Bilok is a synthetic calcium composite technology used for interference screws in the reconstruction of anterior and posterior ligaments and suture anchors for rotator cuff repairs.

Produced through a proprietary process, it delivers a uniform distribution of β tri-calcium phosphate particles, fully integrated into a poly-L-lactic acid (PLLA) matrix to maximise component integrity. Bilok utilises a low molecular weight and low crystalline PLLA for improved degradation times and hydrophilicity.


Hear what Dr Kimball has to say about Bilok

Frequently asked questions
What is Bilok indicated for?

The Bilok Screw is indicated for use in Anterior Cruciate Ligament (ACL) reconstruction procedures where the surgeon:

  • Places the graft in tibial and/or femoral tunnels; and
  • Inserts screws between the tunnel wall and graft to hold the graft in place.

The Bilok Screw is used to provide interference fixation of patellar bone-tendon-bone grafts In ACL reconstruction.
The Bilok Screw is used to provide interference fixation during femoral and/or tibial fixation in ACL reconstruction using soft tissue graft (semi-tendonosis gracillis).

What is Bilok contraindicated for?
  • The device should not be used where there is any known contraindication to arthroscopic surgery.
  • The material is biodegradable, it should not be used where normal healing processes will not replace its function within its known duration.
  • The device should not be used in active infection or where there is any other contraindication to knee ligament repair or reconstruction.
  • The device should not be used in patients with any known allergy or reaction to plastic material.

References and regulatory statements

1.  Barber, F.A. and W.D. Dockery, Long-term absorption of beta-tricalcium phosphate poly-L-lactic acid interference screws. Arthroscopy, 2008.24(4): p. 441-7.

For indications, contraindications, warnings and precautions see Instructions for Use.

©2020, Biocomposites and Bilok are trademarks/registered trademarks of Biocomposites Ltd. All rights reserved. No unauthorized copying, reproduction, distributing or re-publication is allowed unless prior written permission is granted by the owner, Biocomposites Ltd.

Patents Granted: EP 1436019 B1, US 8563024, CN ZL02825134.2, EP 1954199 B1, US 8409251