← Knee conditions

PART I · DIAGNOSIS

Meniscus Tear on MRI — What Does It Really Mean?

Part I: what the meniscus is, why it can tear, and why an MRI finding alone is not an indication for surgery.

← All meniscus resources

Watch the episode in English

What do the menisci do?

The menisci are flexible structures between the femur and tibia. They distribute loads, increase the contact area and help stabilise the knee. They protect the articular cartilage from excessive loading. This is why we try to preserve as much healthy meniscal tissue as possible.

Key topics

How can an orthopaedic surgeon assess your knee?

Information in this series can help you prepare for a medical consultation. During the visit, MRI findings can be considered alongside your symptoms and knee examination.

Part III — repair or remove the damaged part?

Listen to the episode about meniscus repair, partial removal, rehabilitation, transplantation and reconstruction.

References

AAOS — acute isolated meniscal pathology guideline (2024); BMJ — recommendations for degenerative knee disease.

Your MRI report: a consultation worksheet

Bring the images as well as the report, previous investigations and a short symptom history. Note when pain began, whether there was an injury, where it hurts and which daily tasks are difficult. “Meniscus tear” is a starting point for a discussion, not a complete treatment plan.

Five questions to work through

  1. Does this finding explain my symptoms? Ask how the scan matches the painful area and examination. What is the condition of the cartilage, underlying bone and ligaments?
  2. What type of tear is present? A longstanding horizontal change, displaced fragment, root injury and recent traumatic tear can raise different questions. A longer report does not necessarily mean a more urgent problem.
  3. Is this true locking? Describe whether the knee can straighten, whether pain stops the movement or whether there is a persistent block. Avoid trying twisting diagnostic tests on yourself.
  4. Would another investigation change treatment? X-rays can help assess bone and arthritis. Ultrasound can answer selected questions, but cannot assess every part of the meniscus and internal joint structures equally well.
  5. What happens next? Ask for an agreed treatment goal, loading advice, review date and reasons to seek earlier reassessment.

Similar reports can lead to different decisions

A patient with gradually developing symptoms, full extension and improvement during rehabilitation needs a different discussion from someone with a recent twisting injury and a knee that will not straighten. This illustrates clinical reasoning; it is not a way to decide on surgery without assessment.

Before leaving, write down: the working diagnosis, agreed treatment, restrictions, follow-up date and how to contact the team if symptoms change. Ask which new findings would change the plan.

Clinical reference: AAOS — acute isolated meniscal pathology: guideline scope and recommendations.

Author: Tomasz Poboży - orthopaedic surgeon, MD, PhD. Layout updated: 4 October 2026.

This educational resource does not replace an individual medical assessment.