An ACL injury is a tear or sprain of the anterior cruciate ligament (ACL) — one of the major ligaments in the knee. An ACL injury is most likely to occur during high impact sports that involve sudden changes in direction (like tennis, football), sudden stops (like cricket),  jumping and landing (basketball, tennis, badminton, volleyball, football, squash). The individual may feel or hear a ‘pop’ in the knee when the ACL injury happens. A severe ACL injury is debilitating and renders the patient incapable of continuing with the activity as bearing weight on the affected knee becomes extremely painful. The knee may also experience swelling, instability and stiffness. 

Insoles can help during recovery from ACL injuries by providing support the knee by stabilizing the foot. If the foot tends to over pronate or over supinate, this abnormal gait adds more pressure to the knee while the patient is walking. Insoles can help control abnormal foot movements and keep the foot and knee in alignment while in weight bearing.