A 15-year-old boy is brought to the office complaining of low back pain of 2 months duration. He is a basketball player, and the pain is exacerbated after training sessions. He does not have a history of trauma and does not complain of motor or sensory deficits Vital signs are within normal limits. On examinations, there is point tenderness over the L5 region, otherwise, the neurological examination is free without any deficits. A spine X-ray shows displacement of L5 relatively vertebrae over S1. This patient's condition is most likely caused by injury to which of the following structures?

Question

Quizplus · Accepted Answer

Eductional Objective: Pars interarticularis is the point of fracture in the posterior vertebral arch fractures leading to spondylolysis. Spondylolisthesis (Anterior displacement of the vertebral body) could result from the bilateral damage of the pars interarticularis.

A 15-Year-Old Boy Is Brought to the Office Complaining of Low