What is a common symptom described in cases of meniscal injury?

In cases of meniscal injury, episodes of knee locking are a common symptom. This phenomenon occurs when a torn piece of the meniscus becomes caught in the knee joint, leading to a mechanical block that prevents full movement. Patients may describe feeling as though their knee is locked in place or unable to fully extend or flex. This locking can result in an inability to straighten the knee, accompanied by anguish or discomfort, indicating that there is a significant issue within the joint structure.

The presence of swelling of the entire leg is less specific and could relate to various conditions, while a history of joint dislocation typically pertains to different types of knee injuries rather than isolated meniscal tears. Severe pain with straight leg raises may indicate other issues, such as patellar or quadriceps problems, but it is not directly indicative of meniscal tears. Thus, the characteristic locking of the knee is a hallmark sign of a meniscal injury, making it the correct answer in relation to the question.