Pudendal neuralgia is characterized by severe sharp pain along the innervation area of pudendal nerve, which may be worsened when sitting position. Successful pudendal nerve block is crucial to the diagnosis of pudendal neuralgia. Although fluoroscopy-guided pudendal nerve blocks have traditionally been performed, recently ultrasound-guided pudendal nerve blocks were reported. For the long term effect of nerve block, pulsed radiofrequency was performed under fluoroscopic guidance in some reports. We report our successful experiences of three cases using ultrasound-guided pulsed radiofrequency.
Diagnosis ; Humans ; Nerve Block ; Pudendal Nerve* ; Pudendal Neuralgia*

PURPOSE: Although the pudendal nerve terminal motor latency (PNTML) is normally used, there is no definite test that accurately reflects the function of the pudendal nerve. This study was undertaken to determine the relative accuracy of the various methods in measuring the function of the pudendal nerve. METHODS: Thirty one female patients (age 51.3+/-15.7) with a defecation disorder (constipation 20, fecal incontinence 11) were evaluated prospectively using a neurophysiologic test and balloon reflex manometry. Five parameters such as the right and left PNTML, anal mucosal electrosensitivity, latency and the amplitude of the rectoanal contractile reflex (RACR) were analyzed statistically for their correlation. RESULTS: There was no significant inter-test correlation among the parameters. However, the intra-test correlations between the parameters such as the right and left PNTML (r=0.9629, P<0.001)/latency and the RACR amplitude (r= -0.3770, P=0.0366) were found to be significant. CONCLUSION: The accuracy of these tests in evaluating the pudendal neuropathy could not be determined. However, because it can be assumed that a measurement of the RACR in addition to RNTML is technically accurate, it there will need to be more study for it to be used as an alternative to a PNTML measurement.
Defecation ; Fecal Incontinence ; Female ; Humans ; Manometry ; Prospective Studies ; Pudendal Nerve* ; Pudendal Neuralgia ; Reflex

PURPOSE: Pudendal neuralgia (PN) is a painful and disabling condition, which reduces the quality of life as well. Pudendal nerve infiltrations are essential for the diagnosis and the management of PN. The purpose of this study was to compare the effectiveness of finger-guided transvaginal pudendal nerve infiltration (TV-PNI) technique and the ultrasound-guided transgluteal pudendal nerve infiltration (TG-PNI) technique.METHODS: Forty patients who underwent PNI for the diagnosis of PN were evaluated. Thirty-five of these 40 patients, who were diagnosed as PN, underwent a total of 70 further unilateral PNI. All the patients underwent PNI for twice after the first diagnostic PNI, 1 week apart.RESULTS: In the ultrasound (US)-guided TG-PNI group, the success rate was 68.8% (11 of 16) in both “pain in the sitting position” and “pain in the region from the anus to the clitoris.” The success rate of blocks in the US-guided TG-PNI group was 75% (12 of 16) in terms of pain during/after intercourse. In the finger-guided TV-PNI group, the success rate was 84.2% in both “pain in the sitting position” and “pain in the region from the anus to the clitoris.” The success rate of blocks in the fingerguided TV-PNI group was 89.5% (17 of 19) in terms of pain during/after intercourse. There was no statistically significant difference in the success rate of the 3 assessed conditions between the 2 groups (P>0.05).CONCLUSIONS: The TV-PNI may be an alternative to US-guidance technique as a safe, simple, effective approach in pudendal nerve blocks.
Anal Canal ; Anesthesia, Obstetrical ; Diagnosis ; Humans ; Nerve Block ; Neuralgia ; Pelvic Pain ; Pudendal Nerve ; Pudendal Neuralgia ; Quality of Life ; Ultrasonography ; Ultrasonography, Interventional

PURPOSE: We designed this study to evaluate efficacy of sphincter repair and factors influencing in patients with postobstetric fecal incontinence. METHODS: Twenty-one patients (mean age 42 years; range 23~67) undergoing sphincter repair for postobstetric fecal incontinence (mean duration 12 years; range 6 months~46 years) were evaluated prospectively. Preoperatively, standardized interviews, anorectal manometry and measurement of pudendal nerve terminal motor latency (PNTML) were performed. Incontinence was graded according to the Parks' classification: Grade 1 - continence to stool and flatus; Grade 2 - incontinent to flatus, some urgency to stool present but no incontinence; Grade 3 - incontinent to liquid stool; Grade 4 - incontinent to formed stool. Sphincter repair methods were overlap repair of external anal sphincter (EAS) in 4 patients, overlap repair of EAS with anterior levatorplasty in 15 patients, and overlap repair of EAS with anterior levatorplasty and postanal repair in 2 patients. Anorectal manometry at 3 months, and interviews at 3 months and 6 months after sphincter repair were performed again. Patients' satisfaction was classified as excellent, good, fair, and no improvement. RESULTS: Difficulty in first delivery was noticed in 18 patients and history of previous sphincter repair was noticed in 5 patients. Preoperatively, most patients showed high grade incontinence (grade 3 in 13 and grade 4 in 8 patients). After sphincter repair, 18 patients (85.7%) became grade 1 or 2, and 16 patients (76.2%) replied their functional satisfaction excellent or good. There were no difference between the results at 3 months and 6 months. Poor functional outcome was in 2 of 3 patients with bilaterally prolonged preoperative PNTML. Short duration of incontinence and young age at the time of repair favored good results. Previous sphincter repair did not influence the outcome. Postoperatively both anal pressure and high pressure zone length were significantly increased in patients with improved continence Postoperative complications were wound infection in 2 patients and necrosis at the apex of the advancement skin flap in 1 case but these did not influence the outcome. CONCLUSIONS: Most postobstetric fecal incontinence can be successfully treated with sphincter repair. Excellent results are expected when the duration of incontinence is short and the patients are young. Pudendal neuropathy seemed to be related to poor outcome.
Anal Canal ; Classification ; Fecal Incontinence* ; Flatulence ; Humans ; Manometry ; Necrosis ; Postoperative Complications ; Prospective Studies ; Pudendal Nerve ; Pudendal Neuralgia ; Skin ; Wound Infection

PURPOSE: This study was designed to evaluate the outcome of anterior sphincter repair and factors influencing the outcome in patients with obstetric fecal incontinence. METHODS: Thirty-three patients undergoing sphincter repair for obstetric fecal incontinence were prospectively evaluated. Preoperatively, standardized interviews and physiologic studies were performed. The severity of incontinence was graded according to the Parks' classification. Patients' satisfaction was classified as excellent, good, fair, and no improvement. An anterior overlapping sphincteroplasty was performed with or without levatorplasty. Interviews and manometry were repeated three months after the operation. Four years after the operation, the severities of incontinence and patients' satisfaction were reevaluated. RESULTS: Preoperatively, all patients showed high-grade incontinence (grade 3 or 4). Three months after the operation, 28 patients (84.8%) had successfully recovered continence (incontinence grade 1 or 2), and 25 of those patients (75.8%) replied with satisfaction (excellent or good). The maximal average squeeze pressure (MASP) and the high-pressure zone (HPZ) length, but not the maximal average resting pressure (MARP), had significantly increased in patients with successfully recovered continence. At the 4-year follow ups, the outcomes were significantly worse than thase at 3 months, but 24 patients (72.7%) still maintained good outcome, and 25 patients (66.7%) still replied with satisfaction that was not significantly worse than that at 3 months. Patients with a young age (<45 years), a shorter duration of incontinence (<10 years), a larger increase in MASP or MASP at 3 months after the operation, no pudendal neuropathy, and a good result at 3 months were more likely to maintain low-grade incontinence. The addition of levatorplasty and an increase in the HPZ length at 3 months did not affect the outcome. CONCLUSIONS: At the 4-year follow-ups, the outcomes had significantly deteriorated, but patients' satisfaction had not. Age, the duration of incontinence, a postoperative increment in MASP or MASP, pudendal neuropathy, and a short-term good outcome were closely related to the long-term outcome.
Classification ; Fecal Incontinence* ; Follow-Up Studies ; Humans ; Manometry ; Prospective Studies ; Pudendal Neuralgia

We performed this study to investigate defecographic findings in patients with fecal incontinence and to compare these findings with age-matched asymptomatic controls. Twenty patients with fecal incontinence and 20 asymptomatic subjects were included. Videodefecography and pelvic electrophysiologic test were performed. There were no significant differences on the presence of rectal wall changes such as rectocele, mucosal prolapse, or incomplete evacuation, but intussusception was more common in patients group. The anorectal angle were 112.8+/-16.2degrees, 93.0+/-15.0degrees, 118.8+/-16.3degrees at resting, squeezing, and straining, respectively in controls, whereas 121.5+/-20.8degrees, 110.8+/-22.2degrees, 132.0+/-21.1degrees, respectively in patients group. There were significant differences of anorectal angle at squeezing and straining in patients group compared with controls(p< 0.05). Perineal descent was significantly decreased at squeezing in patients group compared with controls(p<0.05). Anal canal width was signi(icantly widened in patients group compared with controls(p<0.05). There were no differences in various defecographic parameters depending on the presence of pudendal neuropathy. In conclusion, defecographic findings in fecal incontinence showed more obtuse anorectal angle, poorer perineal descent at squeezing, and widening of anal canal.
Anal Canal ; Defecography ; Fecal Incontinence* ; Humans ; Intussusception ; Prolapse ; Pudendal Neuralgia ; Rectocele

BACKGROUND: A large amount of attention in anorectal physiologic studies has been devoted to the diagnosis of fecal incontinence. The current study was designed firstly to assess the physiologic characteristics of fecal incontinence and secondly to analyze how the physiologic findings correlate with each other. METHODS: The physiologic findings of 47 patients (24 men and 23 women) were analyzed, retrospectively. Studies included anal manometry (n=38), anal electromyography/pudendal nerve terminal motor latency (PNTML) (n=30), and endoanal ultrasound (n=37). The degrees of continence were estimated by using continence grading scores (CGS) that ranged from 0 to 20 points based on the type and the frequency of incontinence. Control data were obtained from volunteers (n=23). RESULTS: The patients were categorized as having neurogenic (group I, n=25) or myogenic (group II, n=17) incontinence. Despite intensive investigations, unknown etiology was noted in 5 patients (10.4%). The CGS was not different between groups I and II. Pudendal neuropathy was found in 96% of group I and 37.5% of group II patients. Group I showed a higher value of PNTML than that of group II (2.96 1.0 msec vs. 2.07 0.48 msec, p=0.003). The CGS was proportional to the value of the PNTML in group I (r=0.476, p=0.01). However, no correlation was found between the mean PNTML and the CGS in group II. In the manometric parameters, there were no statistical differences between the values of the mean resting pressure (RP), the maximum RP, and the maximum voluntary contraction (MVC) between groups I and II. The MVC was inversely proportional to the CGS in group I (r= 0.616, p=0.02) and in group II (r= 0.664, p=0.02). No correlation was found between the PNTML and the manometric parameters. When we consider the presence of a defect or a scar as an abnormal anal ultrasound finding, such findings were more frequent in group II than in group I (group I, 20% vs. group II, 88%, p<0.001, Fisher's exact test). CONCLUSIONS: The value of the PNTML had relevance to the degree of symptoms in the patients with neurogenic incontinence. Specifically, the squeeze profiles of the manometric parameters were inversely related to the grade of incontinence. No correlation between the PNTML and the manometric parameters could be independently specified based on the etiology. Complementary examination by using the PNTML and anal ultrasound provided the only useful information to discriminate the etiology of incontinence.
Cicatrix ; Diagnosis ; Fecal Incontinence* ; Humans ; Male ; Manometry ; Physiology* ; Pudendal Neuralgia ; Retrospective Studies ; Ultrasonography ; Volunteers

Pudendal nerve entrapment syndrome is an unusual cause of chronic pelvic pain. We experienced a case of pudendal neuralgia associated with a ganglion cyst. A 60-year-old male patient with a tingling sensation and burning pain in the right buttock and perineal area visited our outpatient rehabilitation center. Pelvis magnetic resonance imaging showed the presence of multiple ganglion cysts around the right ischial spine and sacrospinous ligament, and the pudendal nerve and vessel bundle were located between the ischial spine and ganglion cyst at the entrance of Alcock's canal. We aspirated the lesions under ultrasound guidance, and consequently his symptoms subsided during a 6-month follow-up. This is the first report of pudendal neuralgia caused by compression from a ganglion cyst around the sacrospinous ligament.
Burns ; Buttocks ; Follow-Up Studies ; Ganglion Cysts* ; Humans ; Ligaments ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Outpatients ; Pelvic Pain ; Pelvis ; Pudendal Nerve* ; Pudendal Neuralgia* ; Rehabilitation Centers ; Sensation ; Spine ; Ultrasonography

Neuroablation should be performed cautiously because neuropathic pain can occur following denervation of a somatic nerve. A 34-year-old man presented with severe penile pain and allodynia following a selective neurectomy of the sensory nerve that innervated the glans penis for treatment of his premature ejaculation. He was treated with various nerve blocks, including continuous epidural infusion, lumbar sympathetic block and sacral selective transforaminal epidural blocks, as well as intravenous ketamine therapy. However, all of the treatments had little effect on the relief of his pain. We performed spinal cord stimulation as the next therapy. After this therapy, the patient has currently been satisfied for 3 months.
Adult ; Denervation ; Humans ; Hyperalgesia ; Ketamine ; Male ; Nerve Block ; Neuralgia ; Penis ; Premature Ejaculation ; Pudendal Nerve ; Spinal Cord ; Spinal Cord Stimulation

Fecal incontinence is a disabling condition with devastating psychosocial impact due to diverse etiology. This study was performed to assess various causes of fecal incontinence, clinical evaluation, and adequate surgical treatment. METHODS: Eighty patients presenting fecal incontinence during July 1989 and June 1997 were included. They were evaluated by clinical parameters and physiologic tests including the defecography, electromyography, transanal ultrasonography, and anorectal manometry. Surgery was performed in 31 patients based on those evaluation. Pre- and post-operative comparison of manometric findings, clinical assessment, incontinence score, and the outcome of surgery were assessed. Mean postoperative follow-up was 22 (2~84) months. RESULTS: Inappropriate anal surgery was the most common cause, and then injuries during delivery, trauma, rectal prolapse, and hysterectomy in descending order. Defecography was performed in 21 patients and mean values of anorectal angles were 115+/-15degrees at rest, 98+/-18degrees during squeezing, and 136+/-10degrees during push. Electromyography was performed in 8 patients showing pudendal neuropathy in 2, bilateral lumbosacral polyradiculopathy in 4, and normal finding in 2 patients, respectively. Transanal ultrasonography was performed in 33 patients and 22 among them showed finding of an injury of the anal sphincters. Surgery was performed in 31 patients due to anal sphincter damage, rectovaginal fistula, and anal stricture in descending order. Type of surgery was determined by respective cause: plication, triple repair (sphincteroplasty, anoplasty, perineorrhaphy), and posterior rectopexy in descending order. Nerve preserving graciloplasty was performed in a 12 year-old girl who had severe defect of the anal sphincters by traffic accident, showing sound recovery with a good functional outcome. Although there was no significant difference of manometric variables between pre- and post-operative periods, sphincter length, and maximum resting and squeezing pressure, revealed an increasing tendency postoperatively. According to the clinical assessment between pre- and post-operative periods, urgency to evacuate, soiling, sensation on defecation, and quality discrimination were significantly improved postoperatively (P<0.01). Incontinence score was markedly decreased from 10.6+/-6.1 during preoperative period to 2.9+/-4.7 during postoperative period (P<0.01). Eighty one percent of the patients undergone surgery experienced a significant symptomatic improvement. CONCLUSIONS: According to the analysis of the causes of fecal incontinence, inappropriate anal surgery, injuries during delivery, and trauma were main causes. Adequate application of physiologic tests, such as, defecography, electromyography, transanal ultrasonography, and anorectal manometry, were helpful in determining treatment modality and types of surgery. We got satisfactory results with adequate surgery based on the physiologic tests.
Accidents, Traffic ; Anal Canal ; Child ; Constriction, Pathologic ; Defecation ; Defecography ; Discrimination (Psychology) ; Electromyography ; Fecal Incontinence* ; Feces ; Female ; Follow-Up Studies ; Humans ; Hysterectomy ; Manometry ; Polyradiculopathy ; Postoperative Period ; Preoperative Period ; Pudendal Neuralgia ; Rectal Prolapse ; Rectovaginal Fistula ; Sensation ; Soil ; Ultrasonography