Abstract
There are practical and fiscal benefits of head–neck modularity. Taper corrosion occurs with all head sizes and rarely necessitates revision. The role of design and manufacturing variables continues to be investigated and debated. The utilization of ceramic heads has increased but the cost–utility ratio needs scrutiny. Changes in surgical practice, including smaller incisions and the increased use of cementless, tapered titanium stems are challenges to consistent and adequate taper assembly. Surgical taper assembly is variable and important regardless of the head material. Standardization of surgical taper assembly is desirable for all head materials: taper assembly has been implicated in ceramic head fracture as well as in fretting and corrosion.
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