Metatarsus adductus setting in adult patients: Results of a treatment algorithm with shortening arthrodesis tarsometatarsal joints two and three.

Background: This study proposes a treatment algorithm based on the correction of symptomatic metatarsus adductus (MA) associated with hallux abducto-valgo (HAV) through tarsometatarsal joint 2-3 (TMTJ) shortening arthrodesis. Our hypothesis is that the proposed algorithm leads to realignment of the forefoot rays from two to five and reduction of the talonavicular coverage angle (TNCA) with good clinical and radiographic results.

Methods: Clinical and radiographic evaluations were performed before and after surgery at 1-year follow-up on forty-six consecutive adult patients with MA, midfoot pain, HAV and osteoarthritis and/or instability of the TMTJ 2-3 in whom shortening of the 2nd and 3rd TMT joints according to MAA and treatment of the HV according to deformity was undertaken.