Final answer:
Orchiopexy is a surgical fixation of the testis in the scrotal sac. It is used to treat cryptorchidism, a condition where the testicles do not descend into the scrotum.
Step-by-step explanation:
A surgical fixation of the testis in the scrotal sac is known as Orchiopexy. It is a procedure used to treat a condition called cryptorchidism, where one or both testicles fail to descend into the scrotum. During orchiopexy, the surgeon places the testis into the scrotal sac and secures it in place to prevent it from retracting.