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Background Confocal laser endomicroscopy (CLE) is an optical device that aims to image histological architecture and may be used to reduce positive surgical margins. The ability of CLE to describe prostatic and periprostatic tissues, and prostate cancer (PCa) is still an object of investigation. Objective To create an atlas of ex vivo CLE images of prostatic and periprostatic tissues, and PCa in order to recognise different prostatic structures. Design, setting, and participants From November 2017 to February 2018, 15 patients underwent radical prostatectomy for biopsy-proven PCa. Outcome measurements and statistical analysis Based on preoperative data and macroscopic examination, tumour location was assessed and confirmed on frozen sections. Prior to ex vivo CLE analysis, prostates were stained with fluorescein 10%. We used a GastroFlex probe to collect images of periprostatic tissue (adipose tissue, fibrous and connective tissues, vessels, nerve sheets, seminal vesicles, and urethra). Normal prostatic glands and tumour tissue according to the Gleason grade were analysed. Each PCa Gleason score was represented. Results and limitations A total of 139 video clips and 237 pictures of prostatic and periprostatic tissues were collected. Among them, we selected 16 highly representative images. Adipose tissue, fibrous tissue, and connective tissue were supposable in all 15 specimens. PCa glands captured fluorescein in their cytoplasm, normal prostatic glands did not capture fluorescein, and glandular structures were easily recognisable. The principal limitation of this study is its ex vivo nature of the study. Conclusions Each CLE image was correlated with the corresponding haematoxylin/eosin/saffron definitive pathology image, allowing building of an atlas as a necessary tool to assess the diagnostic performance of CLE during radical prostatectomy in achieving negative surgical margins. Patient summary In this study, we aim to provide an atlas of images illustrating prostatic, periprostatic, and PCa tissues obtained using Cellvizio confocal laser endomicroscopy as a tool for further interpretation of intraoperative surgical margins during radical prostatectomy.

Since April 201, we have introduced PET/CT using a ligand of prostate-specific membrane antigen labeled with gallium-68 (PSMA-11). We aimed to evaluate its positivity rate and impact in patients presenting biochemical recurrence of prostate cancer whosePatients were prospectively included between April and December 2016. PET/CT was performed 60min after injection of 2MBq/kg of body mass ofThirty-three patients were included. The mean PSA serum level measured on the month of the PSMA-11 PET/CT was 2,8ng/mL. Twenty-five (76%) PSMA-11 PET/CT were positive, 7 (21%) negative and 1 (3%) equivocal. Of 11 patients whose FCH PET/CT showed equivocal foci, PSMA-11 PET/CT confirmed those foci in 5 cases. Follow-up was available for 18 patients (55%). PSMA-11 PET/CT results led to a change in management in 12 patients (67%).5.

Loss of heterozygosity (LOH) is the most consistent genetic alteration in prostate cancer (CaP), frequently associated with advanced cancer and metastasis. We performed LOH analysis on 6 chromosomal regions of interest in localized CaP to obtain an overview of allelic losses in organ confined tumors and test the association with the usual prognostic factors.Tumoral and normal DNA were extracted from 48 radical prostatectomy specimens (all organ confined) with a Gleason score of 5 to 7. Biological and pathological data, such as prostate specific antigen (PSA), Gleason score and perineural invasion (PNI), were correlated with allelic losses at 7q31, 8p22, 12p13, 13q14, 16q23.2 and 18q21. Analysis was done by genotyping using highly informative microsatellites markers.The rate of LOH was 25% for chromosomes 13 and 18, and between 40% and 47% for chromosomes 7, 8, 12 and 16. The mean frequency of overall LOH events was less than 34%. Except for the 12p13 and 16q23.2 loci no significant correlation was found between LOH and PSA or Gleason score. PNI was significantly associated with LOH on 8p22 (p = 0.003) and with a high frequency of LOH events (greater than 34%) (p = 0.02).The frequency of allelic losses in localized and differentiated CaP is associated with PNI but not with the usual prognostic markers, such as PSA and Gleason score. The relationship between LOH on 8p22 and PNI suggests the presence on this region of a gene involved in epithelium/nerve interaction.

We performed a prospective oncological evaluation of laparoscopic radical prostatectomy in regard to local tumor control and biochemical recurrence.Between January 1998 and March 2002, 1,000 consecutive patients with a mean age +/- SD of 63 +/- 6.2 years and clinically localized prostate cancer underwent laparoscopic radical prostatectomy at 1 institution. Preoperative 1997 TNM clinical stage was T1a in 6 patients (0.6%), T1b in 3 (0.3%), T1c in 660 (66.5%), T2a in 304 (30.4%) and T2b in 27 (2.7%). Mean preoperative prostate specific antigen (PSA) +/- SD was 10 +/- 6.1 ng./ml. (range 1.5 to 55). Postoperatively, surgical specimens were assessed and positive surgical margins recorded. Factors that could influence the surgical margins status were evaluated. Irrespective of pathological stage or surgical margin status, no adjuvant treatment was proposed before an increasing PSA. PSA recurrence was defined as PSA greater than 0.1 ng./ml. and was confirmed by a second increase. Recurrence time was defined as the time of the first increase in PSA.Postoperative pathological stage was pT2aN0/Nx in 203 patients (20.3%), pT2bN0/Nx in 572 (57.2%), pT3aN0/Nx in 142 (14.2%), pT3bN0/Nx in 77 (7.7%) and pT1-3 N1 in 6 (0.6%). Positive surgical margin rate was 6.9%, 18.6%, 30% and 34% for pathological stages pT2a, pT2b, pT3a and pT3b, respectively (p0.001). The main predictors of a positive surgical margin were preoperative PSA (p0.001), clinical stage (p = 0.001), pathological stage (p0.001) and Gleason score (p = 0.003). The overall actuarial biochemical progression-free survival rate was 90.5% at 3 years. According to the pathological stage, the progression-free survival rate was 91.8% for pT2aN0/Nx, 88% for pT2bN0/Nx, 77% for pT3aN0/Nx, 44% for pT3bN0/Nx and 50% for pT1-3N1 (p0.001). Of the patients 94% with negative surgical margins and 80% with positive margins had progression-free survival (p0.001). Preservation of the neurovascular bundles in patients with localized tumors had no significant effect on the subsequent risk of positive surgical margins or progression-free survival.Based on followup, our evaluation confirms that laparoscopic radical prostatectomy provides satisfactory results in regard to local tumor control and biochemical recurrence.

Objectives : The aim of this study is to compare the initial experience at two different urologic centers of the 20 first laparoscopic nephrectomies performed either by transperitoneal laparoscopy (10 cases) in one center or by retroperitoneal laparoscopy (lumboscopy, 10 cases) in the other center. Methods: 5 males and 15 females with a mean age of 36 years (range 3-74) were operated on the right side in 8 cases and on the left side in 12 cases. Nephrectomies were indicated in 18 cases for benign renal disease, and in 2 cases for ureteric tumor (1 patient in each group). The techniques of these two approaches are described. Results : The mean operating time was shorter with lumboscopy (173 min) than with laparoscopy (210 min), probably due to the direct approach to the renal compartment without intraperitoneal dissection with lumboscopy. There were no severe intraoperative or postoperative complications, but one hematoma of the renal area in the laparoscopic group. The mean postoperative hospital stay was identical following lumboscopy and laparoscopy (4.3 and 4.2 days, respectively). Conclusion : These two approaches can be used to perform nephrectomy. In this initial experience, the results appear to be equivalent in terms of morbidity and postoperative hospital stay, but the operating time appears to be shorter with lumboscopy. Larger studies comparing respective nephrectomy conversion rates would provide other arguments in favor of one or other of these techniques.

The objective of the cavernous nerve preservation is to avoid injury of the unmyelinated nerve fibers and arteries destined to the corpora cavernosa. Dissection anatomical plans could be inter or extra fascial allowing complete or partial neurovascular bundle preservation. The technique is chosen according to the carcinological evaluated risk and anatomical characteristics. Accessory pudendal arteries preservation must be performed when such an artery is identified in order to improve the chance of recovery of spontaneous erections.

We outline the structure of the clinical and training program of laparoscopic urologic oncology at Memorial Sloan-Kettering Cancer Center. We discuss the steps and key elements necessary in acquiring lapa roscopic proficiency.The program lasts 2 years and trains fellows and faculty. For fellows, the program consists of a 6 months high volume laparoscopic oncology rotation, during which dry lab, animal lab, vide review and operating room experience are required. For faculty, the program consists of 1 accredited continuin medical education course, 20 hours of dry lab, 1 session animal lab, observation of laparoscopic cases, first assistant in a minimum of 15 laparoscopic cases, performing laparoscopic cases under mentoring.8 fellows have completed the training, 4 of whom have completed their fellowship and are in academic centers, performing advanced laparoscopy. The laparoscopic approach represents on average 80% of their urologic practice. Three attendings are performing laparoscopic surgery with mentoring.The goals of a surgical education program should be the standardization of the acquisition o surgical skills and assessment of the performance in a uniform setting to ensure the maintenance of the acquisition of skills and to develop programs to teach new skills.

The late 1990s witnessed an unprecedented evolution in the surgical approaches to the prostate thru the eye of the laparoscope. Initially taken with doubt, laparoscopic radical prostatectomy (LRP) has gained tremendous popularity and widespread implementation at specialized centers worldwide becoming the standard in many of them. LRP represents a technically demanding laparoscopic procedure but it can be performed systematically with standard techniques. Obvious advantages are shorter convalescence and markedly lower operative blood loss without compromise of cancer control. Long-term functional and oncological results are maturing but early reports of positive surgical margin rates and freedom from prostate-specific antigen (PSA) recurrence rates after LRP are encouraging. Early quality of life results of postoperative urinary and sexual function appear similar to those in open surgical series. The real challenge for laparoscopic surgeons entails a paradigm swift, one that breaks off from the traditional and bias impetus, and tests the instruments, procedures, techniques differences and evaluates outcomes in a prospective controlled and randomized manner. If achieved, the laparoscopic movement may give rise to a generation of forward thinking surgeons generating a wealth of clinical evidence for their patients.

We performed a nonrandomized retrospective comparison of 2 techniques for laparoscopic partial nephrectomy, that is without and with clamping the renal vessels.Between December 1997 and February 2002, 28 consecutive patients underwent transperitoneal laparoscopic partial nephrectomy for renal tumor. In group 1 (12 patients) partial nephrectomy was performed with ultrasonic shears and bipolar cautery without clamping the renal vessels, while in group 2 (16 patients) the renal pedicle was clamped before tumor excision. In group 2 patients intracorporeal kidney cooling was achieved by a ureteral catheter connected to 4C solution. Intracorporeal freehand suturing techniques were used to close the collecting system when opened and approximate the renal parenchyma.All procedures were successfully completed laparoscopically. Mean renal ischemia time +/- SD was 27.3 +/- 7 minutes (range 15 to 47) in group 2 patients. Mean laparoscopic operating time was 179.1 +/- 86 minutes (range 90 to 390) in group 1 compared with 121.5 +/- 37 minutes (range 60 to 210) in group 2 (p = 0.004). Mean intraoperative blood loss was significantly higher in group 1 than in group 2 (708.3 +/- 569 versus 270.3 +/- 281 ml., p = 0.014). Three patients in group 1 and 2 in group 2 required blood transfusions. Immediately postoperatively mean creatinine was 1.26 +/- 0.36 and 1.45 +/- 0.61 mg./dl. in groups 1 and 2, respectively (p = 0.075). Surgical margins were negative in all specimens. Pathological examination revealed renal cell cancer in 18 cases (stages pT1 in 17 and pT3a in 1), oncocytoma in 4, angiomyolipoma in 5 and renal adenoma in 1.Laparoscopic partial nephrectomy represents a feasible option for patients with small renal masses. Clamping the renal vessels during tumor resection and suturing the kidney mimics the open technique and seems to be associated with less blood loss and shorter laparoscopic operative time.

To propose a scoring system of difficulties for the most currently performed laparoscopic procedures in urology.Each current laparoscopic procedure has been evaluated according to three different criteria: technical difficulty, operative risk and the attention required. Each criterion is scored from 1 (minimal impact of the criteria) to 7 (maximal impact of the criteria). The sum of the 3 criteria is used to classify each operation according to an increasing level of global difficulty, classified into 6 levels: easy (E: sum of criteria between 3 and 5), slightly difficult (SD: sum of criteria between 6 and 8), fairly difficult (FD: sum of criteria between 9 and 11), difficult (D: sum of criteria between 12 and 14), very difficult (VD: sum of criteria between 15 and 17), extremely difficult (ED: sum of criteria greater than 18).Procedures currently performed by laparoscopy have been selected for evaluation according to the above criteria, and retrospectively validated by European experts in laparoscopic urology according to their experience and the international literature.This proposal of a scoring scale system is a basis for discussion, teaching and learning of urological laparoscopy. By necessity, this scale is evolving and will be regularly reconsidered and updated every 5 years.

To retrospectively evaluate the morbidity of radical prostatectomy, with the exception of sexual complications, based on a recent single-centre series.From January 1996 to January 1998, the morbidity of 100 consecutive patients undergoing radical retropubic prostatectomy was compared to the morbidity of the first 150 patients operated by the same technique in our department for the period 1983-1993. The perioperative morbidity was studied retrospectively on case files, while continence was evaluated in the last 50 patients by a self-administered questionnaire. Sexual complications could not be evaluated objectively for methodological reasons and were not addressed in this study.The single operative complication was a rectal injury (1%). The transfusion rate was 31%. The early complication rate was 23% with a major complication rate of 5% (four thromboembolic complications and one gastrointestinal haemorrhage). The most frequent minor complications (18%) were wound abscess (5%). The reoperation rate was 3%. The mean duration of vesical catheterization was 7 days (range: 4-30) and the mean hospital stay was 8 days (range: 5-30). With a mean follow-up of 14 months, 73% of patients are perfectly continent, with no incontinence pads, while 15% of the patients required incontinence pads "as a precaution". Incontinence required implantation of an artificial sphincter in 2 patients (2%). Only one patient developed stenosis of the anastomosis requiring internal urethrotomy. The reduction of morbidity in these 100 recently operated patients compared to the first 150 operated patients concerned the transfusion rate (31% versus 65%), the reoperation rate (3% versus 8%) and the minor complication rate (18% versus 32%). The reduction of operative morbidity partly explains the reduction of mean duration of vesical catheterization (7 days versus 15 days), and hospital stay (8 days versus 18 days); the anastomotic stenosis rate was also decreased from 17.3% to 1%.This study confirms the reduction of overall morbidity of retropubic radical prostatectomy. This improvement is probably multifactorial: increased operative experience and better postoperative management. These retrospective data must be taken into account in the diagnostic and therapeutic decisions concerning localized prostate cancer.

Evaluate the technical feasibility of laparoscopic radical prostatectomy, its carcinological efficacy and per- and post-operative morbidity.We performed radical prostatectomy using a new laparoscopic technique in 28 patients between February 1 and August 31, 1998.Radical prostatectomy was achieved totally by a laparoscopic approach in 24 patients (86%). No conversion was required in the last 14 patients. In 9 patients (32%) ilio-obturator node resection was also performed as indicated by preoperative extension work-up. Mean operative time was 270 minutes. The only major complication was one rectal wound (patient n degree 8) which had a benign course after suturing under laparoscopy. The bladder catheter was removed a mean 7.7 days after the procedure. Five patients (18%) required transfusions (mean 2.7 units, range 2-3). Rapid discharge on day 3 was possible due to rapid pain relief postoperatively. Tumor classes were pT2 in 26 patients, NO in 9, NX in 17. The surgical border was doubtful at the apex in one case. The last prostate specific antigen assay was below detectable levels (0.1 ng/ml) in 16 patients (89%) among the 18 with levels know prior to the procedure. Continence was assessable in 20 patients after a 1 to 6 month follow-up. Continence was perfect in 18 patients and becoming so in 12. Sexual activity was not assessed in this series due to the short follow-up.Radical prostatectomy can be reasonably performed as a routine laparoscopic procedure by a well-trained team. The cancerological results in this series were equivalent to those with conventional retropubic surgery and morbidity was very low. Improved operative vision was considerable, allowing much more precise dissection. The laparoscopic technique appears to be an important improvement for radical prostatectomy and should help improve functional outcome.

The prognostic significance of seminal vesicle invasion on the radical prostatectomy specimen was evaluated according to the proximal or distal site of this invasion.52 consecutive patients undergoing radical prostatectomy for stage pT3b N0 M0 prostatic cancer were classified into two groups: group A (18 patients): patients with invasion limited to the proximal part of the seminal vesicles (stage T3b limited); group B (34 patients): patients with invasion extending to the free part of the seminal vesicles (stage T3b extensive). The PSA progression-free curves were compared between the two groups. A multivariable regression model was performed to determine independent prognostic factors.Overall, the 5-year PSA progression free rate of the 52 patients was 14.4%. The 5-year PSA progression-free rate of the patients in group A was 45.4 vs. 4.2% at 4 years in group B (p = 0.0004). The stage of seminal vesicle invasion and the Gleason score were the only independent predictive factors of PSA progression (p = 0.02 and p = 0.04, respectively).The prognostic significance of seminal vesicle invasion is not constant and depends on the site of invasion. Preoperative seminal vesicles biopsies can select patients with invasion extending to the free part of seminal vesicles and who have a poor prognosis in terms of PSA progression after radical prostatectomy.

To allow the diagnosis of pathological stage C prostatic cancer before deciding on treatment.Seminal vesicle biopsy was performed as an outpatient procedure without anaesthesia. An identical antibiotic prophylaxis to that used for prostatic biopsy was performed. Biopsies were performed by longitudinal vision using a transrectal probe. A seminal vesicle needle biopsy was performed lateral to the prostate in the medial third of the seminal vesicle.When seminal vesicle biopsies are positive, the final pathology report after radical prostatectomy confirmed the diagnosis in 100% of cases. When seminal vesicle biopsies were negative, seminal vesicle invasion was detected on the final pathology examination in one third of cases, mostly corresponding to exclusively intraprostatic involvement of the seminal vesicle. Biopsies are useful when at least one of the two prostatic bases is involved. In the series of the last 42 radical prostatectomies performed because of negative seminal vesicle biopsies, we detected only 11% of capsular lesions, almost always less than 1 mm, and 0% of ilio-obturator lymph node invasion.Although the digital rectal examination findings, the PSA level, the Gleason score, and the number of positive biopsies and their length, allow an approach to preoperative staging, only seminal vesicle biopsies can provide a better preoperative staging of prostatic cancer for a given patient and no longer just statistically.

The advent of extra-corporal shock-wave lithotripsy in the eighties totally changed management strategies for renal and ureteral lithiasis of the upper urinary tract. Currently, approximately 80% of all patients can benefit from lithotripsy with an overall success rate of about 75%. Although classical surgery has a higher success rate of about 90%, extra-corporal shock-wave lithotripsy has many advantages. First there is a very low risk of morbidity (pain, immobilization, complications) for this outpatient treatment. Second, the overall cost, including that of preventive treatment, is low as illustrated by the major reduction in the number of cases of pyonephritis on stones and of corraliform lithiasis. The apparent safety of shock-wave therapy should not mask the risk of unacceptable indications: small stones which may resolve spontaneously or inversely very large stones carrying the risk of residual fragments and renal damage. Long-term morbidity remains to be evaluated, but the management of upper urinary tract lithiasis now relies heavily on shock-wave therapy alongside conventional surgery and percutaneous or endoscopic methods.

The authors report their experience of the first 10 patients operated by upper urinary tract lumboscopic surgery. Lumboscopy is performed in the lateral supine position and a simple technique for creation of retropneumoritoneum is described. In 4 patients, the planned nephrectomy could be performed because of poor anatomical conditions (peripyelitis and/or perinephritis). Lumboscopy allowed complete renal exploration, two nephrectomies, two resections of the roofs of compressive parapelvic cysts and one lumbar ureterolithotomy. The ease and rapidity of lumboscopic dissection makes it a valuable alternative to laparoscopy.

45 patients were included in a retrospective study designed to assess the long-term efficacy and tolerance of immunotherapy by intravesical BCG instillation in the treatment of stage pTa bladder tumours (mean follow-up 52.7 months, range: 12-87 months). 41 patients (91% responded to immunotherapy: 24 (53%) did not develop anu recurrences with a mean follow-up of 49.4 months (range: 19-87 months) and 17 (37.7%) were improved by treatment as the interval between recurrences was significantly increased. 4 patients (8.8%) failed to respond to BCG therapy with progression to stage pTa G3 vesical papillomatosis in one patient. The local tolerance was poor for twelve patients (26.6%), requiring discontinuation or spacing of the instillations. Other complications such as prostatitis and intense fever were observed. Three patients had persistent disturbances of micturition following treatment in the form of urinary frequency due to the decreased bladder volume. Neither the grade, nor the frequency of recurrences prior to treatment, nor the solitary or multifocal nature, nor the site of the initial tumour appeared to influence the response to BCG therapy and did not constitute independent individual prognostic indicators.

Eight patients with interstitial cystitis were treated by supratrigonal cystectomy and enterocystoplasty. The indications for this procedure are functionally disabling interstitial cystitis refractory to conservative treatment and associated with severely altered cystomanometric parameters. 6 patients obtained an excellent functional result and 2 patients obtained a poor result, due to sphincter hypotonia responsible for total incontinence in one case.

The curative cell carcinoma is surgery and consists of a radical nephrectomy. Pre-operative assessment must be complete. Indications are extensive because nephrectomy allow, even in evaluated forms, a long and comfortable survival. The incidental discovery of renal cell carcinoma is more and more frequent. It allows limited surgery and should be followed by higher survival rates.

Secondary urethral stricture is the most serious complication of traumatic rupture of the membranous urethra, directly related to the treatment of the rupture. In a series of 45 patients treated for urethral rupture with a minimal follow-up of 5 years, 30 developed stricture (66%). An urethral guide, inserted in 31 cases, was responsible for the stricture in 26 of these cases (84%). This stricture developed rapidly (average of 7.4 months), whether the initial rupture was complete or incomplete and was longer (average of 35 mm) in the case of complete rupture. End-to-end urethrorraphy performed between the 15th and 35th day in 14 patients was complicated by 4 secondary strictures (28%). The treatment of the stricture depended on the initial treatment of the rupture and the radiological length of the stricture. In the case of stricture secondary to an urethral guide, end-to-end urethrorraphy for a stricture less than or equal to 40 mm (12 cases) and 2 stage urethroplasty for a stricture greater than 40 mm (4 cases) achieved a good result in 68.8% of cases. The strictures secondary to end-to-end urethrorraphy (4 cases) were treated by direct vision urethrotomy (3 cases) with 100% of immediate good results and by urethral telescoping (1 case) complicated stress urinary incontinence.

The authors report an eighth case of emphysematous perinephritis and a new case of emphysematous pyelonephritis. The general features of these two diseases and their similarities are described: middle aged diabetic women, clinical picture of sepsis, gas images projected over the renal area with delayed excretion on intravenous pyelography, computed tomography reveals the exact site of the emphysematous images (perinephritic and or intraparenchymal). Emphysematous perinephritis may be an early form of emphysematous pyelonephritis. Surgical drainage of the renal compartment allows conservative management at this early stage.

Varicocele , a disease essentially observed in adults, is underestimated der-estimated in children and adolescents, in whom, for the majority of authors, , the therapeutic management is surgical although the benefits in terms of fertility are unknown. Forty-eight children and adolescents, seen between 1978 and 1983, were followed by clinical examination and subsequent sperm count with a mean follow-up of 5.20 years. The presence at the first examination of the subsequent development of testicular atrophy is a pejorative element in the disease: 12% of children simply followed developed left testicular atrophy at puberty associated with severe anomalies of the sperm count. Persistent testicular atrophy after surgery was synonymous with anomalies of the sperm count in all of these children. Regression of moderate atrophy was observed in three children after surgical cure, but the pre- and post-treatment sperm counts were normal.

Varicocele, a disease essentially observed in adults, is under-estimated in children and adolescents, in whom, for the majority of authors, the therapeutic management is surgical although the benefits in terms of fertility are unknown. Forty-eight children and adolescents, seen between 1978 and 1983, were followed by clinical examination and subsequent sperm count with a mean follow-up of 5.20 years. The presence at the first examination of the subsequent development of testicular atrophy is a pejorative element in the disease: 12% of children managed expectantly developed left testicular atrophy at puberty associated with severe anomalies of the sperm count. Persistent testicular atrophy after surgery was synonymous with anomalies of the sperm count in all of these children. Regression of moderate atrophy was observed in three children after surgical cure, but the pre and post-treatment sperm counts were normal.

Between 1973 and 1986, 57 patients presented with a fracture of the pelvis with rupture of the posterior urethra. All of these patients were treated as an emergency and were then followed periodically with a minimal follow-up of 2 years. There were 4 cases of rupture of the prostatic urethra and 53 cases of rupture of the membranous urethra, including 32 complete ruptures and 21 partial ruptures. In the case of rupture of the membranous urethra, initial treatment, in 34 cases, was realignment by guiding catheter either immediately (25 cases) or deferred emergency (9 cases) and, in the other 19 cases, end-to-end urethrorrhaphy or urethroplasty (2 cases) as a deferred emergency (15th to 32nd day). The results were evaluated on the maximal flow/second and the flowmetry curve, intravenous pyelography with micturating and post-micturating films and the need for dilatations or reoperations. In the cases treated by realignment by guiding catheter, 28 of our 34 patients (82%) developed secondary stenosis which is difficult to treat because of the large amount of granulation tissue and fibrosis, although the best results were obtained by end-to-end urethrorrhaphy (75%). In contrast, repeated dilatations and optical urethrotomies were failures. Deferred emergency end-to-end urethorrhaphy, in 17 cases, ensured a good immediate result in 60% of our patients. Secondary stenosis (7 cases) was always short and easily accessible to optical urethrotomy.(ABSTRACT TRUNCATED AT 250 WORDS)