“…Until recently, the thinking was that reducing arthrogrypotic hips would result in stiff and painful hips, so at most only unilateral hips should be treated to allow for symmetry (Friedlander et al, ; Hansen, ; Huurman & Jacobsen, ; Lloyd‐Roberts & Lettin, ; Mead et al, ; Sarwark, MacEwen, & Scott, ; Williams, ). But a number of recent studies have good functional success after reduction of congenital dislocations in children with AMC (Bernstein, ; Bevan et al, ; Staheli et al, ; van Bosse et al, ; Wada et al, ), high rates of independent ambulation (Akazawa et al, ; Asif, Umer, Beg, & Umar, ; Rocha, Nishimori, Figueiredo, Grimm, & Cunha, ; Yau et al, ), and good results with both bilateral and unilateral hips (Gruel, Birch, Roach, & Herring, ; LeBel & Gallien, ; Szoke et al, ). A study comparing preoperative and follow‐up hip motion in both unilateral and bilateral hip dislocations, the flexion‐extension total active motion only decreased by 4° on average.…”