Which condition is characterized by the displacement of a vertebra and can cause leg pain in athletes?

Spondylolisthesis is characterized by the forward displacement of a vertebra over the one below it. This condition can lead to a variety of symptoms, including leg pain, especially in athletes who are involved in activities that place strain on the lower back, such as running, jumping, or lifting. The displacement can cause compression of nearby nerve roots, leading to pain that can radiate into the legs, a condition known as radicular pain.

The development of spondylolisthesis often occurs due to a combination of factors such as degenerative changes, congenital conditions, or stress fractures, particularly in younger athletes who may have underlying weaknesses in the lumbar spine. This makes it more prevalent in sports that involve repetitive hyperextension of the lumbar spine.

Understanding the mechanics of spondylolisthesis is critical for diagnosis and management, as recognizing it early can help guide appropriate treatments to alleviate leg pain and prevent further complications.