Pain in the knee, hip, or lower back is often linked to foot alignment. When the foot does not function properly, the entire biomechanical chain can be affected. This patient case shows how personalized 3D-printed insoles can quickly improve comfort, stability and overall movement.
When an active athlete faces persistent pain
Pain in the knee, hip, and lower back is often linked to foot alignment issues. For athletes, even minor imbalances can affect performance and lead to fatigue or injuries. Nicolas Le Roux, an active athlete, had been dealing with persistent pes anserinus tendinitis, early knee osteoarthritis and a meniscus fissure in his right knee. These issues made him constantly put weight on the outer edge of his foot and rely more on his left leg, which caused lower back discomfort and fatigue, as well as reduced stability during sports.
A fully personalized digital approach
In complex cases like this, effective treatment requires a precise and individualized approach. Arkad was developed to help podiatrists create fully personalized 3D-printed insoles, starting from a 3D foot scan with Arkad Scan. Each insole is digitally adjusted with Arkad Soft, precisely 3D-printed with Arkad Printer and designed to guide the foot into a natural, efficient alignment while respecting the patient’s movement patterns. This approach ensures that athletes can maintain performance while reducing stress on vulnerable joints.
An athlete’s feedback after two weeks using Arkad insoles
After only two weeks of using Arkad insoles, Nicolas noticed a clear difference. The insoles allowed his right foot to naturally realign inward, which relieved pain in the knee and hip. He also noticed that when walking barefoot, his foot naturally stayed in the correct position, showing that he didn’t have to be constantly dependent on the insoles.
During sports sessions, he felt more grounded on the floor and his right leg was much more active. He experienced better stability in his weightlifting training, a more balanced push between both legs and a stronger engagement of his posterior chain, where he previously had significant deficits.
“Just 2 weeks with Arkad’s 3D-printed insoles and the difference is clear.” – Nicolas Le Roux
This case demonstrates how personalized 3D-printed insoles can do more than relieve pain. They restore balance, control and confidence in movement. By combining digital precision with clinical expertise, Arkad empowers podiatrists to deliver solutions that make a real difference for active patients, step by step.
