Retrograde intrarenal surgery by flexible ureteroscope in patients with spinal deformities.

OBJECTIVE

To present our experience with retrograde intrarenal surgery (RIRS) for managing renal stones in patients with spinal deformities.

DESIGN

We retrospectively reviewed the records of patients.

METHODS

We retrospectively reviewed the records of seven patients with congenital scoliosis (n = 5), spina bifida (n = 2) who had undergone RIRS for renal stones. Stone-free status was determined by CT 30 days after the procedure and was defined as the absence of stones in the kidney or residual fragments ≤1 mm.

RESULTS

Mean patient age was 27 years (18-45 years), and mean stone size was 176 mm (143-340 mm). The average operative time was 38 minutes (25-53 minutes), and postoperative hospital stay was 1 day (1-2 days). A stone-free status was obtained in six (85.7 %) patients, and one patient was considered to have treatment failure. This patient was managed by a repeat RIRS. A Double-J stent was placed at the end of the procedure in all (100 %) patients. No severe complications, either from anesthesia or the surgical procedure, were observed, and no blood transfusion was reported.

CONCLUSIONS

The good clearance rate with a low incidence of complications shown by the present study has demonstrated that RIRS is a safe and effective procedure for renal stones in patients with spinal deformities.