Arthritis in the big toe joint/MPJ
Another common problem that accompanies a leg-length discrepancy is arthritis in the Big Toe joint. A physician may prescribe a “Rocker Sole” to alleviate the discomfort of this condition. By using a 10 mm shoe lift at the heel, 10 mm at the ball and tapering to 0 at the toe (for a 12 mm leg-length discrepancy), the shoe has a forefoot rocker that rocks a bit like a rocking chair. It also retains a flat shape from the heel to the ball of the foot. This design supports a smooth transition of weight placement from the forefoot to toe off. Because it actually does the rocking motion for the foot, this modification drastically reduces the flexing of the foot and minimizes discomfort due to arthritis.
Achilles Tendon problems/Equines foot/Foot drop
A specially designed shoe modification can also address a leg-length discrepancy that’s aggravated with other conditions, including Achilles Tendon problems, Equines Foot, or Foot Drop. Using the 12 mm leg-length discrepancy as a beginning point, the medical professional can prescribe a lift with 10 mm at the heel, 0 at the ball, and 0 at the toe. This design elevates the heel to address the length discrepancy, but without lifting the forefoot. As a result, pressure is taken off the Achilles Tendon by keeping it in a shortened state. This modification especially benefits those who are diagnosed with Foot Drop. The thinner, lightweight design of the forefoot and midfoot decreases the risk of falling caused by dragging the forefoot.