Thursday, January 20, 2011

SUTURE TECHNIQUES AND COMMON TYPES OF SUTURES

SUTURE SIZES

Size denotes the diameter of the material. Stated numerically, the more zeros (0's) in the number, the smaller the size of the strand. As the number of 0's decreases, the size of the strand increases. The 0's are designated as 5-0, for example, meaning 00000 which is smaller than a size 4-0. (NOTE: Physicians will often say what sounds like "oh vicryl sutures" for instance -- by this they mean 0 Vicryl (zero Vicryl) not the letter "O")

USP

Diameter

Tensile Strength

(surgeon's knot)

4-0

0.2mm

7.5N

3-0

0.3mm

12.3N

2-0

0.35mm

19.6N

0

0.4mm

22.3N

1

0.5mm

37.3N

Types of Suture Material:

Vicryl

Braided synthetic absorbable suture
Polyglactin 910
Retains 70% of initial strength at 10 days and 30% at 20 days
Complete absorption in 60 - 90 days

Coated Vicryl

As Above
Coated with a mixture of calcium stearate and polyglactin 370
Maintains 100% strength for ~ 45 days and then decreases to 70% by ~ 50 days
Needle sizes commonly used;
1 36mm taper
2/0 26mm cutting edge
3/0 22mm cutting edge

PDS

Mono-filament synthetic absorbable suture
Polydioxalone
Retains 70% of initial strength for ~ 21 days and is reduced to 50% at ~ 35 days
Absorption usually complete within 180 days
Results in minimal tissue reaction
Needle sizes commonly used;
1 40 or 26mm needle

Catgut

Intestinal submucosa of sheep and intestinal serosa of cattle
Retains tensile strength for ~ 10 days

Chromic Catgut

(Chromatised) retains tensile strength for 20 - 40 days
Both forms of catgut result in a moderate tissue reaction

Proline

Non absorbable synthetic mono-filament suture
Polypropylene (extruded)
Low tissue reaction and easy tissue passage
Needle sizes commonly used;
2/0 & 3/0 26mm cutting edge
6/0 13mm (epitendon)
8/0 6.35mm (digital nerve)

Nylon

Non absorbable synthetic mono-filament suture
Needle sizes commonly used;
5/0 18.7mm cutting edge

Ethibond

Braided non absorbable synthetic suture
Polyester coated with polybutilate (also a polyester) for lubrication to aid tissue passage with good tissue qualities and tensile strength
Needle sizes commonly used;
1 24mm cutting edge

Silk

Natural silk is made up 70% of protein fibre and 30% extraneous material such as gum
Processing involves degumming
Protein make up and extraneous material results in increased tissue reactivity

Steel

316L - SS Stainless steel
Inert with virtually no tissue reaction
Difficult to handle and knot


6 comments:

shipaddict said...

"Proline" should be spelled Prolene.

Unknown said...

For plain catgut wound support is 7-10 days & for Chromic it is 17-21 days.
Source: Types of Absorbable Sutures

Unknown said...

There are several suture removal techniques for removing different suture types.

Unknown said...

Thanks for sharing good contents on Vicryl and other types of sutures. Hope it will help anyone to know about the sutures and its uses.

Anonymous said...

I was suffering from a severe headache and even the potent pain killers only gave me slide relief. I went for a CT Scan plus MRI and doctors found a ‘blood clot’ in the brain. Neurosurgery was suggested and had a stroke while going through angiogram. My life was miserable until Dr Itua herbal made medicine was introduced to me. I took Dr Itua Herbal Made Capsule Plus 3 times daily and within 20 days I saw big relief from the pain and within a few weeks I was able to walk and gain back my mobility. The following MRI confirmed the ‘blood clot’ had disappeared and the doctors were very surprised and said it was a ‘miracle’. Now, I am doing Cardio  2 times a week.You can contact Dr Itua herbal center on drituaherbalcenter@gmail.com his herbal made also cure Herpes Virus,HPV,ALS,MS,Hepatitis,Diabetes,HIV,Cancer,Parkinson and so many other diseases humans can have.

aki said...

dental suture
top dental suture
best dental suture
dental suture in india
Silk Dental suture
top Silk Dental suture
Best Silk Dental suture
Numbe one Silk Dental suture
Numbe one Silk Dental suture in bentley
Numbe one Silk Dental suture india
Silk Dental suture
one Silk Dental suture in bentley
one Silk Dental suture bentley
Dental suture in bentley
Silk Dental suture in bentley
top Silk Dental suture in bentley
Silk Dental suture in bentley india
top one Silk Dental suture in bentley india
dental suture bentley
india dental suture bentley
bentley dental-sutures
dental suture
Top in dental suture