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Review Question - QID 146

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QID 146 (Type "146" in App Search)
A mother and her 16-year-old daughter present to your clinic because the daughter has noticed asymmetries in her back. She has no back pain and no neurologic symptoms. She is two years post-menarcheal. After a complete history and physical, you order PA thoracolumbar radiograph, which is seen in figure A. The cobb angle is 38 degrees. When discussing the natural history of the disease, you tell the family they should expect:
  • A

difficulty with vaginal child birth in the future.

1%

22/2937

decreased pulmonary function in the future

5%

141/2937

to undergo an MRI to rule out any underlying neurologic pathology, as this is an abnormal curve

7%

214/2937

an increased risk of chronic back pain over her lifetime

79%

2334/2937

this curve magnitude has the highest curve progression rate without operative intervention

7%

209/2937

  • A

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Discussion: The patient is presenting with classic adolescent idiopathic scoliosis (AIS). She has an apex at T8, which makes this a main thoracic, Lenke type 1 curve. While AIS is commonly referred to as a painless condition, Weinstein et al. published the 50-year follow-up, of 117 untreated patients with AIS compared to 62 age- and sex-matched controls and found a statistically significant (p = 0.003) increase in chronic back pain over 50 years.

In the aforementioned study by Weinstein et al. they found that while there was an increase risk of chronic low back pain, 68% of the patients with scoliosis and low back pain reported mild or moderate discomfort. Additionally, they found that there was only an increased risk of shortness of breath in patients with a curve greater than 80 degrees.

In another study by the same group, they reported on the risk of curve progression over 40.5 years. They found that curves less than 30 degrees rarely progressed, and thoracic curves measuring over 50 degrees were most likely to progress.

Danielsson and Nachemson reported on the effect of scoliosis, and scoliosis treatment on women’s ability to bear children. They found no difference in rate of cesarean section between women treated with surgery, a brace or a control group. They did find a slight increase in the risk of having to have vacuum extractions in the surgery group compared to either of the other two groups.

Incorrect Answers:
Answer 1: Women who have scoliosis do not have an increased risk of cesarean sections than those without scoliosis
Answer 2: Patients with a 38-degree curve do not have an increased risk of pulmonary dysfunction.
Answer 3: The patient has a Lenke type 1, main thoracic curve. No advanced imaging is needed
Answer 5: The patient is post-menarcheal by 2 years, and her curve is 38 degrees. She has a low risk of curve progression

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