Introduction

Knee osteoarthritis is a widespread condition that often affects people over the age of 65. It can make walking uncomfortable and daily activities challenging. Among the treatment options available, two stand out: internal cushioning treatments like Arthrosamid®, which work inside the knee joint, and external supports such as knee braces, which provide stability from outside the body. This article aims to explain these approaches clearly, focusing on how they impact walking comfort and everyday ease for older adults.

How Arthrosamid Works Inside the Joint

Arthrosamid® is a special gel injected directly into the knee joint. Made from polyacrylamide hydrogel, it acts like a cushion inside the joint, lubricating the space between bones and helping to reduce friction. This can ease movement and relieve pain, making walking smoother and less uncomfortable.

Research into Arthrosamid is ongoing, but early findings show promise. One study explains that the evidence on which patients benefit most is still emerging, highlighting the importance of personalised treatment plans. For many older adults, Arthrosamid offers a low-maintenance way to manage knee pain because, once injected, it works quietly within the joint without the need for daily adjustments or visible aids. This can be a great advantage for those who want to maintain independence and comfort with minimal fuss.

External Bracing and Supports: An Accessible Option

External knee braces and supports are worn over the knee to provide mechanical stability. They help by keeping the knee aligned correctly during movement, reducing strain on damaged areas. Such braces are commonly used and readily available, offering a practical tool to manage knee osteoarthritis.

Interestingly, research on external bracing in other medical contexts supports its usefulness in older adults. For example, a study on back brace support belts found the devices helpful in reducing discomfort and improving performance in elderly patients. While this study was focused on colonoscopy procedures, it demonstrates that well-designed external supports can aid older individuals in various ways.

That said, wearing braces does require some daily effort. They need to be put on and taken off regularly and can feel bulky or restrictive, which might affect clothing choices and overall comfort. For some, the appearance or inconvenience of braces might make them less appealing for day-to-day use.

Comparing Walking Comfort and Natural Movement

When it comes to walking comfort, Arthrosamid’s internal cushioning can make a significant difference by reducing friction inside the joint, which many people find makes their steps feel smoother and less painful. In contrast, external braces work by physically supporting the knee from the outside, which can stabilise the joint but sometimes feels limiting or uncomfortable, especially after prolonged use.

Another key consideration is posture neutrality—how naturally you can move without your balance or gait being affected. Internal treatments like Arthrosamid tend to preserve natural joint movement without imposing external constraints. Braces, while helpful for stability, may alter your walking pattern or posture due to their support structure. This is particularly important for older adults who want to maintain good balance and reduce the risk of falls.

Practicality and Daily Freedom

From a practical standpoint, Arthrosamid injections require visits to a clinic but little to no maintenance once administered. This means that users can enjoy pain relief and greater ease of movement without having to manage external devices daily. Many older adults appreciate the freedom this provides, including less impact on their clothing choices and daily routines.

On the other hand, external braces require regular use and upkeep, including putting them on, ensuring a proper fit, cleaning, and sometimes replacements. Their visible nature can influence what you wear, and they may feel cumbersome for those used to more minimal intervention.

Why Expert Advice Matters

Choosing the best treatment for knee osteoarthritis is not one-size-fits-all. Professor Paul Lee, an expert in orthopaedics and rehabilitation at MSK Doctors, emphasises the importance of personalised care. Having a thorough assessment by a knowledgeable healthcare professional can help find the approach that best suits your lifestyle, medical history, and comfort needs—whether that’s Arthrosamid, external bracing, or a combination of therapies.

Conclusion

In summary, Arthrosamid and external bracing represent two different but valuable ways to tackle knee osteoarthritis in older adults. Arthrosamid works quietly inside the joint to improve walking comfort with minimal fuss, while braces offer external support that can stabilise the knee but might affect posture and daily comfort. Understanding these differences and seeking expert guidance can help you make informed choices that support your mobility and quality of life. For personalised medical advice, always consult a qualified healthcare professional.

References

Toyoshima, O., Nishizawa, T., Sakitani, K., Yamakawa, T., Yoshida, S., Fukagawa, K., Hata, K., Ishihara, S., & Suzuki, H. (2019). Colonoscopy using back brace support belt: A randomized, prospective trial. JGH Open, 4(3), 441-445. https://doi.org/10.1002/jgh3.12276
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. Journal of Osteoarthritis and Cartilage. https://doi.org/10.1016/j.joca.2025.02.648