Final answer:
The surgical repair of the renal pelvis is referred to as pyeloplasty, a procedure that corrects any obstructions or structural irregularities in the renal pelvis.
Step-by-step explanation:
Surgical repair of the renal pelvis is called pyeloplasty. The term 'pyelo' refers to the renal pelvis and 'plasty' means surgical repair. The renal pelvis is the funnel-like end of the ureter where it enters the kidney and where urine collects before being transported through the ureter to the bladder. During pyeloplasty, any blockages or structural abnormalities that impede normal urine flow are corrected to prevent complications such as urinary tract infections (UTIs) or kidney damage.