Tunica albuginea versus buccal mucosa graft urethroplasty for anterior urethral stricture: A prospective randomised pilot study

Objective:The objective of the study was to compare the outcome of tunica albuginea urethroplasty(TAU)and buccal mucosa graft(BMG)urethroplasty for anterior urethral stricture.Methods:Thirty patients who met the inclusion criteria were randomised into two groups:TAU(Group A)and BMG urethroplasty(Group B).Surgical outcome was evaluated with pre-and post-operative work-up involving retrograde urethrogram,voiding cystourethrogram,uroflowmetry,and urethroscopy.Patients were followed up till 1 year.Results:Mean duration of surgery was statistically significant between two groups(p=0.0005).Maximum urine flow rate was comparable when compared between two groups(p=0.22)but statistically significant when compared pre-and post-operatively(p<0.001).At follow-up of 1 year,the successful outcomes were 80% in Group A and 87%in Group B.A total of five patients who had unsuccessful results required redo urethroplasty.Complications were minimal in both the groups.Conclusion:TAU provides outcomes equivalent to those of BMG urethroplasty.TAU has less operative time,easy to perform,and beneficial in patients with poor oral hygiene.

Ultrastructural changes of penile tunica albuginea in diabetic rats

Aim: To clarify the ultrastructural changes of penile tunica albuginea (TA) in streptozotocin (STZ)-induced diabetic rats. Methods: Intraperitoneal injection of STZ was used to induce diabetes mellitus (DM) in 12 Sprague Dawley rats. Ten rats (age and weight-matched) were used as control. Blood samples from the tail snips of the rats were used for the determination of serum glucose levels with SureStep Plus Blood Meter. At week 4 and 10 after the injection, half of the rats in each group were sacrificed and penile samples were obtained from the middle third of the penile shaft for the examination of TA under scanning electron microscopy. Results: In the diabetic group, the serum glucose levels were higher (P<0.01 at both time points) and the TA were thinner (P<0.05) than those of the controls. In the control group, the fibers of TA were rich and arranged regularly and undulated, while in the diabetic group, the fibers were diminished, lost the undulations and were arranged irregularly. Conclusion: In rats, DM appeared to impair the penile TA ultrastructures and this impairment could contribute to diabetic erectile dysfunction in part by impairing the veno-occlusive function.

Penile prosthesis implantation and tunica albuginea incision without grafting in the treatment of Peyronie＇s disease with erectile dysfunction

We evaluated penile prosthesis implantation with tunica albuginea-relaxing incisions without grafting in the treatment of Peyronie＇s disease associated with erectile dysfunction. Between April 2005 and June 2011, 62 patients underwent surgery due to severe Peyronie＇s disease associated with erectile dysfunction. Malleable and inflatable penile prostheses were inserted in 49 and 13 cases, respectively. Penile prostheses were inserted into the corpora cavernosa using the standard ventral approach. After lifting the neurovascular bundle, the tunica albuginea was incised and opened at the plaque region to correct the deformities and to lengthen the penis. Subsequently, the wide neurovascular bundle was replaced, and all incisions of the tunica albuginea were covered to prevent corporal grafting. In the median follow-up of 35 months （range 14-82 months）, the penis was completely straightened in 59 （95%） patients. Numbness of the glans, which the patients found initially upsetting, decreased or disappeared spontaneously 3-6 months later. Penile prosthesis implantation with tunica albuginea incisions is a viable alternative in the treatment of Peyronie＇s disease because the extensive dissection of the neurovascular bundle allows a good approach to the plaque and provides excellent covering of the incised tunica albuginea without additional grafting.

Isolated ventral congenital penile curvature treated by incisionless plication of tunica albuginea in adults:A prospective case series

Background:Numerous surgical techniques are available for the correction of isolated ventral congenital penile curvature(IVCPC).This study aimed to assess the outcomes and predictors of IVCPC treatment in adults using an incisionless plication technique.Materials and methods:This prospective case series examined patients with IVCPC who were treated in our hospital between October 2017 and February 2020 using incisionless plication of the tunica albuginea(Essed-Schroeder technique)with a covering pair of absorbable sutures.The primary outcomes were successful correction(defined as a residual curvature≤15 degrees)and patient satisfaction.Postoperative follow-ups were performed at 3,6,and 12 months.Results:A total of 23 patients were treated for IVCPC with a mean(range)age of 25.3(18-31)years.Eighteen patients(78.3%)were single with cosmetic complaints,whereas the other 5 patients(21.7%)were married and presented with a difficult vaginal intromission.The mean(range)curvature,length,and operative time were 40(30-50)degrees,15(10-19)cm,and 82(65-100)minutes,respectively.Postoperative penile pain and numbness occurred in 13 patients(56.5%)and 7 patients(30.4%)only within the first month,respectively.Palpable suture knots were reported in 15 patients(65.5%)without being bothersome up to 12 months.The postoperative means(ranges)of penile curvature and length were significantly different from that of the preoperative values at 3(5[0-20]degrees and 14.5[9-18.5]cm),6(5[0-20]degrees and 14.5[9-18.5]cm),and 12 months(5[0-30]degrees and 14.5[9-18.5]cm;all p<0.001).Age,preoperative penile curvature,penile length,postoperative pain,wound infections,and knot palpation insignificantly affected curvature recurrence.Seventeen patients(73.9%)were very satisfied with their surgical outcomes.Conclusions:Incisionless plication of the tunica albuginea is effective and safe for the correction of IVCPC in adults with high success and patient satisfaction rates.

Microsurgical tunica albuginea transplantation in an animal model

Several andrological diseases require surgical repair or reconstruction of tunica albuginea, which envelops the corpora cavernosa penis. Despite intense research efforts involving a variety of biological materials, such as skin, muscle aponeurosis, human dura mater, tunica vaginalis, and pericardium, engineered tunica albuginea suitable for graft use is yet to be obtained. The study investigates microsurgical tunica albuginea allotransplantation in an animal model with the purpose of creation of an organ-specific tissue bank to store penile tissue, from cadaveric donors and male-to-female trans-sexual surgery, for allogeneic transplantation. Materials were tunica albuginea tissue explanted from 15 donor rats, cryopreserved at -80~C, gamma-irradiated, and implanted in 15 recipient rats, of which three rats were used as controls. Penile grafts were explanted at different time intervals; after macroscopic evaluation of the organ, the grafts were processed to morphological, histochemical, and immunohistochemical examinations by light microscopy. Detection of pro-inflammatory cytokines was also performed. Examination of the tunica albuginea allografts collected 1, 3, or 6 months after surgery and of control tunica albuginea fragments showed that tunica albuginea implants achieved biointegration with adjacent tissue at all-time points. The integration of cryopreserved rat tunica albuginea allografts, documented by our study, encourages the exploration of tunica albuginea allotransplantation in humans. In conclusion, the effectiveness and reliability of the tunica albuginea conditioning protocol described here suggest the feasibility of setting up a tunica albuginea bank as a further tissue bank.

Anti-lysyl oxidase combined with a vacuum device induces penile lengthening by remodeling the tunica albuginea

This study aimed to explore whether and how anti-lysyl oxidase(anti-LOX)combined with a vacuum device(VD)could promote penile lengthening and to evaluate the effect on erectile function.This study was performed on four groups of adult rats:control,anti-LOX,VD(negative pressure value of-300 mmHg),and anti-LOX+VD.Penile length was measured by a modified VD method and verified on exposed length data.Intracavernous pressure(ICP)and maximum ICP/mean arterial pressure(MAP)ratio were recorded to assess erectile function.For corpus cavernosum,LOX activity and concentrations of pyridinoline,desmosine,hydroxyproline,and elastin were analyzed;transmission electron microscope and Hart’s elastin staining were performed to monitor microstructural changes.Anti-LOX and VD significantly lengthened the penis by 10.8%(3.75 mm)and 8.2%(2.48 mm)compared with the control group,respectively,while anti-LOX+VD achieved the longest penile size(40.58±0.40 mm)which was 17.4%longer than the control group(34.58±0.54 mm).After 1-week washout,no penile retraction was observed.Meanwhile,exposed penile length data confirmed that the penis in the anti-LOX+VD group was also significantly longer.Anti-LOX inhibited LOX activity to reduce pyridinoline level,which led the penile tunica albuginea remodeling.However,it had no effect on hydroxyproline,desmosine,and elastin levels.Moreover,anti-LOX had no impact on erectile function,which was determined by ICP and ICP/MAP ratio.These results suggest that anti-LOX elongates the penis by reducing pyridinoline,which induces tunica albuginea remodeling.This lengthening effect was more obvious when combined with a VD.All procedures had no impact on erectile function.

Effect of androgen deprivation on penile ultrastructure

<abstract>Aim: To investigate the ultrastructural changes of penile corpus cavernosum and tunica albuginea in rats treated with castration or finasteride. Methods: Eighteen male Sprague-Dawley rats of nine weeks old were randomly divided into three groups with 6 rats each. Group A served as the control, Group B was castrated and Group C, treated with finasteride. Four weeks later, rats were anesthetized and blood samples obtained for the determination of serum testosterone (T) and dihydrotestosterone (DHT) levels; penile tissues were taken for scanning electron microscopy. Results: The T, free T and DHT levels in Group B and the DHT level in Group C were significantly lower than those in Group A (P<0.05). The tunica albuginea was significantly thinner in Group B than that in Group A (P<0.05), but there was no significant difference between Group C and Group A (P>0.05). Elastic fibers in the tunica albuginea of Group A were very rich and arranged regularly and undulatedly, but in Group B, most of the elastic fibers were replaced by collagenous fibers. In Group C, the tunica albuginea was mainly composed of thick and irregular-arranged collagenous fibers. In Group A, there were abundant smooth muscle fibers in the trabeculae of corpus cavernosum, but they were much less in Group C and scarce or even disappeared in Group B. In Groups B and C, the diminished/disappeared smooth muscle fibers were replaced by irregularly arranged collagenous fibers. Conclusion: In rats, androgen is essential for maintaining the normal structure of penile tunica albuginea and corpus carvenosum.

糖尿病性大鼠阴茎白膜弹性纤维改变对勃起功能的影响

目的了解糖尿病大鼠白膜中弹性纤维改变对勃起功能的影响。方法利用链脲佐菌素(STZ)制作糖尿病及糖尿病性勃起功能障碍模型,40只SPF级SD雄性大鼠,先按时间随机分为两组(每组20只),分别是注射STZ后7周组和4周组,再按处理因素即给予大鼠腹腔注射STZ(60mg/kg)是否成模,分为对照组(未注射STZ,5只)、糖尿病性勃起功能障碍模型组、糖尿病性非勃起功能障碍组、未成模组。利用维多利亚蓝-丽春红染色法对不同处理组的标本进行弹性纤维染色,利用彩色图文系统进行分析,以累积光密度(IOD)作为测量指标。结果各处理组间IOD存在显著性差异(F=10.433,P<0.001),糖尿病性勃起功能障碍组IOD均小于对照组、糖尿病非勃起功能障碍组及未成模组(P<0.05),糖尿病非勃起功能障碍组的IOD小于对照组(P<0.05),不同时间点间的IOD不存在显著性差异(F=0.685,P=0.415),不存在交互效应(F=0.905,P=0.452)。结论糖尿病可以导致白膜弹性纤维减少;白膜中的弹性纤维在勃起过程中起重要作用;白膜中弹性纤维的减少将导致勃起功能障碍。

Surgery for Peyronie＇s disease

Peymnie＇s disease （PD） is most simply referred to as a fibrotic wound-healing disorder of the tunica albuginea. It is both a physically and psychologically devastating disorder that causes penile deformity, curvature, hinging, narrowing and shortening, which may compromise sexual function. Although a variety of non-surgical treatments have been suggested, none to date offer a reliable and effective correction of the penile deformity. As a result, surgery remains the gold standard treatment option, offering the most rapid and reliable treatment which will be the focus of this article. We review the preoperative evaluation, surgical algorithm, graft materials and postoperative management of PD. Outcomes for tunical shortening, tunical lengthening and penile prosthesis placement for penile straightening are reviewed. Tunica albuginea plication is the preferred method of straightening for men with adequate rigidity and less severe disease defined as curvature less than 70° without narrowing/hinging. Men who have more severe, complex deformity, but maintain strong preoperative erectile function should be considered candidates for straightening with plaque incision or partial excision and grafting. Finally, for those men who have inadequate rigidity and PD, penile prosthesis placement with straightening is the best approach to address both problems.

Surgical treatment of Peyronie＇s disease： choosing the best approach to improve patient satisfaction

Aim： To discuss important points on medical history, preoperative evaluation, real expectations, and selection of the appropriate surgical procedure to improve patient satisfaction after surgical procedures for Peyronie＇s disease. Methods： Recent advances in approaches to Peyronie＇s disease are discussed based on the literature and personal experiences. Issues concerning surgical indication, patient selection, surgical techniques, and grafting are discussed. Lengthening procedures on the convex side of the penile curvature by means of grafting offer the best possible gain from a reconstruction standpoint. Penile rectification and rigidity are required to achieve a completely functional penis. Most patients experience associated erectile dysfunction （ED）, and penile straightening alone may not be enough to restore complete function. Twenty-five patients were submitted to total penile reconstruction on length and girth with concomitant penile prosthesis implant. The maximum length restoration was possible and limited by the length of the dissected neurovascular bundle. The mean age was 55.4 years （32-69 years） and the mean angle of curvature 74.2± 22.4° （0-100°）. Pericardial grafting was used to cover the defect. The mean follow-up time was 11.2 ± 5.9 months （3-22 months）. Results： Mean functional penile length gain was 3.40 ＋ 0.73 cm （2-5 cm）. Penile prosthesis maintained the penis straight. No infections occurred. Sexual intercourse was restored in all patients and all reported recovered self-esteem. Conclusion： Improving patient satisfaction with the surgical treatment includes proper preoperative evaluation on stable disease, penile shortening, vascular and erectile status, patient decision and selection as well as extensive discussion on surgical technique for restoring functional penis （length and rigidity）. Length and girth restoration is very important for self-esteem and patient satisfaction.

彩色多普勒超声在阴茎折断中的应用价值

目的:回顾性评估彩色多普勒超声对阴茎海绵体白膜破裂的诊断准确率及价值,分析影响预后的因素。方法:选取北京大学第一医院2013~2021年收治的57例阴茎海绵体白膜破裂患者作为研究对象,通过收集术前彩色多普勒超声对破口位置、大小、数目、有无尿道损伤以及术中情况,进行对比分析来评估彩色多普勒超声的准确率及价值。结果:57例患者彩色多普勒超声均提示有白膜损伤,术中探查发现54例有白膜损伤,3例无白膜损伤,彩色多普勒超声诊断准确率(54/57,94.7%);彩色多普勒超声提示2例为双侧损伤,术中发现7例为双侧损伤;彩色多普勒超声提示6例尿道损伤,术中发现13例合并尿道损伤。尿道损伤患者经一期尿道修补术后随访至今均未出现尿道狭窄和尿瘘,1年后随访无中重度ED发生。结论:虽然不能代替病史和查体的诊断价值,不能作为是否手术的金标准,超声检查仍存在一定价值,超声对于海绵体白膜破裂的诊断率准确率较高,并在选择手术切口位置时有参考价值。

人类阴茎解剖学、勃起的血液动力学及其临床应用的学说(英文)

Aim： To summarize recent advances in human penile anatomy, hemodynamics and their clinical applications. Methods： Using dissecting, light, scanning and transmission electron microscopy the fibroskeleton structure, penile venous vasculature, the relationship of the architecture between the skeletal and smooth muscles, and erection hemodynamics were studied on human cadaveric penises and clinical patients over a period of 10 years. Results： The tunica albuginea of the corpora cavernosa is a bi-layered structure with inner circular and outer longitudinal collagen bundles. Although there is no bone in the human glans, a strong equivalent distal ligament acts as a trunk of the glans penis. A guaranteed method of local anesthesia for penile surgeries and a tunical surgery was developed accordingly. On the venous vasculature it is elucidated that a deep dorsal vein, a couple of cavernosal veins and two pairs of para-arterial veins are located between the Buck＇s fascia and the tunica albuginea. Furthermore, a hemodynamic study suggests that a fully rigid erection may depend upon the drainage veins as well, rather than just the intracavemosal smooth muscle. It is believed that penile venous surgery deserves another look, and that it may be meaningful if thoroughly and carefully performed. Accordingly, a penile venous surgery was developed. Conclusion： Using this new insight into penile anatomy and physiology, exact penile curvature correction, refined penile implants and promising penile venous surgery, as well as a venous patch, for treating Peyronie＇s deformity might be performed under pure local anesthesia on an outpatient basis. （Asian J Androl 2006 Mar; 8： 225-234）

Identification of potential biomarkers of Peyronie's disease

Aim： To identity proteins that are differentially expressed in cells derived from normal and diseased tunica albuginea （TA） as related to Peyronie＇s disease （PD）. Methods： Cells with characteristics of fibroblasts were isolated from two tissue sources. Those from the plaque of patients with PD were designated as PT cells, and those from the normally- appearing TA of the same patients were designated as NT cells. Messenger RNAs of these cells were analyzed by real-time polymerase chain reaction （RT-PCR） for the expression of monocyte chemoattractant protein 1 （MCP-1）. Crude protein lysates were analyzed by surface-enhanced laser desorption/ionization mass spectrometry （SELDI-MS） with IMAC30-Cu, CM10, and H50 chips. Each lysate was then separated into six fractions, which were further analyzed by SELDI-MS. Results： RT- PCR analysis showed that PT cells expressed higher levels of MCP-1 than their counterpart NT cells. SELDI-MS analysis showed that the crude protein lysates of all four cell strains produced similar and reproducible protein profiles on IMAC30-Cu and CM 10 chips. Additional SELDI-MS analyses with the fractionated lysates detected three proteins of 11.6 kDa, 14.5 kDa, 22.6 kDa that were upregulated in PT cells and two proteins of 6.3 kDa and 46,9 kDa that were downregulated in PT cells. Conclusion： MCP-1, which is often involved in tissue fibrosis, was expressed at higher levels in PT than that in NT cells. Five potential biomarkers for PD were identified by SELDI-MS analysis. （Asian J Androl 2005 Sep; 7： 237-243）

Effects of extra-corporeal shock waves on penile hemodynamics and histopathology in rats

Aim: To study the effect of extra-corporeal shock wave (ESW) on the penile hemodynamics and histopathology in rats. Methods: Adult male Sprague-Dawley rats were divided at random into 3 groups. ESW application was performed with a Siemens Lithostar with the rats under anesthesia lying prone on the balloon probe. Rats in Group Ⅰ received a total of 1000 shocks at 18 kV and immediately underwent hemodynamic evaluation performed by direct electrostimulation of the cavernous nerve and measurement of intracavernous pressure (ICP). Rats in Group Ⅱ received 3 times 1000 shocks at 18 kV at weekly intervals and hemodynamic evaluation was performed 1 month after the last ESW application. Group Ⅲ served as the control. Histopathological examinations of penile tissues were done on Masson's trichrome and hematoxylin and eosin stained sections. Results: Penile hemodynamic evaluation showed a trend toward a diminished mean maximal ICP, duration of erection, ICP during the plateau phase and maximal ICP/blood pressure ratio in Group Ⅰ, although there was no significant significance. The mean latency period in Groups Ⅰ and Ⅱ was prolonged. Petechial bleeding within tunical layers and small loci of hemorrhage within the corpora cavernosa were observed in Group Ⅰ. However, histopathological examination failed to reveal any significant differences between the groups in terms of smooth muscle content, tunical thickness, organization of collagen bundles and elastic fiber-lattice framework. Conclusion: ESW has certain damaging effects on the penis. (Asian J Androl 2002 Dec; 4: 249-253)

Penile Fracture—Report on Three Cases from Cape Coast, Ghana

Introduction: Penile fracture is a urological emergency that occurs when the penis in an erect state suffers a blunt trauma resulting in a rupture of the tunica albuginea of either one or both corpora cavernosa. It is often caused by vigorous sexual intercourse, hence the incidence of penile fracture is under-reported. We therefore present our experience of the clinical presentation and surgical management of penile fracture. Presentation of Cases: We report three cases of penile fracture and all were diagnosed based on their clinical presentation and examination findings. The patients include two middle aged men and one young man, all with history of hearing a popping sound and experiencing sudden onset pain with detumescence of the penis. No radiological investigations were carried out. An emergency surgical repair was done for all patients. Discussion: All the patients had no urethral injury on presentation and underwent immediate surgical repair. The erectile and voiding function of each patient was preserved. Conclusion: The management of penile fracture involves early diagnosis and immediate surgical repair. Early intervention is necessary to preserve penile function.

干细胞治疗阴茎硬结症的相关研究进展

阴茎硬结症是一种阴茎结缔组织纤维化疾病,其病理解剖位置位于白膜,纤维性斑块是其病理特征,发病机制尚不明确。针对阴茎硬结症有效且损伤小的治疗方式仍处于探索阶段。目前一些实验研究初步肯定了干细胞(尤其是脂肪干细胞)对阴茎硬结症的防治作用并探索了部分作用机理,还有学者将干细胞与补片材料有机结合,以期优化临床中白膜移植和重建术;唯一公开发表的干细胞治疗阴茎硬结症临床试验研究结果亦较乐观。但在将来,相关研究应在优化方案的同时进一步开展。总之,将干细胞融入阴茎硬结症的防治管理是具有临床应用前景的课题方向,且仍有诸多未知亟待探索,本文据已有研究作一综述。

Peyronie病的临床治疗进展

Peyronie病(Peyronie’s disease,PD)目前病因尚不明确,许多专家认为是性交引起地阴茎白膜反复损伤导致其创伤修复障碍,在阴茎海绵体白膜发生病变,胶原沉积形成纤维斑块组织。Peyronie病不仅引起患者身体的畸形,还会对患者造成心理障碍。目前对Peyronie病的病理生理的过程并不完全明确,许多临床研究结果存在前后矛盾,文章就近年来的Peyronie病的临床治疗进展做一综述。

消炎痛对大鼠成熟滤泡破裂的影响——形态学观察

本工作的目的是,观察前列腺素合成的抑制物——消炎痛对大鼠排卵的抑制作用,并从形态学的角度对已排卵的以及排卵受阻的滤泡壁成份进行比较,藉此,探讨卵巢自身的前列腺素在滤泡破裂机制中的作用。25—27天龄Wistar大鼠用PMSG与HCG诱导成熟,其中部分动物作为对照,排卵率为100%;另一部分动物皮下注射消炎痛3.0mg/只,94%的动物被抑制排卵。处于动情前期的自然成熟鼠,注射消炎痛5mg/只或7.5 mg/只,排卵抑制率达100%,而对照鼠均排卵。从诱导成熟及自然成熟的大鼠卵巢组织切片所见,对照鼠已排卵滤泡的裂口处的白膜与膜层的结缔组织纤维断裂;被消炎痛抑制排卵的动物,卵母细胞因不能突破膜层或白膜而受阻。于电镜下见到,对照动物滤泡裂口附近泡壁的白膜细胞及外膜细胞出现退化、解体;与此同时,存在于这两种组织巾的胶元蛋白纤维也呈溶解现象。实验组排卵被阻的滤泡,白膜下与外膜细胞中间仍存在大量胶元蛋白纤维,因而使白膜与外膜层成为阻挡卵母细胞排出的屏障。另外,内膜与颗粒细胞的高尔基体发达,粗糙的内质网趋向光滑,说明这两类细胞分泌功能旺盛。关于前列腺素对胶元蛋白纤维降解的可能作用以及动物经消炎痛处理后仍产生类固醇激素的可能性均进行了讨论。

4～8℃冰水应用于儿童扁桃体低温等离子切除术对术后假膜脱落时间的影响

目的：探讨4-8℃冰水应用于儿童扁桃体低温等离子切除术对术后假膜脱落时间的影响。方法：以117例良性扁桃体肥大并且符合手术指征的患儿为研究对象,其中56例患儿纳入实验组,以4-8℃冰（0.9%NaCl）生理盐水作为递质行等离子辅助下的扁桃体切割手术;另61例患儿纳入对照组,以手术室常温22-25℃（0.9%NaCl）生理盐水作为递质行等离子辅助下扁桃体切割手术,比较2组患儿术后假膜完全脱落的时间。结果：实验组与对照组假膜形成时间差异无统计学意义（P〉0.05）;实验组假膜脱落时间为（11.32±2.51）d,对照组为（15.03±4.12）d,差异有统计学意义（P〈0.05）。结论：4-8℃冰水应用于儿童扁桃体低温等离子切除术可缩短术后假膜脱落的时间,可能提示冰水递质应用于等离子手术可降低其所造成的热损伤。

单纯阴茎腹侧白膜切开术纠正尿道下裂阴茎下弯效果探讨

目的探讨单纯白膜切开的阴茎腹侧延长术纠正尿道下裂中海绵体不对称所致阴茎下弯的效果。方法回顾分析2016年1月至2018年12月间39例利用单纯白膜切开的阴茎腹侧延长术纠正海绵体不对称的尿道下裂患儿(其中36例为浙大儿院泌尿外科病例,3例为嘉兴第一医院泌尿外科病例)。患儿年龄0.5~5岁,中位年龄1.1岁。第一期手术,先给予阴茎皮肤肉膜彻底脱套松解皮肤及筋膜引起的牵拉,再离断尿道板解除短尿道因素,然后测量阴茎背侧长度A和伸直前阴茎腹侧长度B,白膜切开术使阴茎完全伸直后测量阴茎腹侧长度C;第二期手术,人工勃起试验观察阴茎下弯情况,测量阴茎背侧长度D和阴茎腹侧长度E。比较阴茎伸直前后背侧腹侧的长度。结果第一期手术中测得阴茎背侧长度A为33~39(35.6±3.2)mm;伸直前阴茎腹侧长度B为28~35(29.8±2.8)mm;伸直后阴茎腹侧长度C为32~38(34.3±2.1)mm。B和C两者差异有统计学意义(P<0.05);A和C差异无统计学意义(P>0.05)。第二期手术中测得阴茎背侧长度D为34~41(36.4±2.5)mm,测得阴茎腹侧长度E为33~40(35.7±3.6)mm,两者差异无统计学意义(P>0.05)。患儿随访0.5~2.5年,平均1.7年。所有患儿根据侧面照片测量勃起时阴茎下弯角度均<15°。结论单纯阴茎腹侧白膜切开术有效纠正阴茎海绵体不对称所致阴茎下弯,近期效果佳;术中测量比较腹侧及背侧阴茎的长度可以验证其延长腹侧阴茎的效果。