Dorsal lumbotomy incision for pediatric pyeloplasty--a good alternative.

This study reviews the value and benefits of the dorsal lumbotomy incision (DL) for exposure of the pelviureteric junction (PUJ) in infantile and paediatric pyeloplasty. Ninety-one children underwent pyeloplasty for confirmed PUJ obstruction between January 1993 and December 1997. The conventional loin incision (CL) (n = 60) was used as the standard, to which DL (n = 31) was compared. Information on the duration of surgery, length of hospital stay, length of time to return to full oral intake, and complications was obtained retrospectively from the hospital chart. The results were analysed using a non-parametrical statistical analysis. Follow-up was between 6 months and 5 years (median 2.4 years). The median age at surgery was 1.5 years (1 month-14 years). The median operating time was similar in both groups (95 min). The median length of stay was 3 days for the DL group compared to 7 days for the CL group (P < 0.001). The length of hospital stay had no correlation to the patient's age at surgery or the type of postoperative analgesia used. The median time to return to full oral intake and unrestricted activity in the DL group was 43 h compared to 83 h for the CL group (P < 0.001). The surgeons found that there was better exposure of the PUJ in infants in the DL group compared to the DL incision. There were no operative complications related to the DL itself. At the time of last follow-up 3 children required re-operation for a failed pyeloplasty, 2 in the DL group. The results suggest that DL is a safe and reasonable alternative to CL in paediatric pyeloplasty and probably the incision of choice in infantile pyeloplasty.