Helysis® PLLDA + β-TCP Interference Screw

Helysis® PLLDA + β-TCP Interference Screw is a bioabsorbable interference fixation implant designed for graft fixation in ligament reconstruction procedures such as ACL repair. It provides direct compression of soft tissue or bone–tendon–bone grafts within the bone tunnel, ensuring stable primary fixation through interference mechanics and secure graft-to-bone contact during the early healing phase.

Category: Knee Implants

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Manufactured from a composite of PLLDA (Poly-L-Lactic Acid) and β-TCP (Beta Tricalcium Phosphate), the screw offers initial mechanical strength with gradual bioabsorption and osteoconductive support. The β-TCP component promotes bone integration, while PLLDA ensures controlled degradation and sustained fixation stability under cyclic loading. Available in diameters ranging from 6 mm to 11 mm and lengths from 20 mm to 35 mm, the implant accommodates varying tunnel dimensions and graft sizes while eliminating the need for long-term hardware retention.