There are several
different
approaches to hernia repair nowadays and some can be MUCH more
successful
than others.
| WHATEVER method is used
to repair a hernia, it requires two basic steps. 1. To push back the protruding bulge, ie return the intestine to where it belongs, inside the peritoneal cavity - and 2. To close the 'window' through which it came out in the first place. |
The original technique
used across the world, including the UK until relatively recently was to admit the
patient
to hospital, for a few days and, under general
anaesthesia, the surgeon would push back the bulge of peritoneum
through
the opening and then close the defect by stitching one side firmly to
the
other. Because
the patient depends upon this stitching for the rest of his life to
hold
the abdominal wall closed, the surgeon would normally have to place
several
stitches, under a degree of tension in the deep tissue, repeating the
process
until he is satisfied that the join will hold.
Unfortunately,
this stitching
distorts sensitive tissue. This will cause tension and subsequent pain
with all movements (including coughing and sneezing). |
A further problem of this technique of hernia repair is that a significant number of cases (estimated at up to 10 percent or more of all cases) will recur by virtue of the internal scar tissue becoming pulled out at some time in the patient's life. The repair of this recurrent hernia is therefore a larger operation than the first and the results proportionately more uncomfortable. In order to reduce the tension of the stitching, surgeons developed methods of stitching the tissue in layers, one above the other. This technique reduced a little of the pressure, but resulted - by definition - in more stitching through the patient's tissue. Later techniques involve placing or stitching a 'patch' over the hernia, it having already been stitched together, or stapling, or otherwise closing the defect. However the stitching is done, tissue distortion is inevitable with consequent pain for the patient. |
'Keyhole'
Surgery.| Another
method under much discussion recently, is the 'laparoscopic' technique with which the surgeon inserts small tubes into the abdominal cavity, one being a video camera lens, and operates while looking at the image on a television monitor. This approach is rather more technically difficult for surgeons to perform successfully and without accidents than other techniques. The sole advantage of this technique is that only the smallest of incisions are required (so-called "Keyhole" surgery). |
In order that the surgeon may manoeuvre inside the patient and see what he is doing, the patient's abdomen has to be pumped up with compressed carbon dioxide gas. Because the surgeon works 'remotely' with these instruments and guided only by what he sees on a TV screen, he has less control than otherwise, particularly with difficult or complex cases. There are many reports of serious accidents to neighbouring organs. The repair is achieved by firing a staple gun through mesh into the muscle tissue. This technique is performed under general / spinal anaesthesia. |
| A significant school of thought exists that does not favour this technique | |
|
The National Institute for Clinical Excellence published a recommendation * to the surgical profession that Laparoscopy ('keyhole surgery') is NOT recommended for primary groin hernia repair. This concurs with the view held at The British Hernia Centre and certain other hernia experts in the USA over the last two decades. The
Royal College
of Surgeons
had previously said: *
Subsequently amended suggesting a qualified use for keyhole surgery in
selected cases may be considered (caveats attached)
|
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| A number of surgeons felt
that none
of the above methods was entirely desirable and over several years an
altogether
different technique was devised. This formed the basis for the method
now
perfected at The British Hernia Centre over thousands of cases.
Under local anaesthesia, a small incision is made over the site of the hernia. The peritoneal bulge is returned to where it belongs, as before, but the repair is achieved by placing a piece of fine (inert and sterile) mesh at the opening in the tissue. This is firmly held in place and the outer incision closed. The whole operation takes minutes to perform. Unlike other techniques, even those now using mesh, our approach does not require any stitching together of the muscle tissue at all, thus eliminating the tension induced by other methods. The healing process starts to take place immediately in that - sensing the presence of the fine mesh - the muscle and tendon send out fibrous tissue which grows around and through the |
mesh, incorporating it in
a way similar
to the placing of the steelwork inside reinforced concrete.
It is not a 'patch' stuck on the outside, but a total, tension-free reinforcement inside the abdominal wall. The results are also similar to the concrete analogy, in that the 'mechanical load' is spread over the whole area, precisely at the area of weakness, rather than on high pressure points of stitching through the deep, sensitive tissue with older methods. When performed correctly, this technique requires no bed, even after the operation. The patient is able to walk away from the theatre immediately after surgery. The technique was originally devised as a much-needed alternative to re-stitching failed hernia operations (ie recurrences) done the old way. It was then realised that, as the technique was so very successful with recurrent hernias, it should be used for 'first-time' repairs and thus avoid recurrences altogether. |

(To
bypass information on complex cases)
Recurrent,
Incisional and Other Complex Hernias
Hernia
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