The Elasticity and the Tensile Strength of Tunica Albuginea of the Corpora Cavernosa

Bitsch, Mikael; Kromann‐Andersen, Bjarne; Schou, J.; Sjøntoft, Erik

doi:10.1016/s0022-5347(17)40047-4

Cited by 127 publications

(87 citation statements)

References 13 publications

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“…In such cases, ICP has been reported to exceed 1500 mmHg. 15,16 The results of our study, showing that the glans limits the ICP increase upon external loading, demonstrate that the presence of the glans prevents corporal trauma during intercourse. A mechanical model has been developed to further support our findings and express the increase in ICP values in an erect penis with and without a glans and could be used for further research purposes (Appendix).…”

Section: Discussionsupporting

confidence: 51%

Protective role of the glans penis during coitus

et al. 2003

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To examine the hypothesis that the glans penis acts protectively, absorbing forces, during coitus. Five potent patients (mean age 46.8 7 9.7 y), who had indication for surgical excision of the glans for penile carcinoma were included in the present study. Intraoperatively, intracavernosal pressure (ICP) was adjusted by saline infusion and maintained by a pressure feedback infusion pump to a pressure value of 70 mmHg. Using a dynamometer, an external compressive force of 0.5 kg was applied at the glans penis and the changes in ICP were monitored. Measurements were repeated after surgical excision of the glans. Significant ICP changes were noticed in all patients after excision of the glans. Mean preoperative ICP was 161 7 11.5 mmHg, while after glansectomy it reached 206.6 7 13 mmHg. DICP was 45.8 7 10.57 mmHg. Two of the patients' partners reported pain during intercourse postoperatively, possibly due to the impact of the force applied by the rigid corpora cavernosa on the anterior vaginal wall without any absorption by the glans. The glans penis restricts the increase in ICP during sexual intercourse, playing a protective role for both the corpora cavernosa and the female genitalia.

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Section: Discussionsupporting

confidence: 51%

Protective role of the glans penis during coitus

et al. 2003

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“…26 These fibers allow penile elongation during tumescence and an increase in girth during erection while providing adequate resilience for a rapid return to the relaxed nonerect state at detumescence. 27,28 Loss of corporeal elasticity by decreased vascularity with consequent increased ratio of cavernosal smooth muscle content and thickening of tunica albuginea may be the result of xenoestrogenic effect of BPA, which adversely affects erectile homodynamic. The corpus cavernosum seems very sensitive to the stimulation by BPA in this study.…”

Section: Discussionmentioning

confidence: 99%

Bisphenol A inhibits penile erection via alteration of histology in the rabbit

Sung

et al. 2001

Int J Impot Res

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Despite extensive research into the toxicity of bisphenol A (BPA), no report of its effect on erectile function exists. We performed this study to investigate the effect of BPA on erectile function. New Zealand white rabbits were treated intraperitoneally with 150 mg=kg of BPA every other day for 12 days (cumulative dose of 900 mg=kg). Four and 8 weeks after administration of BPA, the contractions and relaxation of cavernosal tissue strips were significantly suppressed in the BPAtreated animals compared to the control animals. Histologically, thickening of tunica albuginea, subtunical deposition of fat and decreased sinusoidal space with consequent increase of trabecular smooth muscle content were observed in the BPA-treated animals. These results suggest that xenoestrogen BPA may affect the erectile function through evident histological changes of the penis.

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“…The normal pressure within the erect penis is 100 mmHg. For tunica rupture, 1500 mmHg intracorporal pressure is required [4].…”

Section: Discussionmentioning

confidence: 99%

Fracture With Urethral Injury: Evaluation by Retrograde Urethrogram

et al. 2017

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Penile fracture is a rare condition. It primarily involves the rupture of the corpus cavernosum during erection, which may also affect the corpus spongiosum and urethra. We describe the case of a 35-year-old man who presented with acute penile pain, penile swelling, and a hematuria after a blunt trauma during sexual intercourse. The emergency retrograde urethrogram revealed a rare condition, extravasation of the opaque material from the penile urethra into the cavernous structure. The partial rupture of the corpus cavernosum with urethral disruption was repaired surgically. At the 3-month postoperative follow-up control, no complications were reported by the patient who has had both normal erectile and voiding functions. In cases of penile fracture with suspected urethral injury, retrograde urethrogram can be used for definitive diagnosis.Keywords: Penile fracture, urethral injury, imaging, retrograde urethrogram, magnetic resonance ÖZPenil fraktür nadir görülen bir durumdur. Penis ereksiyonu esnasında oluşan travma sonucu öncelikle korpus kavernozum rüptürü oluşur ve bu esnada korpus spongiozum ve üretra da etkilenebilir. 35 yaşında erkek hasta cinsel ilişki sırasında oluşan künt travma sonrasında akut penil ağrı, penil şişlik ve hematüri ile acil servise başvurdu. Acil retrograd üretrogram çekiminde verilen opak maddenin penil üretradan kavernoz yapılara ekstravaze olduğu (nadir görülen) izlendi. Penil üretradaki ve kavernöz yapılardaki parsiyel rüptür cerrahi olarak onarıldı. Hastanın post-operatif 3. aydaki takibinde, komplikasyonun olmadığı ve hastanın ereksiyonunun ve işeme fonksiyonunun normal olduğu gözlendi. Üretral yaralanma şüphesi olan penil fraktur olgularında retrograd üretrogram tanı koyduru cudur.

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The Elasticity and the Tensile Strength of Tunica Albuginea of the Corpora Cavernosa

Cited by 127 publications

References 13 publications

Protective role of the glans penis during coitus

Protective role of the glans penis during coitus

Bisphenol A inhibits penile erection via alteration of histology in the rabbit

Fracture With Urethral Injury: Evaluation by Retrograde Urethrogram

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