The most common sequelae of tuberculous spondylitis in an adolescent is-
**Core Concept**
Tuberculous spondylitis, also known as Pott's disease, is a type of osteoarticular tuberculosis that primarily affects the vertebrae. It is a complication of tuberculosis infection and can lead to various sequelae in affected individuals.
**Why the Correct Answer is Right**
The most common sequelae of tuberculous spondylitis in adolescents is kyphosis or gibbus deformity. This occurs due to the collapse of the vertebral bodies and subsequent destruction of the spinal column. The kyphotic deformity can be a result of the vertebral bodies becoming increasingly weakened and eventually collapsing, leading to a hunched back appearance. This deformity can be a significant concern in adolescents and young adults as it can affect their posture, mobility, and overall quality of life.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it does not accurately represent the most common sequelae of tuberculous spondylitis in adolescents. While paralysis can be a complication of tuberculous spondylitis, it is not the most common sequelae.
* **Option B:** This option is incorrect as it does not accurately represent the most common sequelae of tuberculous spondylitis in adolescents. While neurological deficits can be a complication of tuberculous spondylitis, they are not the most common sequelae.
* **Option D:** This option is incorrect as it does not accurately represent the most common sequelae of tuberculous spondylitis in adolescents. While spinal cord compression can be a complication of tuberculous spondylitis, it is not the most common sequelae.
**Clinical Pearl / High-Yield Fact**
It is essential to recognize the potential for kyphosis or gibbus deformity in patients with tuberculous spondylitis. Early diagnosis and treatment are crucial to prevent or minimize the development of this deformity.
**Correct Answer:** C. Kyphosis or gibbus deformity.