The knee, a complex and frequently used joint, relies on structures known as menisci for stable and smooth movement. These two C-shaped pieces of cartilage act as shock absorbers between the thighbone and shinbone, cushioning the joint and distributing weight evenly. Understanding the sensations and symptoms associated with a sprained or torn meniscus can provide clarity on this common knee injury.
The Immediate Feeling of Injury
When a meniscus injury occurs, a distinct “pop” or “click” may be felt or heard within the knee, often signaling the cartilage tearing. This can be accompanied by immediate sharp pain, though its intensity varies. Some individuals also report a sudden giving way or tearing sensation.
Initial discomfort can be subtle, allowing continued activity before pain intensifies over several hours. The full extent of the injury often becomes apparent as inflammation develops in the hours following the incident.
Common Ongoing Sensations
Following the initial injury, several sensations develop and persist, indicating damage to the meniscus. Pain is a primary symptom, often described as sharp, aching, or throbbing, and is felt along the joint line. This pain frequently worsens with movements like twisting, squatting, walking, or attempting to fully bend or straighten the leg.
Swelling commonly emerges gradually, several hours or a day or two after the injury. This fluid accumulation can make the knee feel full or tight, restricting normal movement. Swelling may temporarily decrease with rest but often returns with increased activity.
Stiffness is a frequent complaint, characterized by reduced knee range of motion. Individuals often find it difficult to fully bend or straighten their leg, especially after rest. This stiffness can make everyday activities challenging.
Mechanical symptoms are common, including clicking, popping, or catching within the knee joint during movement. “Locking” is a concerning symptom where a torn meniscus piece gets caught, preventing full knee extension. Some individuals also experience the knee “giving out” or buckling, indicating instability.
When to Consult a Professional
Consult a professional for a suspected meniscus injury to ensure proper diagnosis and management. An inability to bear weight on the injured leg is a clear indication for medical consultation. Severe knee pain that does not improve with rest or over-the-counter pain relievers also warrants evaluation.
Persistent swelling, stiffness, or mechanical symptoms like locking, catching, or the knee giving way should prompt a professional visit. Medical advice is also recommended if you notice any significant knee deformity, or if symptoms worsen or do not improve after a few days.