Surgical trial implant

A trial spinal implant, comprising:

• a trial implant member formed from a radio-lucent material and having a size and shape configured to fit between adjacent vertebral bodies, the trial implant member including a superior bone-contacting surface and an inferior bone-contacting surface;
• at least one marker formed from a radio-opaque material and associated with the trial implant member such that, when the trial implant is positioned between adjacent vertebral bodies, the at least one marker provides at least one x-ray visible reference to indicate the position of the implant member with respect to the adjacent vertebral bodies.

A trial implant system, comprising:

• a plurality of implantable trial prostheses, each implantable prosthesis comprising
• a body formed from a radio-lucent material and having a size and shape adapted to fit within or adjacent to an anatomical structure, and
• at least one marker associated with the body and formed from a radio-opaque material, the at least one marker being configured to provide an x-ray visible reference to indicate the position and alignment of the body with respect to the anatomical structure when the implantable trial prosthesis is positioned within an anatomical structure.