The AOS PHP is indicated for fractures, fracture dislocations, osteotomies, and non-unions of the proximal humerus. The PHP is an anatomically designed, low profile, titanium locking plate and screw system.
It is designed to treat periarticular or intra-articular fractures of the proximal humerus. The anatomic shape and fixed screw take into account the current demands of surgeons for appropriate fixation, fatigue strength, and minimal soft tissue damage. Locking plates provide improved stability, even in patients with poor bone quality, while reducing screw- loosening. Loss of screw purchase in the bone can result in loss of fracture reduction. Locking plates and screws may also help to reduce the risk of avascular necrosis as the locking plate does not need compressive contact with the bone in order to maintain fracture reduction.