TIP repair for proximal hypospadias is now rarely performed. Although it can repair hypospadias in a single surgery, high rates of problems such as recurrent curvature and strictures can occur. There are higher success rates when 2-stage graft (STAG) repairs are used in patients with hypospadias and penile curvature.
Tubularized incised plate proximal hypospadias repair: Continued evolution and extended applications.