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The changes observed could modify the normal biomechanics of the lumbar spine, but the overall mechanical load on the spine is reduced by shifting weight onto the upper limbs. The imbalance that occurs between the activity of flexor and extensor muscles could cause lumbar pain in persons without proper physical preparation.

We report on three cases with congenital brachymetatarsia, one with bilateral affectation, together with the results of a lengthening of the short metatarsal bones by progressive axial distraction using an external minifixator. The method proved to be easy to implement, permitting immediate functionality of the ankle and early load bearing. The immediate results (cosmetic) and later findings (functional) were excellent in all three cases.

No abstract