What material are most absorbable sutures made of?

Most absorbable sutures are indeed made from synthetic materials such as polyglycolic acid, polylactic acid, or their derivatives. These synthetic polymers have been developed to provide specific properties that are advantageous in surgical settings, including predictable absorption rates and appropriate tensile strength. Synthetics can be engineered to absorb over a defined period, which is crucial in allowing the body to heal while removing the foreign material.

While natural fibers, such as catgut, were historically used for absorbable sutures, the shift towards synthetic materials has occurred due to their superior performance characteristics, such as lower variability in absorption times and reduced risk of tissue reaction. Metallic threads are used in non-absorbable sutures, providing long-term support when needed, and organic materials do not typically lend themselves to the properties required for sutures. Thus, the preference for synthetic materials in the manufacturing of absorbable sutures addresses both performance and biocompatibility, making them the standard choice in modern surgical practice.