Smith-Petersen medial approach to wrist. A, Medial curvilinear incision. B, Ulna osteotomized obliquely 2.5 cm proximal to styloid process. C, Distal ulna resected and periosteum of radius incised. D, Radiocarpal joint exposed by reflection of capsule and ligaments from carpus and distal end of radius. SEE TECHNIQUE 1.126.