Introduction

Knee injuries are all too common, and for many people, meniscus surgery offers a path to relief. Yet, it’s perfectly natural for patients and their families to feel unsure—not just about what the procedure can do, but also about the risks involved. This uncertainty makes having clear, straightforward information vital.

This article aims to provide just that: a clear and honest look at the potential complications of meniscus surgery, based on clinical evidence and expert insight. Drawing on the extensive experience of Professor Paul Lee, a specialist in orthopaedics and rehabilitation at MSK Doctors, we hope to help you make an informed choice about your treatment.

Examining Meniscus Surgery: Purpose, Procedure, and Patient Expectations

The meniscus is a crescent-shaped piece of cartilage that cushions your knee, helping absorb shocks and keep the joint stable. When it’s damaged—whether from injury or everyday wear—you might feel pain, swelling, or limited movement.

There are two main surgical options: repairing the meniscus or removing the damaged part. Repair is usually preferred when the tear is in an area likely to heal well, while removal is considered if repair isn’t possible. Which option suits you best depends on the tear’s type, position, and your overall health.

In some cases, a newer technique called centralisation is used to address meniscal extrusion—where the cartilage slips out of place. Research shows that this method “can reduce meniscal extrusion and improve joint biomechanics, along with clinical and radiological outcomes” (Boksh et al., 2024). This means it may help the knee work more naturally and improve your recovery.

Most patients hope surgery will ease pain, restore function, and get them back to normal activity. Surgery aims to stabilise the knee and help prevent further damage. Still, it’s important to weigh these benefits against possible risks.

Common and Rare Complications: What Patients Should Know

As with any surgery, there are risks involved. Common issues include infections, blood clots, swelling that doesn’t go away, ongoing pain, and stiffness in the joint. These aren’t frequent but can impact your recovery. Notably, “older age, smoking, and comorbidity burden were significant predictors of postoperative complications, reoperations, and/or readmissions” (Ford et al., 2024).

More serious yet uncommon complications can include nerve or blood vessel damage, which might cause numbness or circulation problems. Anaesthesia also carries a small risk. Occasionally, the meniscus may not fully heal, or symptoms persist after surgery. Age is a key factor here; those aged 80 or above face a higher chance of complications shortly after surgery, with an odds ratio of 3.5 (Ford et al., 2024).

Exposure to physical activity post-surgery can also affect knee health. For example, “knees with prior meniscus surgery could experience greater extrusion of medial meniscus (<13%) following running, whereas ACL-reconstructed and healthy knees do not show comparable changes” (Kim et al., 2026). This means the knee cartilage may shift more after exercise in some people, which is worth considering during recovery.

Professor Paul Lee stresses, “Understanding these risks helps both surgeon and patient to watch for problems and take early action if needed, improving safety and outcomes.”

Myths, Misunderstandings, and Frequently Asked Questions

Many people believe meniscus surgery will guarantee a knee free of pain. In reality, some continue to face discomfort or movement restrictions. Another common misconception is that complications are very rare and minor—this can lead to underestimating what recovery might involve. Some also think all meniscal tears require immediate surgery, while many can be managed without the scalpel.

Understanding why pain might linger helps set realistic expectations. It can be due to incomplete healing, arthritis development, or challenges during rehabilitation. Research confirms that outcomes vary and surgery is no magic fix. On a positive note, obesity doesn’t appear to be a major risk factor for complications after meniscus surgery (Ford et al., 2024).

Regarding centralisation, while early results are encouraging, experts caution that “existing evidence is still scarce and exhibits a notable amount of methodological heterogeneity” (Boksh et al., 2024). Meaning, more research is needed before it becomes a standard recommendation.

Balancing Risks and Benefits: Professional Advice for Navigating Surgery Decisions

Deciding on meniscus surgery means balancing the likely benefits—such as reduced pain and improved knee stability—against the risks. Many patients find surgery highly beneficial, especially after conservative treatments haven’t worked.

The best way to lower the risk of complications is to follow your medical team’s instructions precisely before and after surgery. Keep an eye out for warning signs like unusual pain, swelling, or fever during recovery, and report them promptly. Choosing an experienced surgeon and a supportive clinic, like Professor Paul Lee and his team at MSK Doctors, can also make a big difference.

Always feel free to talk openly about your worries with your healthcare team and don’t hesitate to seek a second opinion if you’re uncertain. This approach ensures your choices are personalised and well-informed.

Conclusion

Knowing both the benefits and risks of meniscus surgery gives you the confidence to make the best decision for your circumstances. Expert advice and evidence-based care are crucial components of successful treatment.

With active participation and professional support, you can maximise your chances of a smooth recovery and enjoy better knee function and quality of life.

References

• Ford, B. T., Kong, R. M., Wellington, I. J., Segreto, F. A., Mai, D. H., Zhou, J. J., & Urban, W. (2024). Impact of Obesity, Smoking, and Age on 30-Day Postoperative Outcomes of Patients Undergoing Arthroscopic Meniscus Surgery. Orthopedics. https://doi.org/10.3928/01477447-20240826-04
• Boksh, K., Shepherd, D. E. T., Espino, D. M., Ghosh, A., Aujla, R., & Boutefnouchet, T. (2024). Centralization reduces meniscal extrusion, improves joint mechanics and functional outcomes in patients undergoing meniscus surgery: A systematic review and meta‐analysis. Knee Surgery & Arthroscopy. https://doi.org/10.1002/ksa.12410
• Kim, J., Kang, E.-C., & Park, J. (2026). Medial Meniscus Extrusion After 30-Minute Running in Individuals Who Underwent Meniscus Surgery or ACL Reconstruction and Healthy Controls. Journal of Sport Rehabilitation. https://doi.org/10.1123/jsr.2025-0349