Mobilization of the corpus spongiosum/urethral plate and the urethra in proximal hypospadias cases with greater than 30-degree ventral curvature after penile degloving decreases the need for urethral plate transection. Ventral lengthening to correct corporeal disproportion can be achieved by corporotomy with grafting or by multiple transverse incisions without grafting.
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Snodgrass et al. (2009) studied this question.
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