Shoe for limb length discrepancy correction

1. A method for treating leg length discrepancy in a human patient, the method comprising:

using a shoe having (i) a shoe upper that holds a wearer's foot when worn; and (ii) a shoe sole connected to the shoe upper, the shoe sole having a collapsible section including a body at least partially defining a pocket in the collapsible section;

determining an amount of limb length correction needed for the patient;

selecting an insert having a thickness based on the amount of limb length correction needed; and

installing the insert into the pocket, thereby expanding the collapsible section and substantially correcting unequal limb length in the patient;

wherein (a) the body includes resilient material that allows the body to contract and secure the insert in the pocket and (b) the pocket and the insert extend from a heel end of the shoe to a toe end of the shoe.

2. The method of claim 1 , wherein the pocket extends from a heel end of the shoe to a toe end of the shoe.

3. The method of claim 1 , wherein the collapsible section includes an opening providing access to the pocket, the opening being sealable.

4. The method of claim 1 , wherein the insert extends from a heel end of the shoe to a toe end of the shoe.

5. The method of claim 1 , wherein the body is at least partially composed of a resilient material that can stretch to accommodate the thickness of the insert.

6. The method of claim 1 , wherein the collapsible section gives the shoe sole an adjustably variable thickness that depends on the thickness of the insert.

7. The method of claim 1 , wherein the shoe sole is a pre-existing shoe sole and the collapsible section is attached to the pre-existing shoe sole.

8. The method of claim 1 , wherein the insert is selectable from among a plurality of inserts having different vertical thickness.

9. The method of claim 1 , wherein the pocket includes a slip-resistant mechanism that secures the insert in place within the pocket.