6. Spine MCQs

Osteochondromas in the spine most commonly occur in:

Which of the following equations correctly defines the relationship between spinopelvic parameters?

Which of the following spinopelvic parameters is considered a fixed morphological parameter that does not change with posture after skeletal maturity?

When planning surgical correction for adult spinal deformity, the generally accepted target for lumbar lordosis (LL) relative to pelvic incidence (PI) is:

As a patient develops positive sagittal imbalance due to age-related degenerative loss of lumbar lordosis, which of the following compensatory mechanisms initially occurs at the pelvis?

A patient with ankylosing spondylitis presents with severe cervicothoracic kyphosis. Surgical correction is planned. What is the optimal target for the chin-brow vertical angle (CBVA) to ensure appropriate forward gaze?

In the evaluation of cervical sagittal balance, the T1 slope is most analogous to which parameter in the lumbar spinopelvic evaluation?

Proximal junctional kyphosis (PJK) after long-segment spinal fusion is typically defined as a proximal junctional sagittal Cobb angle of at least 10 degrees and a change from the preoperative measurement of at least:

Which of the following spinopelvic parameter profiles is most characteristically associated with a high risk of progression in L5-S1 isthmic spondylolisthesis?

In a healthy adult with normal sagittal alignment, which vertebra typically represents the apex of thoracic kyphosis?

Cervical sagittal vertical axis (cSVA) is used to assess cervical spinal alignment. It is measured as the horizontal distance between the C2 plumb line and the:

In an individual standing upright, if the pelvic incidence is 50 degrees and the pelvic tilt is 15 degrees, what is the orientation of the sacral endplate relative to the horizontal plane?

Which of the following is considered the normal range for cervical lordosis (measured from C2 to C7) in asymptomatic adults?

According to the Roussouly classification of sagittal alignment, a Type 1 spine is typically characterized by which of the following features?

A 65-year-old woman presents with progressive low back pain and leaning forward while walking. Radiographs reveal a pelvic incidence (PI) of 60 degrees. Which of the following formulas correctly defines the relationship between pelvic incidence, pelvic tilt (PT), and sacral slope (SS)?

In surgical planning for an adult patient with severe sagittal imbalance, the surgeon calculates the patient's pelvic incidence (PI) to be 55 degrees. To achieve optimal postoperative sagittal alignment and minimize the risk of adjacent segment disease, the target lumbar lordosis (LL) should be:

Which of the following compensatory mechanisms occurs FIRST in a patient developing progressive positive sagittal spinal imbalance?

Which of the following radiographic parameters is considered a rigid, position-independent morphological feature of the pelvis that does NOT change with patient posture?

During surgical correction of a fixed severe cervicothoracic kyphosis in a patient with Ankylosing Spondylitis, the primary goal is to optimize the patient's horizontal gaze. Which of the following targets for the Chin-Brow Vertical Angle (CBVA) is associated with the best functional outcome?

A 15-year-old girl with Adolescent Idiopathic Scoliosis (AIS) presents for evaluation. In addition to coronal deformity, which of the following is the characteristic sagittal profile seen in the thoracic spine of patients with typical right thoracic AIS?