High rate of ceramic sandwich liner fracture.

Background: Ceramic bearing surfaces for THA were introduced to reduce the risk of wear. However, owing to liner fracture in some of the early series and presumption that the fractures were the result of the modulus mismatch of the implant and the bone, a ceramic sandwich liner with lower structural rigidity was introduced. Fractures of these devices also were reported subsequently, although the incidence is unclear and it is unknown whether there are any risk factors associated with the fractures.

Arthroscopic treatment of distal clavicle fractures: a technical note.

This article describes a new technique for the arthroscopic treatment of distal clavicle fractures. This technique requires the use of posterior and anterior standard arthroscopic portals. The base of the coracoid process is exposed through the rotator interval.