What preferences matter to hip/knee surgeons?

Physician preference items: what factors matter to surgeons? Does the vendor matter?  (Medical Devices: Evidence and Research)

http://youtu.be/JPvsaSw4waw
Background: The USA devotes roughly $200 billion (6%) of annual national health expenditures to medical devices. A substantial proportion of this spending occurs during orthopedic (eg, hip and knee) arthroplasties – two high-volume hospital procedures. The implants used in these procedures are commonly known as physician preference items (PPIs), reflecting the physician’s choice of implant and vendor used. The foundations for this prefe...