Changes

There are several systems of sizing suture material; the '''metric system''' which indicates the diameter of the material, and the '''USP (United States Pharmacopeia) system''' which is more commonly used. With synthetic materials and catgut the USP system sizes these two classes of material differently; for example, 3-0 ‘Vicryl’ is the equivalent to 4-0 catgut in terms of the actual diameter of the suture material.

There are several systems of sizing suture material; the '''metric system''' which indicates the diameter of the material, and the '''USP (United States Pharmacopeia) system''' which is more commonly used. With synthetic materials and catgut the USP system sizes these two classes of material differently; for example, 3-0 ‘Vicryl’ is the equivalent to 4-0 catgut in terms of the actual diameter of the suture material.