[The rafter osteotomy of the first metatarsal with immediate weight bearing in the treatment of anterior and medial pes cavus in adults].

The difficulty of the exact adjustment of the first metatarsal's raising by dorsal cuneiform cutting and osteosynthesis, brought the authors to prefer proximal rafter osteotomy of the first metatarsal in the treatment of adult's anterior and medial pes cavus. Early weight bearing with a plaster cast or a wooden-shoe allowed the spontaneous raising of the metatarsal and an equal distribution of load between all the metatarsals. The excellent results reached by that single procedure in nine cases during ten years justify to suggest it for treatment of adult's anterior and medial pes cavus.