Information in accordance with Section 5 TMG
Trieler Ring 94
Regulated / Independent Professions
Job title: Doctor
FOR DOCTORS – PART I Incidence One in 125 boys has hypospadias. In the United States a study reported that hypospadias was the most common congenital anomaly among whites. The incidence has been rising during the 1970s and 1980s. Classification Anatomic classification of hypospadias recognizes the level of the meatus without taking into account curvature. A more recent classification was described. This classification indicates the site of urethral meatus (before and after chordee correction), the prepuce (incomplete or complete), the glans (cleft, incomplete cleft or flat), the width of urethral plate, the degree of penile rotation if present and the presence of scrotal transposition (Fig. 1, 2). Using the general classification (Fig. 4), surgeons are able to conduct multi-centre studies to evaluate different techniques of repair. Fig. 1: Classifications of hypospadias, according to location of meatus into 4 grades Fig. 2 a – c: Classification of glans configuration in hypospadias. a. Cleft glans. There is a deep groove in the middle of the glans with proper clefting; the urethral plate is narrow and projects to the tip of the glans. b. (b) Incomplete cleft glans. There is a variable degree of glans split, a shallow glanular […]
FOR DOCTORS – PART II Fig. 5 Different tissues used for correction of hypospadias Although the penile repairs can be grouped into 8 major principles, depending on the tissues used, each has been subject to countless variations as one surgeon after another adds yet another modification to an already thrice-modified variation of a procedure adapted from a principle derived from the original. To correct hypospadias and achieve a terminal meatus, one may use one of the following basic principles or tissues: Urethral mobilisation a. Double Y Glanuloplasty (DYG) by Hadidi 2010. b.Urethral mobilisation first described by Beck and Hacker (1897). c. MAGPI described by Duckett (1981, midline vertical incision closed transversely and mobilization). d. M configuration by Arap (1984), a modification of MAGPI by placing two sutures on the ventral edge. e. UGPI modification of MAGPI by Harrison and Grobelaar (1997) by having a V-shaped incision around the original meatus, and having deep glanular wings before urethral advancement and upward rotation of the glanular wings. Skin distal to the meatus [A] Use of ventral skin distal to the meatus to reconstruct a completely epithelialized neo-urethra a. Lateral Baed Onlay Flap (LABO) by Hadidi 2012 b. U-shaped incision as first […]
FOR DOCTORS – PART III Fig. 6 a – d: Use of ventral skin distal to the meatus to reconstruct a partially epithelialised neourethra: (a) Duplay incomplete urethroplasty (1880); (b) Denis Browne technique (1949); (c) hinging of the urethral plate (Rich et al. 1989); (d) Snodgrass TIP urethroplasty (1994) [A] Combined use of prepuce and the skin distal to the meatus a. Lateral based flap (LAB) by Hadidi (2003, modified 2009). b. Lateral oblique flap from the side of the penis suggested by Hook (1896). c. One stage repair for proximal hypospadias by Broadbent (1961). d. Parameatal foreskin flap described by Koyanagi (1983). e. Yoke repair described by Snow (1994). [B] Scrotal skin (not recommended for fear of hairy urethra) […]
FOR DOCTORS – PART IV Grade II or Distal Hypospadias: “The Slit-like adjusted Mathieu (SLAM) Technique” The meatal-based flap technique of Mathieu is the most popular technique for distal hypospadias repair and has withstood the test of time. However, the major drawback of the original Mathieu technique is the final appearance of the meatus (a smiling meatus that is not very terminal). The Slit-like adjusted Mathieu (SLAM) helps to employ the Mathieu operation in all forms of distal hypospadias and gives a terminal, slit like meatus. This will include about 70 to 80 % of patients with hypospadias. The only contraindication is the presence of severe chordee distal to the hypospadiac meatus (very rare in distal hypospadias). Operative steps: The boundaries of the urethral plate are outlined. A U-shaped incision is outlined. The two parallel incisions at the glans region start along the true mucosal urethral plate to have large, wide glanular wings. At the distal end, the two incision converge as shown to have a slit-like meatus and to avoid having sutures at the meatus. The two lateral incisions diverge near the meatus to produce a wide flap. Fig 1b.: Flap mobilisation: Using a sharp scissors, the incision is deepened starting […]
Information about the Hypospadias-surgery
Information, meeting, treatment
Blog and information about Prof. Dr. Ahmed Hadidi
General knowledge and information about hypospadias.
Publications by Prof. Dr. Hadidi
Do you have any further questions about our range of services?