable theory to explain the cause of congenital pseudoarthrosis of the clavicle, would be:

Congenital absence of the clavicle bilaterally is associated with which of the following conditions?

A four month’s old infant, is noted to have swelling in the region of the clavicle with fever and an elevated sedimentation rate of 60mm/1st hour. X-rays reveal, increased sclerosis of both clavicles and scapulae. Your most likely diagnosis would be:

Bilateral congenital pseudoarthrosis of the clavicle has been associated with which of the following conditions:

Which of the following carpal bones is the key to stability (of all the carpal bones):

Dissociative carpal instability results most from division of which of the following ligaments:

Injury to which of the inter-carpal ligaments leads to a non-dissociative wrist instability pattern

Which of the following conditions, has been associated with phases of osteolysis followed by phases of osteoblastic bone formation, leading to a mosaic bone appearance?

A condition which is most associated with a woven bone quality would be:

Which of the following sites is the third in frequency following metastasis from a primary carcinoma:

Which of the following is least to have metastasis from a carcinoma at a different site:

For a secondary tumor to infiltrate it usually secretes which of the following:

Which of the following carpal bones is not located in the distal row of the wrist?

What percent of wrist motion occurs at the mid-carpal level?

Which of the following structures does not pass through the carpal tunnel?

At the wrist joint level, which of the following canals, does the ulnar nerve and artery traverse?

Which of the following tendons passes through the third extensor compartment of the wrist?

All the following muscles are innervated by the median nerve distal to the carpal tunnel, Except:

The origin of the the lumbrical muscles is from:

Which of the following structures forms the floor of the anatomical snuff box?

Which of the following tests evaluates both the radial and ulnar artery distal to the wrist?

“No mans land” is located between:

Rupture of the central slip of the extensor expansion of the ulnar four digits results in a:

The most common site for a wrist ganglia to occur, would be at:

Which of the following structures is most important in preventing bow stringing of the flexor tendons of the fingers?

In Talar neck fracture dislocations involving also the talo-navicular joint, the incidence of osteonecrosis of the body of the talus would be:

The cell that produces RANKL and is involved in bone metabolism, would be:

Which of the following, is known to stimulate P 450 action in the liver and thus leads to a deficiency in vitamin D?

Calcitonin when given subcutaneously in a patient with a vertebral fracture, is known to lead to a:

A rare condition known to have absence of the ruffled border of the osteoclast and a significant drop in the number of Howships lacunae, would be:

Which of the following conditions is most likely to have a mosaic appearance, pathologic wise?

The osteoblast is known to produce:

Which of the following is least likely to be associated with Rickets?

With which of the following conditions Looser zones has been associated:

Which of the following is least associated with a parathyroid adenoma?

In Pediatric Osteomyelitis, which of the following joints does not include the metaphysis and is not at risk of having a septic arthritic process, by a rupture of pus via the subperiosteal route?

A line drawn tangential to the opisthion and also passes tangent to the upper and posterior margin of the odontoid, is known as a

An elderly man fell and sustained as hyperextended injury to his neck. He was noted to have significant weakness in his upper extremities when compared to the lower. He most probably has a:

Both neurogenic and hemorrhagic shock have in common hypotension, what distinguishes these two conditions:

Drug addicts using the intravenous route, are predisposed to which of the following organisms, should they have osteomyelitis:

The most frequent site to be involved in fractures of the atlas, would be:

At which level of the cervical spine in a child one often notices a pseudo subluaxtion of the facets?

In Scoliosis, An apical vertebra would be:

A child who develops a painful scoliotic curve at the wrong time and place, would be most likely due to an:

In infantile scoliosis, the most likely predictable finding that would indicate most likely that a curve is going to progress, would be:

Should you be giving a lecture on “Osteochondritis Dessicans”, which of the following portion of the knee joint is most commonly the site of this lesion?

Which of the following deformities is last to be corrected in a club foot deformity?

The best radiologic marker that would indicate subluxation of the hip in an adult, would be:

Which of the following radiologic findings would favor most a poor result, should surgery be performed on a dysplastic hip?

Avascular necrosis of the tarsal navicular is known as: