This group will not receive shoe lifts during the first 3 months after baseline. At 3 months, they will begin the shoe lift correction for leg length inequality.

At baseline, participants in this group will begin shoe lift correction for leg length inequality.

Lift therapy will be administered by a physical therapist. Heel lifts and full length inserts used inside participants' shoes will be constructed on-site. If an external shoe lift is required for a participant, a local shoe repair shop will construct the lifts and add them to the outside of the shoe. Participants will be required to wear the lift in their shoes when they are walking or standing while enrolled in the study; participants will keep a daily diary to record their compliance (number of hours lift worn per day, amount of lift used, type of shoes worn, general symptoms experienced, and activities performed). They will be contacted weekly to be reminded to increase their lift height and identify when they have achieved their optimal lift height.

Western Ontario and McMasters Universities Osteoarthritis Index pain subscale is a 5 item questionnaire that asks participants to rate their pain during walking, using stairs, in bed, sitting or lying, and standing. Each item is rated by the participant as 0-4 (no pain to extreme pain). Total scores on the pain subscale range from 0 to 20 (no pain to extreme pain).

For self-reported lower extremity physical function: Western Ontario and McMasters Universities Osteoarthritis Index physical function subscale. The physical function subscale includes 17 items that ask about difficulty with stair use, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy household duties, and light household duties. Participants rate each item on a scale of 0-4 (no difficulty to extreme difficulty. Totals scores for this subscale range from 0-68 (no difficulty to extreme difficulty).

This group will not receive shoe lifts during the first 3 months after baseline. At 3 months, they will begin the shoe lift correction for leg length inequality.

Shoe lift correction for leg length inequality: Lift therapy will be administered by a physical therapist. Heel lifts and full length inserts used inside participants' shoes will be constructed on-site. If an external shoe lift is required for a participant, a local shoe repair shop will construct the lifts and add them to the outside of the shoe. Participants will be required to wear the lift in their shoes when they are walking or standing while enrolled in the study; participants will keep a daily diary to record their compliance (number of hours lift worn per day, amount of lift used, type of shoes worn, general symptoms experienced, and activities performed). They will be contacted weekly to be reminded to increase their lift height and identify when they have achieved their optimal lift height.

Western Ontario and McMasters Universities Osteoarthritis Index pain subscale is a 5 item questionnaire that asks participants to rate their pain during walking, using stairs, in bed, sitting or lying, and standing. Each item is rated by the participant as 0-4 (no pain to extreme pain). Total scores on the pain subscale range from 0 to 20 (no pain to extreme pain).

This group will not receive shoe lifts during the first 3 months after baseline. At 3 months, they will begin the shoe lift correction for leg length inequality.

Shoe lift correction for leg length inequality: Lift therapy will be administered by a physical therapist. Heel lifts and full length inserts used inside participants' shoes will be constructed on-site. If an external shoe lift is required for a participant, a local shoe repair shop will construct the lifts and add them to the outside of the shoe. Participants will be required to wear the lift in their shoes when they are walking or standing while enrolled in the study; participants will keep a daily diary to record their compliance (number of hours lift worn per day, amount of lift used, type of shoes worn, general symptoms experienced, and activities performed). They will be contacted weekly to be reminded to increase their lift height and identify when they have achieved their optimal lift height.

Participant with redness of skin on big toe from pressure inside toe case of shoe with full length shoe lift. Symptom was relieved when full length shoe lift was changed to heel lift, allowing more space for the big toe in the toe case of the shoe.