Arab Orthopaedic Board MCQs - Part 3

Phosphorous deficiency rickets is associated with the intake of which of the following medications:

Which of the following has been associated with myopathy in osteomalascia:

The most probable explanation for patients to have gastric rickets is:

The basic cause of biliary rickets is:

All the following conditions are causes of enteric rickets except:

Type I vitamin D-dependent rickets is related to:

When rickets is associated with Albright’s syndrome (X-linked dominant condition) is due to:

The Fanconi syndrome when it first presents in adults is most liked caused by:

All the following have been associated with Fanconi syndrome, except:

Oncogenic osteomalascia is associated with:

All the following tumors have been associated with osteomalascia except:

FGF23 produced by primary malignant tumors known to be associated with osteomalascia, results from:

Chronic anticonvulsant therapy leading to osteomalascia, is believed to be due to all the following, except:

A 3 year old boy following a minor fall and on plain xrays of the wrist, was noted to have pelkan spurs, Wimburger’s line and a Fraenkel line. Your most likely diagnosis would be:

A significant difference between balloon kyphoplasty and vertebroplasty is that:

Absolute contraindications to both kyphoplasty and vertebroplasty include all except:

The extrapedicular approach in kyphoplasty is most commonly used at the:

A 4ST (hamstring graft is estimated to be equivalent in strength to a normal ACL (in percent):

In which of the following injuries mechanoreceptor function is lost:

Which of the following cancers metastasize least to bone:

Which of the following lesions in bone would benefit most from embolization:

Which of the following cancerous primary sites, is known to be associated with acro- metastases:

Which of the following malignancies can present with the radiologic appearance of an ivory vertebra:

Which of the following conditions is associated with resorption of the tufts of the distal phalanges of the hand:

Osteosarcoma of the sacrum in a 60 year old man is most probably secondary to:

When Ewing Sarcoma presents as a solitary lesion in the spine, it is most commonly located in the:

In which of the spine sections does Ewings sarcoma (When present) have the worse prognosis:

In infants younger than four months old, when clinical suspicion of DDH exists, the best radio-imaging used to assist in the diagnosis, would be:

All the following are considered risk factors for DDH, except:

The incidence of club foot deformity is increased four times in which of the following:

Which of the following radio-imaging techniques is most useful to confirm reduction of DDH while in a hip spica:

Indicate which of the following facets is the largest in the foot and is the major weight- bearing surface of the subtalar joint:

Lateral ligamentous support of the subtalar joint arises from all, except:

On comparing pediatric spines less than 8 years of age, to those in adults, certain differences are noted which include all, except:

The spinal cord ends at what level in newborns:

In distraction injuries of the spine in children, the deforming tension force is commonly translated through which portion of the vertebra:

The accepted explanation why children have a higher incidence of abdominal injuries following thoracolumbar distraction injuries, would be:

One of the following statements, does not stand as an advantage of a percutaneous biopsy:

All the following are contraindications to limb salvage procedures, except:

With the advent of neoadjuvant chemotherapy and advances in radiation therapy techniques, the 5-year survival rate of osteosarcoma has improved to:

The primary stabilizer of the elbow is:

The primary constraint to valgus stress at the elbow joint is:

The secondary stabilizer against valgus stress of the elbow:

The radial head articulates medially with:

The proximal dorsal angulation located nearly 5 cm distal to the tip of the olecranon measures:

The anterior band of the medial collateral ligament inserts on:

The structure that inserts on the crista supinatoris on the lateral proximal ulna at the point where the supinator crest blends with the radial notch would be:

An isolated coronoid tip fracture seen on an otherwise normal radiograph is suggestive of:

The terrible triad injury of the elbow results from a valgus with additional posterolateral force and consists of a combination of:

When a giant cell tumor arises in children, its primary site of location would be in the: