Introduction

Osteoarthritis (OA) often develops after meniscectomy, which is the surgical removal of all or part of the meniscus in the knee. While this operation can relieve certain immediate issues, many patients continue to suffer from ongoing joint pain, swelling, and restricted movement. This is because the meniscus acts as a vital cushion that absorbs shock when we move. Without it, the knee is more vulnerable to wear and tear, which can speed up osteoarthritis. For those recovering from meniscal surgery, it’s important to know about advanced, evidence-based treatment options that can help preserve joint comfort and keep you moving.

The Challenges of Post-Meniscectomy Osteoarthritis

The meniscus plays a crucial role in knee health by spreading the weight through the joint and reducing stress on the cartilage. Removing meniscal tissue means the knee loses some of its natural shock absorption. This increases pressure and friction within the joint, which can lead to persistent aches, swelling, and reduced function. Research shows that “knee trauma may be the strongest risk factor for knee osteoarthritis (OA)” (Ericsson et al., 2009). Furthermore, magnetic resonance imaging (MRI) studies reveal that “the presence of bone marrow oedema on MRI for acute knee injury is strongly predictive for new onset or progression of degenerative change” (Ericsson et al., 2009). Many people find that standard OA treatments are not always enough to manage symptoms after meniscectomy. This highlights the need for treatments that address these specific biochemical changes and provide lasting relief.

Arthrosamid: A Novel Option for Symptomatic Relief

Arthrosamid is a polyacrylamide hydrogel injection designed to boost the joint’s cushioning and ease osteoarthritis symptoms. It essentially acts as a synthetic substitute, helping to replace some of the shock absorption lost when the meniscus is damaged. Research indicates Arthrosamid helps to spread forces more evenly over the knee cartilage, resulting in smoother, more comfortable movement. One recent 24-month study reported, “PAAG provided improvement in knee OA symptoms over 24 months, in older, non-diabetic patients with lower KL grades” (Gao et al., 2025). Another study explains that “the literature surrounding which patients would incur the most benefit from Arthrosamid is limited,” highlighting the importance of patient selection (Gao et al., 2025). While Arthrosamid is not a cure for osteoarthritis, it offers a promising option to ease symptoms, especially for those still struggling with pain after meniscectomy.

Expert Insights: Professor Paul Lee and the London Cartilage Clinic

Professor Paul Lee is a respected expert in cartilage and joint preservation, with years of experience treating complex cases of post-meniscectomy osteoarthritis. He serves as an ambassador for the Royal College of Surgeons of Edinburgh and advises several surgical societies, ensuring he stays at the forefront of research and practice. At the London Cartilage Clinic, Professor Lee and his team provide personalised, evidence-based care to help patients get the best possible results. Their approach includes carefully tailored assessments and advice on advanced treatments such as Arthrosamid. This patient-focused care helps individuals make well-informed decisions about their treatment options.

Considerations, Outcomes, and Informed Decision-Making

Choosing Arthrosamid involves weighing a number of factors such as the state of your knee, your activity level, and your overall health. It is important to remember that “the absence of a control group and limited outcome measures should be considered” when looking at current research (Gao et al., 2025). While many patients experience meaningful relief and improved function, results can vary and it’s essential to be realistic about what to expect. Rehabilitation and adapting your activities are also important parts of ensuring the best outcome. The best approach is to have detailed discussions with specialist healthcare professionals who can provide advice tailored to your unique situation. As always, for personalised medical advice, please consult a qualified healthcare provider.

References

• Gao, H. C. K., Akhtar, M., Creedon, C., Nar, Ö. O., Verma, T., & Lee, P. Y. F. (2025). Polyacrylamide hydrogel injections in knee osteoarthritis: A PROMs-based 24 month cohort study. Journal of Clinical Orthopaedics and Trauma. https://doi.org/10.1016/j.jcot.2025.103136
• Gao, H. C. K., Akhtar, M., Creedon, C., Nar, Ö. O., & Lee, P. Y. (2025). The impact of patient factors on the minimal clinically important difference of Arthrosamid polyacrylamide hydrogel injection for knee osteoarthritis: A cohort study. Osteoarthritis and Cartilage. https://doi.org/10.1016/j.joca.2025.02.648
• Ericsson, Y., Ringsberg, K., & Dahlberg, L. (2009). 290 Self-efficacy, physical activity and health-related quality of life in middle-aged post meniscectomy patients: A comparison to an age-matched control-group. Osteoarthritis and Cartilage, 17(Supplement 1), S290. https://doi.org/10.1016/S1063-4584(09)60312-5