Cemented calcar replacement varying height trial

Details Cemented calcar replacement varying height trial Cemented calcar replacement varying height trial

1997-03-26

1999-01-19

Isabella, David J.

Surgery

Instruments

Orthopedic instrumentation

623 16, A61B 1756, A61F 228

Patent

active

058609822

ABSTRACT:
A calcar trial includes a stem having a proximal end and a distal end, and a body. The body is engaged with the stem near the proximal end of the stem and is slidable with respect to the stem. A locking mechanism inhibits movement of the body with respect to the stem when desired. A collar extends radially outward from the stem to surround a portion of the body. The body and stem are configured so that the diameter of the calcar trial at a point between the collar and the distal end of the stem increases as the body is moved toward the distal end of the stem and decreases as the body is moved away from the distal end of the stem. Additionally, the proximal end of the stem can include opposed notches that are egagable by a forked tool.

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Brochure entitled PERFECTA PDA Calcar, dated Oct. 1995.
Howmedica hnr brochure, including article entitled Head/Neck Replacement Surgery in Hip Fractures of the Elderly, by Ronald Joseph, M.D., Ph.D. , Orthopaedic Surgeon, Good Samaritan Hospital, San Jose, California, pp. 2-15, .COPYRGT.Jul. 1993.
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