WHAT IS THE URETHRAL RECONSTRUCTION
The diseases of the urethra
very often require the use of surgery. Urethral
strictures and urethral stenoses are treated by various techniques. The treatment
for urethral strictures include numerous options, such as dilation,
urethrotomy, stent and reconstructive surgical techniques and emphasized that
no one technique is appropriate for all stricture diseases. Dilation and
urethrotomy continue to be the most commonly used techniques, but they have a
high failure rate with recurrence in 47.6% of patients and many patients
progress to surgical repair. Persistent use of dilation or urethrotomy for the
treatment of urethral strictures may be the result of unfamiliarity with
literature and inexperience with urethroplasty surgery.
Open urethral reconstruction is regarded as the gold standard treatment for
urethral strictures. Nevertheless,
urethroplasty is not a routine operation and a lack of the necessary skills
should prompt a referral to a specialist skilled in urethroplasty.
THE URETHROPLASTY
There
are two types of urethral reconstruction. There are many surgical techniques
with or without grafts that we can perform to repair urethral strictures
and at the same time permit the aesthetic reconstruction of the glans and the
penis. Basically, the surgical technique for urethral reconstruction is
selected according to the etiology of the urethral stricture disease and must
also be based on the proper anatomic characteristics of the penile tissues to
ensure flap or graft take and survival.
Urethroplasty is a open surgical procedure for urethral reconstruction to treat
urethral stricture. Urethroplasty can be performed by 2
methods; primary repair which involves complete excision of the narrowed part
of the urethra. The proximal and distal patent parts are then rejoined. The
second method of Urethroplasty utilizes tissue transfer or
free graft technique. In this method, tissue is grafted from foreskin, or buccal mucosa and is used to enlarge the strictured (narrowed)
segment of the urethra.
Urethroplasty is performed under general
anesthesia. Two Urethroplasty techniques are popularly used:
- Anastomotic Technique - In this method of Urethroplasty, the narrowed
part of the urethra is cut and the proximal and distal parts of the urethra are
re-joined, a foley's catheter will be left in for the next 2 weeks to ensure
complete healing and repair. This method of Urethroplasty is used for small
urethral strictures i.e. less than 2
cm wide.
- Tissue Transfer - In this method of Urethroplasty, Skin and Tissue is
Grafted from a non-hair bearing part of the body like the buccal mucosa or
bladder mucosa. Free grafts like Full Thickness Skin Grafts or Split Thickness
Skin Grafts can be used for this purpose. Tissue Transfer Urethroplasty can be
also be carried out in 2 stages if sufficient local tissue is not available for
a Skin Flap Procedure and local tissue factors are not suitable for a free
graft one stage procedure.
Urethral surgery Definition Urethra wikipedia.org, Definizione Uretra wikipedia.org (spanish version), Definition Female Urethra by Bartleby.com, Definition Male Urethra by Bartleby.com, Phoenix Glossary, Strong Health, Dr. Greene.com, Pathology Outlines.com, Medline Plus, Loyola University Chicago, Nucleus Medical Art, Definition Urethra of Answers.com, Emedicine.com, MedicineNet.com, National center for biotechnology Information, Digital Urology Journal, AJP Renal Physiology, Cáncer de la uretra - National Cancer Institute - US National Insitutes of Health (Spanish Version), Lesión traumática de la vejiga y la uretra - (Spanish Version) National Library of Medice. US, Reparación quirúrgica de la uretra y la vejiga
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