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Also known as
Perineal access, Perineal route, Transperineal approach, Perineal surgical approach, Belt's approach (specific technique)
Definition
The perineal approach is a surgical route that provides access to urological structures through an incision in the perineum, the area of skin between the scrotum and anus in males.1 This approach allows direct access to the bulbar or membranous urethra, prostate gland, and other lower urinary tract structures without entering the abdominal cavity.2 It is characterized by a small incision, excellent exposure of the target anatomy, and avoidance of major blood vessels and muscle groups.3 The perineal approach is utilized in various urological procedures including radical perineal prostatectomy, perineal urethrostomy, and repair of urethral strictures.4
Clinical Context
The perineal approach is clinically indicated in several urological conditions and procedures. In prostate cancer treatment, radical perineal prostatectomy provides an alternative to retropubic or robotic approaches, particularly beneficial for patients with prior abdominal surgeries, obesity, or when pelvic lymphadenectomy is not required.1
For urethral strictures, especially those involving the bulbar or membranous urethra, the perineal approach offers excellent exposure for reconstruction.3 Perineal urethrostomy is performed in cases of complex or recurrent urethral strictures, after penectomy, or when other reconstructive procedures have failed.4
Patient selection criteria include consideration of body habitus, prior surgical history, and specific anatomical considerations. The perineal approach is contraindicated in patients with severe limitation of hip rotation.1
Surgical procedures utilizing this approach typically involve placing the patient in an exaggerated lithotomy position with the perineum parallel to the floor. A median or curved incision is made in the perineum, followed by careful dissection through subcutaneous tissues and division of the central tendon while protecting the rectum.2 The bulbospongiosus muscle is divided in the midline to expose deeper structures.3
Expected outcomes include shorter hospital stays, reduced blood loss compared to retropubic approaches, and equivalent oncological and functional results in prostatectomy cases.2 Recovery typically involves catheterization for 7-14 days and gradual return to normal activities.4