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Related to perineal nerve: Pelvic splanchnic nerves, pudendal nerve
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Neurolysis is performed along each of the nerve's branches - the inferior rectal nerve, the perineal nerve, and the dorsal clitoral nerve - until the nerve is completely free.
5,8) The perineal nerve supplies motor innervations to the pelvic floor muscles (transverse perineal muscles, bulbospongiosus, ischiocavernosus, sphincter urethra and the levator ani muscles).
This caused compartment syndrome, as well as injury to motor and sensory femoral nerves and sciatic nerve involvement of the superficial perineal nerve.