Arab Orthopaedic Board MCQs - Part 31

The Figure below shows the radiograph of a 14-year-old boy who has been treated in the past for Perthes’ disease with an abduction brace. He now has hip pain that limits his activity, and nonsteroidal anti-inflammatory drugs have failed to provide relief. What is the most appropriate treatment?

A newborn girl is referred for evaluation of suspected hip instability. What information from her history would place her in the highest risk category?

A 4-year-old child was born with bilateral congenital radial clubhands. Which of the following associated conditions is a contraindication to centralization of the hands on the ulna?

A 7-year-old boy with spastic diplegia is a limited community ambulator. He has a moderately severe crouched gait. The parents request a treatment that will result in a permanent decrease in lower extremity muscle tone. This is best accomplished with:

Where is the most common site for tuberculosis (TB) spondylitis in children?

What is the most important sign of impending modulation with rapid progression of a spinal deformity in neurofibromatosis?

A 6-year-old child has a fixed flexion deformity of the interphalangeal (IP) joint of the right thumb. The thumb is morphologically normal, with a nontender palpable nodule at the base of the metacarpophalangeal joint. Clinical photographs are shown in the Figures below. Based on these findings, what is the treatment of choice?

A 3-year-old boy had been treated with serial casting for a right congenital idiopathic clubfoot deformity. The parents are concerned because the child now walks on the lateral border of the right foot. Examination shows that the foot passively achieves a plantigrade position with neutral heel valgus and ankle dorsiflexion to 15 degrees. The forefoot inverts during active ankle dorsiflexion. Mild residual metatarsus adductus is present. Management should now consist of:

What is the preferred treatment of a symptomatic curly toe deformity in a 6-year-old child?

What zone of the physis is widened in rickets?

Individuals presenting with a complete slip of one vertebra on the other are known to have a:

Which of the following does not apply to the Wiltse’ classification of spondylolisthesis:

Which of the following statements is least likely to provide us with an explanation, why the incidence of spondylolisthesis is less likely to occur at the lumbosacral junction, with respect to the L4-5 level:

A slip due to degenerative spondylolisthesis, never exceeds:

A mechanism or force resulting in an isthmic spondylolisthesis is most commonly in:

Fractures through the proximal tibial apophysis in children (age 10 years) are most commonly a:

Injury of the popliteal artery or its branches, following high energy fractures about the knee, occurs most commonly in which of the following locations:

The mechanism of injury or force that would likely result in a proximal apophyseal injury (tibial tuberosity) in a 10 year old child would be:

Traumatic dislocations of the patella have been associated with which of the following fractures of the patella:

Plain radiography in a 13 year old girl diagnosed to have a triplane fracture of the ankle, would reveal:

A 50 year old woman presents to your clinic having a bilateral mass (8X10 cms in diameter) located each beneath the inferior angle of both scapulae. Each of the masses becomes more apparent on internally rotating and adducting the corresponding arm, and by doing so, she has pain. Your most likely diagnosis would be:

Following closed reduction and Hip spica application in a one year old girl, with bilateral dysplastic hips, the best imaging technique that would confirm the reduction would be:

Which of the following conditions is least associated with the incidence of DDH in new borns:

Which of the following innominate osteotomies listed below, follows the same principle as the Pemberton osteotomy, with less disturbances in growth of the tri-radiate cartilage:

While performing an open reduction in a child with DDH, on exposing the acetabulum you note that the limbus is inverted and in the way of your reduction. Your next step would be, to:

In a child aged 3 years with a unilateral high riding DDH, your best approach in management would be:

Which of the following is a dynamic hareness used for reduction of a DDH, before the age of eight months:

In a newborn with a moderate club foot deformity, which of the following deformities should be corrected last:

A child presents to your clinic at the age of four months with the diagnosis of unilateral DDH. At this stage which of the following tests on examination is likely be present:

Black stains have been noted on the articular surface of the alumina shell in alumina- alumina THA. These have been found to be due to:

On comparing patients while performing a TKA where the patella was everted VS when not everted, the former was associated with a:

A middle aged patient presenting with a well contained hemorrhage, surrounded by a pseudocapsule with no ecchymosis, most likely has a:

Total shoulder arthroplasty is an especially difficult procedure, since optimal function after surgery requires a great deal of skill in the reconstruction and rehabilitation. Good and durable results would least depend on:

The Tug test is used to locate which of the following structures during shoulder arthroplasty:

The shoulder offset is measured from:

The arc of active function of a normal knee ranges between:

Quadriceps muscle relaxation during the stance phase “the arc of terminal extension,” occurs at:

During weight bearing on a flexed knee (15°), the quadriceps muscle force required to stabilize the knee is:

All the following are risk factors for limitation of motion of knee during ligamentoplasties, except:

A test performed by having the patient clench his or her thumb in a fist, followed by brisk deviation of the wrist ulnarly, elicits pain over the first dorsal compartment of the wrist, is known as the:

A number of factors have been implicated in the process in the development of osteonecrosis of the hip except: f- alcohol use g- high-dose corticosteroid administration h- coagulation abnormalities i- over-weight j- impaired mesenchymal cellular differentiation

Alcohol and corticosteroids most likely induce osteonecrosis of the hip by:

What should the “Kerboul angle” be in a patient with osteonecrosis of the hip, to favor a good prognosis:

The most accurate imaging for detection of acute discitis in a child, would be:

A 6 year old boy presents with acute pain in the cervical spine region. He was noted to have stiffness, and local tenderness in the cervical region and an elevated temperature (38.0 deg centigrade). Lab studies revealed, an increased sedimentation rate (35mm/1hr), and a WBC of 10000/ HPF, your most likely diagnosis would be:

All the following favor the diagnosis of scheuermanns disease, except:

Scheuermann’s disease of the thoracolumbar region has been associated has been associated mostly with which of the following conditions:

Which of the following benign tumors is most likely to lead to a gradual replacement of the vertebral body and gradual weakening and could precipitate a sudden collapse of the vertebral body and bleeding, initiating the onset of pain, in a child:

In children, the most common skeletal metastases to the spine, would be:

The most common soft tissue tumor to metastasize to the spine, in a child would be: f- Synovial sarcoma g- Epithelioid sarcoma h- Rhabdomyosarcoma i- Liposarcoma j- Angiosarcoma