What Is a Meniscus Injury?

The meniscus is a C-shaped piece of cartilage in the knee that helps absorb shock, distribute load, and support stability between the thigh bone and shin bone. Each knee has two menisci: the medial meniscus on the inside of the knee and the lateral meniscus on the outside of the knee.

A meniscus injury can occur when the knee twists, pivots, bends deeply, or absorbs force under load. This is common in sports that involve cutting, pivoting, jumping, squatting, or sudden direction changes, such as soccer, basketball, football, hockey, tennis, pickleball, skiing, and gym training. Meniscus injuries can also develop gradually over time due to degenerative changes, repetitive stress, or age-related tissue changes.

Patients often associate terms such as meniscus tear, knee cartilage tear, knee pain when squatting, knee clicking, knee locking, knee swelling, or pain on the inside of the knee. Symptoms can vary depending on the size, location, and severity of the tear.

A confirmed diagnosis of a meniscus injury should be made by a licensed medical doctor using appropriate clinical assessment and imaging if needed. Some meniscus tears are managed conservatively with physiotherapy, while others may require surgical consultation depending on severity, locking symptoms, tear type, joint mechanics, age, activity goals, and overall knee function.

Individuals May Experience

• Knee pain during bending or twisting

• Pain on the inside or outside of the knee

• Clicking, catching, or locking sensations in the knee

• Swelling around the joint

• Difficulty squatting or kneeling

• Reduced range of motion

• Stiffness after sitting or activity

• Pain with stairs or getting up from a chair

• Discomfort during pivoting or changing direction

• Difficulty walking normally during flare-ups

• A feeling that the knee is stuck or blocked

• Weakness or instability around the knee

• Reduced confidence during sport, work, or exercise

• Pain that worsens after deep knee bending or loaded activity

Mechanical locking, inability to fully straighten the knee, significant swelling, major trauma, or severe instability should be assessed by a medical professional.

What Contributes to a Meniscus Injury?

Several factors may contribute to a meniscus injury or meniscus tear, including:

• Twisting or pivoting movements

• Deep squatting under load

• Sudden changes in direction

• Landing awkwardly from a jump

• Degenerative changes over time

• Weakness in supporting muscles

• Poor hip, knee, or ankle mechanics

• Reduced quadriceps or hamstring strength

• Poor single-leg control

• Limited knee, hip, or ankle mobility

• Previous knee injuries

• Returning to sport or activity too quickly

• Repetitive kneeling, squatting, or loaded bending

These factors may increase stress on the knee joint during activity. The meniscus helps distribute force across the knee. When strength, alignment, or movement control is reduced, more strain may be placed through the cartilage and surrounding joint structures.

For example, weak quadriceps may reduce control during stairs and squats. Poor hip stability may allow the knee to collapse inward during cutting or landing. Limited ankle or hip mobility may force the knee to absorb more twisting stress. Over time, these mechanics can affect the way the knee handles load.

Why Physiotherapy Is Important for Knee Integrity

Physiotherapy is important because the meniscus plays a major role in how the knee absorbs load during daily life. Walking, stairs, standing from a chair, kneeling, squatting, lifting, exercise, and sport all require the knee to tolerate force repeatedly.

After a meniscus injury, the body may protect the knee by changing how it moves. You may avoid bending, shift weight to the opposite side, walk with a limp, reduce pressure through the injured leg, or avoid using the quadriceps fully. These compensations may help temporarily, but over time they can create weakness, stiffness, poor balance, and extra strain on the hip, ankle, or lower back.

Physiotherapy helps maintain the integrity of the knee by improving the muscles and movement patterns that support the joint. Strong quadriceps, hamstrings, glutes, calves, and hip stabilizers help control how force moves through the knee. Better strength and control may reduce unnecessary strain through the meniscus and improve tolerance for daily activity.

For some meniscus tears, surgery may be considered depending on severity and symptoms. However, whether the plan is conservative management or post-surgical rehabilitation, physiotherapy is often an important part of restoring knee function, rebuilding strength, and improving long-term movement quality.

How Physiotherapy May Help

Physiotherapy focuses on improving knee function, reducing strain on the joint, and restoring confidence with movement. Treatment is based on the type of symptoms present, activity goals, severity, surgical status, and tolerance to loading.

Treatment may include:

• Strengthening of the quadriceps and hamstrings

• Glute and hip strengthening to improve knee control

• Mobility exercises for the knee

• Range of motion restoration

• Swelling and load management strategies

• Movement retraining during daily activities

• Balance and stability training

• Gait retraining for walking mechanics

• Squat, step, lunge, and stair retraining

• Gradual return to activity

• Return-to-running or return-to-sport progression when appropriate

• Education on avoiding aggravating movements during early recovery

• Post-operative rehabilitation if surgery is performed

These exercises help restore knee function and improve tolerance to movement. Early physiotherapy may focus on reducing swelling, restoring range of motion, and improving walking. Later stages may focus on strengthening, balance, functional control, sport-specific activity, and long-term knee resilience.

The goal is not only to reduce pain. The goal is to help the knee become strong, stable, mobile, and prepared for the activities that matter to you.

Book an Assessment

If knee pain, clicking, swelling, stiffness, or difficulty bending is affecting your walking, stairs, squatting, kneeling, work, exercise, or sport, our physiotherapy team can assess your knee function and guide a personalized rehabilitation plan.

A comprehensive assessment can help identify whether your symptoms may be influenced by knee mobility, quadriceps strength, hip control, swelling, balance, movement mechanics, or activity load.