When do you need to replace custom orthotics?
Sometimes your orthotics can be worn for 10 or 20 years. The hard materials should last indefinitely. The soft materials often need to be replaced yearly. If your orthotics are controlling your symptoms and fit in your shoes, then you do not need to replace them.
If you have a recurrence of your original symptoms or onset of new symptoms while wearing orthotics, you need to be assessed. Modifications to existing orthotics should usually be tried first before starting from scratch. Feet do change over time and this may cause discomfort and lead to the need to replace orthotics. People with progressive arthritis and old injuries usually need orthotics replaced every two to three years.