Rotational osteotomy for hallux valgus. A, Candlewax model showing deformity before osteotomy. B, Model showing osteotomy cut. C, Model after rotating the distal part. D, Bone model after correction through metatarsal external rotation. Note how lines A and B match on dorsum of metatarsal. 3, Kirschner wire, which is used for osteotomy fixation.