Arab Orthopaedic Board MCQs - Part 28

Calcitonin hormone produces which of the following effects:

All of the following are associated with a significantly increased risk of deep infection in patients with an orthopaedic oncological condition, except:

Extracorporeal shock wave therapy used to treat chronic lateral epicondylitis resulted in significant improvement in all of the following outcome end points except:

A review of 121 ankle fractures treated with open reduction and internal fixation revealed that 21% of the patients were symptomatic as a result of a surgical injury to which nerve?

Hip arthroscopy can be performed with the patient in either the supine or the lateral decubitus position. An advantage of the lateral position is that:

In patients with metal-on-metal bearing hip prostheses:

Following the diagnosis of deep periprosthetic infection in a patient who was treated for an orthopaedic oncological condition, which treatment yields the best functional outcome and probability of eradicating the infection?

A diagnosis of pigmented villonodular synovitis of the hip can be made with magnetic resonance imaging. Which of the following findings is least consistent with this diagnosis?

Which of the following factors decreases the likelihood of success of bracing for an adolescent with idiopathic scoliosis?

Acetabular chondral injuries are graded according to severity, and they influence surgical outcome. These lesions most often:

Eradication of bacteria is most difficult in which region of the foot?

At a minimum of ten years following unicompartmental knee arthroplasty, the most frequent cause of failure was found to be:

After treatment of a distal tibial metaphyseal fracture with an intramedullary nail, which of the following is most predictive of a poorer outcome as determined by the Musculoskeletal Function Assessment Outcomes Instrument?

Which of the following is the best combination of tests for diagnosing a full-thickness rotator cuff tear?

In a study of patients with adolescent idiopathic scoliosis, which of the following was found to be associated with the greatest adverse effect on pulmonary function?

Metal-on-metal articulation has been used as a bearing surface in total hip arthroplasty. Which of the following statements is correct?

When performing total knee arthroplasty, the orthopaedic surgeon must decide whether or not to resurface the patella. Which of the following statements is most consistent with the results found in a recent meta-analysis?

Which of the following is the most important factor in predicting the future extent of pelvic osteolysis adjacent to a cementless acetabular cup?

A seventy-four-year-old woman who lives independently sustained a displaced femoral neck fracture after a simple fall at the golf course. She has mild hypertension but is otherwise healthy. If you perform internal fixation rather than a total hip replacement, which of the following outcome measures would be most likely?

In a study comparing treatment with external fixation with treatment with an elastic stable intramedullary nail in children who sustained a tibial fracture, the children who had the latter procedure were found to have:

Which of the following is the most important factor in the evaluation of peroneal tendon pathology with diagnostic ultrasound?

Following triple arthrodesis, additional procedures are sometimes needed to fully correct acquired adult flatfoot deformity. Which of the following adjunctive procedures would help correct residual forefoot varus?

Which of the following statements regarding platelet-derived growth factor is most true?

Which nerve is at greatest risk of injury when an anterolateral portal is being established for arthroscopic surgery of the elbow?

Bisphosphonate therapy has been shown to be beneficial in the management of all of the following skeletal conditions except:

With regard to the development and prognosis of spondylolisthesis, the term “pelvic incidence” is defined as:

A seventy-year-old patient who is generally healthy is scheduled to have a total hip replacement next week. The patient and his family want to know what to expect in terms of short-term and longer-term mortality. You should tell them that, compared with patients of the same age who do not have hip replacement, patients who have hip replacement have:

The anticoagulant effect of the synthetic pentasaccharide fondaparinux occurs by which of the following mechanisms?

A group of surgeons is asked to classify a group of thoracolumbar fractures with the Denis system and the AO (Magerl) scheme to test the schemes’ interobserver reliability. Three months later, they are given the same radiographs in a different order to test intraobserver repeatability. The expected results are:

Which of the following is the least common type of peroneal tendon tear?

The etiology of fibrous dysplasia has been linked to:

Which of the following statements regarding the indications for rotator cuff surgery is true?

As disc degeneration proceeds in the cervical spine, hypermobility of the segment can result in instability or degenerative arthritic changes or both. Hypertrophic changes are predominantly in the cervical spine at:

Hypertrophic spurring in the anterior aspect of the cervical spine can result in which of the following conditions:

Which of the following substances is not involved in the biochemistry of disc degeneration:

When a cervical disc is punctured anteriorly for the purpose of discography, pain is noted in the:

Rupture of the C4-5 disc with compression of the C5 nerve root should result in weakness of the:

Rupture of the C5-6 disc with compression of the C6 root would result in weakness of:

Rupture of the C5-6 disc with compression of the C6 root would result in:

Rupture o C7-T1 disc with compression of the C8 nerve root results in no reflex changes but leads to weakness in which of the following muscles:

The index finger is the predominant digit with sensory change, with evidence of hypalgesia in compression of which of the following cervical nerves:

On distraction of the cervical spine in the neutral position, would relieve root compression pain, but also can increase pain in other areas as is caused by:

A Hoffman’s sign when present is typical of a:

An inverted radial nerve reflex when present, is typical of which of the following area of compression:

In patients (age 35 Years) with persistent neck pain without localized neurological findings, what additional test besides MRI, CT & Myelogrphy (all being normal) could be used to help in localizing the cause:

Which structure may be most likely injured by using a right sided anterior approach, in the cervical spine:

Which structure could be most likely injured by using a left sided anterior approach in the cervical spine:

Isthmic spondylolisthesis is believed to be caused which of the following mechanisms:

Which of the following conditions is most associated with isthmic spondylolisthesis:

High-grade spondylolisthesis has been associated with: