Biomechanical Comparison of Fracture Risk Created by 2 Different Clavicle Tunnel Preparations for Coracoclavicular Ligament Reconstruction.

Background: An anatomic reconstruction of coracoclavicular (CC) ligaments typically requires drilling tunnels in the clavicle. An increase in fracture complications has been associated with graft tunnel position. A method of drilling clavicle tunnels that would better re-create anatomic function of the CC ligaments without increasing fracture risk would be an improvement.

Compression force and pullout strength comparison of bioabsorbable implants for osteochondral lesion fixation.

We conducted a study to characterize compression forces and pullout strengths of 4 commercially available bioabsorbable nails and screws in a synthetic bone model. A piezoelectric sensor was used to measure peak compression forces, and a material testing machine was used to measure maximum pullout strengths. The strongest compression force was found for SmartScrew (12.