Patient question
Why did my meniscus tear when I do not remember injuring my knee?
Dr. Pablo GelberOrthopaedic Knee Surgeon
Quick answer
From around 40, the meniscus gradually loses water and elasticity, so it can split with ordinary movements such as rising from the floor or turning on a bent knee. These degenerative tears often happen without a memorable injury, explains Dr. Pablo Gelber, knee surgeon in Doha, and they are usually managed differently from sports tears.
How an ageing meniscus tears
A young meniscus is a firm, springy pad. Over the years its fibres become drier and more brittle, and small splits develop inside the tissue, often first in the back of the medial meniscus. One day an ordinary movement completes the split and it reaches the surface, which is when pain begins.
People often link it to a trivial moment, such as kneeling to look under a car, standing up after a long majlis, or stepping awkwardly off a kerb.
What increases the risk
- Age, with tears becoming common from the 40s onward
- Extra body weight, which multiplies the load through the knee with every step
- Bow legs, which concentrate load on the inner side of the knee
- Jobs and habits that involve frequent deep squatting or kneeling
- An old ACL injury or previous meniscus surgery
- Early osteoarthritis, which often travels with a worn meniscus
What a degenerative tear means for the knee
A degenerative tear is often a sign that the inner compartment of the knee is under strain, rather than a single fault that needs removing. That is why guidelines favour exercise therapy and load management first, and why arthroscopic trimming is not routinely recommended for degenerative tears without true mechanical symptoms.
One important exception is a root tear, which can appear suddenly in middle age with a pop at the back of the knee. It behaves like losing the meniscus entirely and may need repair.
When to have it checked in Doha
See a knee surgeon if pain lasts more than a few weeks, if you felt a sudden pop at the back of the knee followed by pain on weight-bearing, or if the knee locks. At Aman Hospital, Dr. Gelber often adds standing X-rays to check alignment and arthritis, which shape the advice as much as the tear itself.
Frequently asked questions
Does sitting on the floor cause meniscus tears?
Floor sitting does not damage a healthy young knee, but the deep bend loads the back of the meniscus. In a worn meniscus it is a common moment for a tear to show itself. A low cushion or stool reduces the strain.
Will losing weight help a degenerative tear?
Often, yes. Reducing body weight lowers the load on the inner knee with every step and tends to make exercise therapy more effective.
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