Spine Disorders Practice Questions

Q: In which condition is the Milwaukee Brace primarily used?

Adolescent Idiopathic Scoliosis. ***Adolescent Idiopathic Scoliosis*** - The **Milwaukee Brace** is a widely recognized and historically significant orthotic device used primarily for the non-surgical management of **scoliosis**, particularly **adolescent idiopathic scoliosis**. - It works by applying corrective forces to the spine to prevent further curvature progression and often allows for some correction during growth. *Congenital Kyphosis* - **Congenital kyphosis** is a spinal deformity present at birth, often caused by vertebral malformations, which is typically managed surgically, especially if progressive. - While bracing can be attempted for mild, flexible curves, the Milwaukee Brace is not the primary or most effective treatment for its structural nature. *Scheuermann's Disease* - **Scheuermann's disease** is a form of kyphosis where wedging of the vertebrae causes a rigid, exaggerated forward curvature of the thoracic spine. - While bracing can be used to treat Scheuermann's disease, the **Milwaukee brace** is not the brace of choice. A **kyphosis-specific brace** such as a kyphosis-bifocal brace or a molded thoracolumbar sacral orthosis (TLSO) is typically preferred. *Spondylolisthesis* - **Spondylolisthesis** involves the forward slippage of one vertebra over another, often in the lumbar spine. - Management typically involves activity restriction, physical therapy, and sometimes surgical fusion, with bracing aimed at stabilizing the spine rather than correcting a lateral curve, making the Milwaukee Brace unsuitable.

Q: Vertebra Plana is associated with all of the following conditions except -

Scheurmanns Disease. ***Scheurmanns Disease*** - **Scheuermann's disease** is characterized by **vertebral wedging** and **kyphosis**, not a complete flattening of the vertebral body (vertebra plana). - It involves irregularities of the vertebral endplates and Schmorl's nodes, differing from the destructive process seen in vertebra plana. *Histiocytosis X* - **Histiocytosis X** (Langerhans cell histiocytosis) can cause destructive lesions in the vertebral body, leading to its collapse and the appearance of **vertebra plana**. - This condition is common among young children and is associated with eosinophilic granuloma. *Leukemia* - **Leukemic infiltration** of bone marrow can weaken vertebral bodies, causing **osteopenia** and eventual collapse, which may present as vertebra plana. - This is often seen in pediatric patients with acute lymphoblastic leukemia. *Excessive use of systemic steroids* - Long-term or excessive use of **systemic corticosteroids** can lead to **osteoporosis**, which weakens bones and makes vertebral bodies prone to compression fractures and collapse into vertebra plana. - This iatrogenic cause results from the negative impact of steroids on bone formation and increased bone resorption.

Q: Adson's test is positive in -

Cervical rib. ***Cervical rib*** - **Adson's test** assesses for **thoracic outlet syndrome (TOS)**, which can be caused by a cervical rib compressing the **subclavian artery** or **brachial plexus**. - A positive test occurs when the radial pulse diminishes or disappears upon specific head and arm maneuvers, indicating neurovascular compression. *Cervical spondylosis* - This condition involves **degenerative changes** in the cervical spine, such as bone spurs and disc herniation. - While it can cause neurological symptoms, it typically does not lead to a positive Adson's test, as the compression site is different from that assessed by the test. *Cervical fracture* - A cervical fracture is a **traumatic injury** to the bones of the neck. - Adson's test is not indicated for diagnosing fractures and performing it could exacerbate the injury. *Cervical dislocation* - Cervical dislocation is a severe injury where cervical vertebrae are **displaced from their normal alignment**. - Similar to fractures, Adson's test is not appropriate for diagnosing or evaluating dislocations and carries a risk of further injury.

Q: Halopelvic traction is primarily used for correcting which specific spinal deformity?

Kyphosis. **Kyphosis** * **Halopelvic traction** is a technique specifically designed to apply sustained corrective forces to the spine, making it particularly effective in treating severe **kyphosis**, especially in young patients prior to surgical correction. * It aids in gradually stretching soft tissues and straightening the spinal curvature over time, often used in cases of congenital or severe developmental kyphosis. *Scoliosis* * While traction can be used in some spinal deformities, **scoliosis** (lateral curvature) is more commonly treated with **bracing** or **surgical fusion**, as halopelvic traction is less effective in correcting the rotational component. * Correction of scoliotic curves typically involves forces applied in multiple planes, which halopelvic traction is not ideally suited for. *Spondylolisthesis* * **Spondylolisthesis** involves the **slippage of one vertebra over another**, which is primarily managed through **stabilization** to prevent further slippage. * Halopelvic traction is not indicated as it could potentially exacerbate instability in the presence of vertebral slippage. *Spinal stenosis* * **Spinal stenosis** refers to the **narrowing of the spinal canal**, which compresses nerves and is usually treated with **decompressive surgery** or **conservative management** for pain relief. * Traction methods are generally not used for spinal stenosis as they do not address the underlying anatomical narrowing and may worsen symptoms.

Q: Block vertebrae are seen in which condition?

Klippel-Feil syndrome. ***Klippel-Feil syndrome*** - **Block vertebrae** are a characteristic radiographic finding in **Klippel-Feil syndrome**, resulting from the congenital fusion of two or more cervical vertebrae. - This fusion leads to a **short neck**, **low hairline**, and **restricted neck motion**. *Pagets disease* - **Paget's disease** is a chronic condition of abnormal bone remodeling, leading to enlarged and weakened bones. - While it can cause vertebral body changes, **block vertebrae** resulting from congenital fusion are not a typical feature. *Leukemia* - **Leukemia** involves uncontrolled proliferation of abnormal white blood cells, which can infiltrate bone marrow and cause lytic or blastic lesions in bones. - It does not cause **block vertebrae**, which are a developmental anomaly. *TB* - **Tuberculosis (TB) of the spine (Pott's disease)** is an infectious condition causing vertebral destruction, collapse, and kyphosis. - While TB can lead to vertebral collapse and eventual fusion during healing, the primary pathology is destructive and not the congenital fusion seen as **block vertebrae**.

Q: How is the degree of deformity in scoliosis calculated?

Cobb's method. ***Cobb's method*** - This is the **standard radiographic measurement** used to assess the severity of spinal curvature in scoliosis. - It involves drawing lines along the **most tilted vertebrae** at the ends of the curve and measuring the angle formed by their intersection. *Hamburger method* - This is not a recognized method for calculating the degree of deformity in scoliosis. - There is **no established medical or orthopedic technique** bearing this name for scoliosis assessment. *Haldane method* - This method is primarily used in **biochemistry** to describe **enzyme kinetics** and is unrelated to scoliosis measurement. - It describes the relationship between reaction rates and reactant concentrations in biological systems. *Milwaukee method* - The **Milwaukee brace** is a historical type of orthotic device used to treat scoliosis, but it is not a method for calculating the degree of deformity. - While it is associated with scoliosis treatment, it does not involve the measurement of the curve itself.

Q: Anterolateral decompression is primarily indicated for

Spinal tuberculosis (Pott's disease). ***Spinal tuberculosis (Pott's disease)*** - **Anterolateral decompression** is crucial for **Pott's disease** to remove infected bone and pus, relieve pressure on the spinal cord, and facilitate fusion. - This approach allows direct access to the anterior spinal column, which is commonly affected by the destructive process of **tuberculosis**. *Spinal metastasis* - While spinal metastasis can cause compression, **anterolateral decompression** is less common as a primary approach; often, surgical treatment involves posterior decompression, stabilization, and adjuvant therapies like radiation. - The goal is often **pain management** and neurological preservation in the context of advanced disease. *Lumbar disc herniation* - **Lumbar disc herniation** is typically addressed by posterior approaches like **microdiscectomy** or laminectomy, which directly access the posterior aspect of the disc. - **Anterolateral decompression** is generally not indicated as the primary treatment for standard disc herniations. *Ankylosing spondylitis* - Surgical intervention in **ankylosing spondylitis** is usually reserved for severe kyphosis or spinal fractures, employing osteotomies and stabilization techniques, often through posterior approaches. - **Anterolateral decompression** is not a standard procedure for the typical manifestations or complications of **ankylosing spondylitis**.

Q: What is the most common movement force involved in fractures of the spine?

Compression. ***Compression*** - **Axial compression** due to falls from a height or direct impact is the most frequent mechanism leading to vertebral body fractures, such as **compression fractures**. - These forces typically crush the vertebral body, often without significant displacement of bone fragments. *Flexion* - While often present in spinal fractures, pure **flexion forces** alone are less common than compression as the primary force. - Flexion forces are most frequently involved in **wedge fractures** and **flexion-distraction injuries**, where they are often combined with compression or distraction. *Extension* - **Extension injuries** are relatively rare and usually occur in specific scenarios like being struck in the chin or in elderly patients with **ankylosing spondylitis**. - These forces can lead to fractures of the posterior elements or **hyperextension injuries** of the anterior spinal column. *Lateral Rotation* - **Rotational forces**, especially when combined with flexion or extension, can cause unstable fracture patterns like **fracture-dislocations**. - However, isolated **lateral rotation** as the primary injury mechanism is much less common than axial compression.

Q: What is the most common site of spinal tuberculosis?

T10-L1. ***T10-L1*** - The **thoracolumbar junction** (T10-L1) is the most common site for spinal tuberculosis (Pott's disease) due to its high vascularity and mechanical stress. - This region is particularly susceptible to hematogenous spread of *Mycobacterium tuberculosis*. *C7-T1* - While cervical spine involvement can occur, the **C7-T1 region** is less frequently affected by spinal tuberculosis than the thoracolumbar junction. - Tuberculosis in the cervical spine poses a higher risk for neurological deficits due to the smaller canal diameter. *T1-T5* - The mid-thoracic region (T1-T5) is less common for spinal tuberculosis compared to the thoracolumbar area. - Lesions in this area can still cause significant deformity (gibbus) and potential neurological compromise. *T10-L2* - This option is very close to the correct answer, but **T10-L1** specifically represents the peak incidence within the thoracolumbar region. - Including L2 slightly extends the range, but the highest concentration of cases is typically observed at the junction itself.

Q: Which of the following sites is least common for intervertebral disc prolapse?

T3 - T4. ***T3 - T4*** - Intervertebral disc prolapse is **rare in the thoracic spine** (T2-T12) due to the limited mobility and strong rib cage support. - The T3-T4 level is particularly uncommon as it is located in the **mid-thoracic region**, which experiences less mechanical stress than the thoracolumbar junction. *L4 - L5* - This is one of the **most common sites** for lumbar disc prolapse, accounting for a significant percentage of cases. - The L4-L5 disc is subjected to **considerable mechanical stress** and movement during daily activities. *L5 - S1* - The L5-S1 disc is also a **very common site** for prolapse, frequently second only to L4-L5. - This level experiences high **compressive and rotational forces** due to its position at the base of the lumbar spine. *C6 - C7* - This is the **most common site for cervical disc prolapse**, especially in cases of cervical radiculopathy. - The C6-C7 segment experiences significant **flexion-extension and rotational movements**, predisposing it to disc degeneration and herniation.

Question 1

In which condition is the Milwaukee Brace primarily used?

Accepted Answer

Adolescent Idiopathic Scoliosis

Answer

Spondylolisthesis

Answer

Scheuermann's Disease

Answer

Congenital Kyphosis

Question 2

Vertebra Plana is associated with all of the following conditions except -

Accepted Answer

Scheurmanns Disease

Answer

Leukemia

Answer

Excessive use of systemic steroids

Answer

Histiocytosis X

Question 3

Adson's test is positive in -

Accepted Answer

Cervical rib

Answer

Cervical spondylosis

Answer

Cervical fracture

Answer

Cervical dislocation

Question 4

Halopelvic traction is primarily used for correcting which specific spinal deformity?

Accepted Answer

Kyphosis

Answer

Spondylolisthesis

Answer

Scoliosis

Answer

Spinal stenosis

Question 5

Block vertebrae are seen in which condition?

Accepted Answer

Klippel-Feil syndrome

Answer

Pagets disease

Answer

Leukemia

Answer

TB

Question 6

How is the degree of deformity in scoliosis calculated?

Accepted Answer

Cobb's method

Answer

Hamburger method

Answer

Haldane method

Answer

Milwaukee method

Question 7

Anterolateral decompression is primarily indicated for

Accepted Answer

Spinal tuberculosis (Pott's disease)

Answer

Lumbar disc herniation

Answer

Ankylosing spondylitis

Answer

Spinal metastasis

Question 8

What is the most common movement force involved in fractures of the spine?

Accepted Answer

Compression

Answer

Extension

Answer

Flexion

Answer

Lateral Rotation

Question 9

What is the most common site of spinal tuberculosis?

Accepted Answer

T10-L1

Answer

C7-T1

Answer

T1-T5

Answer

T10-L2

Question 10

Which of the following sites is least common for intervertebral disc prolapse?

Accepted Answer

T3 - T4

Answer

L4 - L5

Answer

L5 - S1

Answer

C6 - C7

Spine Disorders — MCQs

Spine Disorders — MCQs

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