Meniscus Tear

Understanding the meniscus

Each knee has two menisci: cushions of fibrocartilage between the thighbone and shinbone. They distribute load and contribute to stability. A tear may follow a twist or develop in tissue that has changed over time. An MRI finding does not automatically mean an operation is required. AAOS explains meniscus tears.

The useful question is how the finding relates to your symptoms and goals. A person who cannot straighten the knee after an injury has a different immediate problem from someone with intermittent discomfort over several months. Tell the clinician what has changed, what you can still do and what you are avoiding. The word “tear” on a report is a starting point for discussion, not a complete treatment plan.

Symptoms and how tears occur

Pain, swelling, stiffness, catching and difficulty fully bending or straightening are possible symptoms. Some people can initially walk after the injury. A sporting pivot can cause an acute tear, while a smaller twist may affect a degenerative meniscus. ACL injuries and meniscal damage can occur together. AAOS symptoms and causes.

Write down when swelling appeared and whether the knee actually stops moving or simply hurts during movement. Note any previous knee problems and whether the new injury has altered an old symptom. If you can recall the direction of the twist, describe it, but do not try to recreate a painful manoeuvre at home. Ordinary descriptions are more useful than trying to reproduce a clinical examination from a video.

Assessment and useful tests

The examination considers movement, tenderness and stability. X-rays assess the bone and possible arthritis rather than showing the meniscus itself. MRI is useful for suspected acute tears and associated soft-tissue injury. Test findings are interpreted alongside your history. AAOS evaluation.

Ask whether the tear is thought to be the main source of pain and whether another condition also needs attention. If an MRI was performed elsewhere, bring its images and report. A sentence describing a tear is not the same as the clinician being able to inspect its pattern. Ask which findings affect the treatment choice and which are incidental or uncertain.

The AAOS acute isolated meniscus guideline applies to a particular injury group; its recommendations should not be applied automatically to degenerative tears or injuries combined with ligament damage. AAOS guideline summary.

Care without surgery

Some tears improve with non-surgical care. Physiotherapy can address movement and strength, and initial activity modification may help manage symptoms. Pain relief should be selected with a clinician or pharmacist who knows your other medicines and health conditions. NHS treatment overview.

Agree what the trial of treatment involves and when it will be reviewed. Ask whether work duties, sport or particular movements need temporary adjustment. If an exercise provokes a problem, report what happened and ask for advice; do not assume that abandoning the whole programme or pushing through severe pain are the only options. Bring the written exercise plan to follow-up so the team can discuss what you actually attempted.

A good follow-up conversation is specific. Instead of “the knee is the same”, you might say that walking is easier but descending stairs is still difficult, or that swelling returns after a particular activity. Record any locking episode and whether the knee freed itself. Your experience helps the clinician judge whether the current approach is meeting its intended purpose.

When arthroscopy is considered

A displaced tear restricting movement or persistent symptoms despite appropriate care may lead to a surgical discussion. Preserving functional meniscal tissue is an important aim when surgery is indicated. Whether repair is feasible depends on the tear and tissue quality. AAOS acute meniscus guidance.

Repair holds suitable tissue together with sutures. Partial meniscectomy trims a damaged portion when repair is unsuitable. Repair needs time for tissue healing and often involves greater protection during rehabilitation. Possible surgical problems include infection, blood clots, stiffness, persistent symptoms and failure of a repair. AAOS meniscus repair information.

Ask what procedure is planned, what might change when the surgeon sees the tear and how that would affect recovery. Clarify whether the consent covers repair, trimming or both. Discuss alternatives and the consequences of waiting. Avoid choosing an operation purely because its initial recovery sounds shorter; ask how tissue preservation and your longer-term priorities enter the decision.

Recovery and practical planning

Recovery varies with the operation and any accompanying injury. The instructions after a repair can differ substantially from those after trimming, particularly for weight bearing and knee movement. Follow the plan issued for your own procedure. AAOS repair and rehabilitation guidance.

Before surgery, ask how you will manage stairs, bathing, commuting and time away from physical work. After surgery, keep a copy of the procedure note or discharge summary for the physiotherapist. If the final procedure differed from the plan, ask the surgeon to explain the new restrictions. Do not borrow a friend’s exercise timetable because their operation was also called “keyhole surgery”.

Urgent symptoms

Get urgent help for severe pain, inability to bear weight, a knee that cannot bend or straighten, or a hot swollen knee with fever. A changed joint shape or loss of sensation after injury needs emergency assessment. NHS warning signs.

Do not wait for a routine appointment message in these circumstances. When the problem is non-urgent, use the consultation to understand the diagnosis, compare options and agree how progress will be measured.

Keeping the plan clear

When you leave a review, write down the next step in one sentence: continue the agreed programme until review, obtain a particular investigation, or discuss a defined procedure. Add who is arranging it and when you should hear back. If this remains unclear, ask the clinic to explain it. A decision about a tear should leave you knowing what to do next, not just which words appeared on the scan.