Introduction

The meniscus is a vital part of the knee joint, acting like a shock absorber and stabiliser between the thigh bone (femur) and shin bone (tibia). This specialised cartilage supports smooth, pain-free movements essential for everyday activities like walking, running, and bending. However, the condition of the meniscus isn’t fixed – it changes with age and is influenced by lifestyle choices. In this article, we’ll explore how ageing and lifestyle impact meniscus health and share practical advice on looking after your knees at every stage of life.

The Ageing Knee: Natural Changes in Meniscal Tissue

Meniscus damage comes in two main forms: sudden injuries and gradual degeneration. Sudden injuries often happen during sports or accidents when the knee twists sharply, more common in younger people. On the other hand, meniscus degeneration is a slow, ongoing breakdown that typically develops with age and repeated strain.

As we get older, the meniscus becomes less flexible and more fragile, making it more prone to tears even from minor stress. The tiny blood vessels supplying the meniscus also reduce in number, which hampers the tissue’s ability to heal. Degenerative tears usually affect the inner areas of the meniscus that have poor blood supply. The medial meniscus, which sits on the inside of the knee, bears most of the weight and is therefore more likely to tear in older adults. In fact, research points out that “age-related meniscus injury involves inflammaging, but biomarkers and mechanisms remain unclear” (Yang et al., 2025), highlighting the complex nature of meniscal ageing.

Recent studies using advanced tissue analysis tools reveal that “degeneration assessed by OARSI grades and modified Pauli scores increase with age in persons without clinically-evident knee arthritis” (Sjögren et al., 2025). Interestingly, around half of elderly individuals show only mild degeneration, showing that ageing affects people differently. Studies in ageing animal models also add to the picture, noting “a significant increase in Atf3+ senescent chondrocytes, characterised by senescence markers and inflammatory pathway activation” (Wang et al., 2025), which play a role in meniscus wear and tear.

Lifestyle’s Role: How Daily Habits Influence Meniscus Health

While getting older naturally affects the meniscus, lifestyle plays a huge part in either protecting the knee or making it more vulnerable. High-impact sports like football and rugby put the knees under great pressure and increase the chance of sudden meniscus injuries. Similarly, jobs that involve lots of kneeling, squatting, or heavy lifting can speed up wear and tear. Conversely, spending too much time sitting or inactive weakens the muscles supporting the knee, reducing stability and raising injury risk.

Other factors that contribute to meniscus damage include obesity, which places extra stress on the knees, and weak thigh muscles, which reduce shock absorption. Nutrition also makes a difference—getting enough vitamin D and calcium supports cartilage strength, while antioxidants and omega-3 fatty acids may help keep inflammation at bay. Molecular research adds new insights, showing that “SPHK1 and IRF7 were significantly downregulated in aging meniscal injury and predicted aging meniscal injury with high accuracy” (Yang et al., 2025), suggesting there’s more to learn about how our bodies’ biochemistry affects knee health.

Sex differences may also play a small role, with evidence of “a small association between degeneration and male sex, for both tissues” (Sjögren et al., 2025).

Prevention and Protection: Strategies for Healthy Menisci at Every Age

Protecting your meniscus requires a thoughtful, evidence-based approach. Strengthening the muscles around your knee with regular exercise helps keep the joint stable and resilient. Maintaining a healthy weight takes pressure off the knees. If you enjoy high-impact activities, consider modifying your routine or using protective gear to reduce injury risk.

Everyday joint care is just as important. Avoid staying in kneeling positions for too long, use ergonomic tools where you can, and always warm up your knees before exercise. Pay attention to any unusual or persistent knee discomfort—early symptoms such as pain, swelling, or locking should prompt a visit to your healthcare provider.

Expert orthopaedic advice is invaluable in managing meniscus health. Professionals such as Professor Paul Lee and the MSK Doctors team provide personalised care and support tailored to all ages. Excitingly, current research indicates that “SPHK1 and IRF7 drive inflammaging via sphingolipid-immune crosstalk and epigenetic silencing, offering diagnostic and therapeutic potential” (Yang et al., 2025). Furthermore, “Atf3+ senescent chondrocytes have been identified as a key driver of aging meniscus degeneration through the ANGPTL4 pathway” (Wang et al., 2025), suggesting new treatment avenues may soon be possible.

Bone Cement: Its Role in Trauma and Cancer Patient Care

Bone cement plays an important role in treating fractures, especially in serious injuries like neck of femur breaks or cases involving cancer. It stabilises implants and supports bone healing. While some clinics use uncemented implants successfully in certain patients, these techniques don’t directly affect meniscus care. British orthopaedic societies endorse current guidelines that promote the safety and efficacy of these approaches.

Conclusion

Ageing and lifestyle are key factors influencing meniscus health. Though degeneration naturally occurs over time, adopting simple, proven strategies—such as strengthening muscles, managing body weight, and protecting your joints—can help keep your knees strong and reduce injury risk. Paying attention to knee symptoms and seeking advice from experienced professionals like Professor Paul Lee and MSK Doctors can make all the difference. With proactive care and informed choices, you can maintain your meniscus health and enjoy mobility well into older age.

References

• Yang, S., Wang, H., Wang, L., Liu, L., Xu, P., Tian, X., & Chen, G. (2025). Epigenetic silencing of SPHK1-IRF7 axis drives inflammaging in age-related meniscus degeneration via sphingolipid-immune dysregulation. Journal of Orthopaedic Surgery and Research, 20, Article 6518. https://doi.org/10.1186/s13018-025-06518-0
• Sjögren, A., Bodahl, S., Hughes, V., Turkiewicz, A., Aspberg, A., Hellberg, I., Karjalainen, V.-P., Ali, N., Önnerfjord, P., & Englund, M. (2025). Histological analysis of age-related degeneration in human female and male knee cartilage and meniscus. Osteoarthritis and Cartilage Open, 100734. https://doi.org/10.1016/j.ocarto.2025.100734
• Wang, J., Liu, Y., Wang, X., Ma, M., Pan, Z., Fan, A., Lu, L., Liu, Z., Tao, K., & Yin, F. (2025). Atf3+ senescent chondrocytes mediate meniscus degeneration in aging. Arthritis Research & Therapy, 27, Article 3566. https://doi.org/10.1186/s13075-025-03566-z