United Orthopedic Corporation

Acetabular Preparation Cup trialing Once a proper acetabular cavity is established, place an Acetabular Cup Trial 3 to : (1) confirm the bone-implant congruency via the peephole on the trial; (2) verify the prepared acetabulum is truly hemispherical; and (3) check the stability of the trial cup before final implant insertion. Thread the appropriate trial cup onto the U-M II Cup Impactor 4 The same diameter trial of the last reamer is recommended to avoid destruction of press-fit mechanism. The profile of the trial cup is characterized as true hemisphere corresponded to the marked diameter. Before trialing, clean acetabular cavity and excise any protruded tissues. Control the trial cup to be inserted with 40°-45° abduction and 15°-20° anteversion, impact it into the cavity with a mallet (Fig. 4). Palpate the peripheral edge of the trial cup to ensure it is fully seated at an appropriate orientation. 2 3. Acetabular Cup Trial C/N varies by sizes 4. U-M II Cup Impactor 9206 - 1103 Fig. 4