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ssss1 Features of currently available barbed suture.

Barbed suture tradename Manufacturer Barb density/cm Barb directional Barb orientation Anchoring system Smooth suture size strength equivalence of size 3‐0 barbed^b Quill Angiotech Pharm. 10 Bi^a Helical N/A 4‐0 V‐Loc Medtronics 20 Uni Dual‐angle Welded loop 3‐0^b Stratafix spiral Ethicon No info Bi Helical N/A 4‐0 Stratafix symmetric Ethicon No info Uni Opposing Fixation tab N/A. Produced with solid core

^a Bidirectional sutures do not have a separate feature for anchoring, as they have needles at both suture ends, and suturing starts in the center of the incision and continues in bilateral direction.

^b Most barbed sutures are produced by cutting into a solid suture strand, rendering the barbed suture weaker than the parent strand. V‐Loc has size denominated by equivalent strength to smooth suture (i.e. a 3‐0 V‐Loc is as strong as a 3‐0 smooth suture), whereas others are keeping the size denomination of the parent strand. The surgeon needs to be aware of this as a 3‐0 barbed suture may only have the tensile strength of a 4‐0 smooth suture.