Perineal Urethrostomy: Surgical and Functional Evaluation of Two Techniques

Table 1

Patient and stricture characteristics. Values are presented as mean ± standard deviation or number (%). For follow-up, the median value with interquartile range is provided because of unequal variances.

	Total ()	Johanson ()	Blandy ()	value
Follow-up (months)
Mean (± standard deviation)	36.3 ± 41.6	47.9 ± 45.5	11.1 ± 10.4	0.002^*
Median (interquartile range)	16 (8–48)	36 (11–75)	9 (6–13)	<0.001^*
Age (years)	60.1 ± 15.1	60.5 ± 14.7	59.2 ± 16.4	0.769°
Stricture length (cm)	8.6 ± 5.0	9.3 ± 5.0	7.1 ± 4.8	0.141°
Preop (mL/s)	3.1 ± 4.8	2.6 ± 3.1	3.9 ± 6.6	0.483°
Etiology
Idiopathic	8 (15.7%)	6 (17.1%)	2 (12.5%)
Iatrogenic	21 (41.2%)	17 (48.6%)	4 (25.0%)
Traumatic	5 (9.8%)	2 (5.7%)	3 (18.8%)	0.271
Inflammatory	7 (13.7%)	5 (14.3%)	2 (12.5%)
Urethrectomy	10 (19.6%)	5 (14.3%)	5 (31.2%)
Previous interventions
None	13 (25.5%)	8 (22.96%)	5 (31.2%)
DVIU/dilation	7 (13.7%)	7 (20.0%)	0 (0.0%)	0.074
Urethroplasty	31 (60.8%)	20 (57.1%)	11 (68.8%)
Location
Bulbar	12 (23.5%)	10 (28.6%)	2 (12.5%)
Penile	12 (23.5%)	7 (20.0%)	5 (31.2%)
Membranous	5 (9.8%)	1 (2.9%)	4 (25.0%)	0.053
Panurethral	22 (43.1%)	17 (48.6%)	5 (31.2%)
Suprapubic catheter
No	35 (68.6%)	24 (68.6%)	11 (68.8%)
Yes	16 (31.4%)	11 (31.4%)	5 (31.2%)	0.99^#

(^*Mann-Whitney test; °independent samples -test; Fisher’s exact test; ^#Chi-square test.)