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MIÉRCOLES / WEDNESDAY<br />

102<br />

seven hips were followed for an average 45 months (range<br />

24-72). Initial distal fixation was achieved, and the proximal<br />

segment was chosen to optimize hip center of rotation.<br />

RESULTS<br />

Clinically, mean Harris hip score improved from 36 to 84<br />

(range 54-99). Radiographically, 94 hips were considered<br />

stable, with no circumferential lucencies at the distal fixation<br />

surface. Lucencies around the proximal segment were<br />

common but did not compromise performance. Two hips<br />

with type 3C deficiency migrated and required reoperation,<br />

and one additional hip with type 3C defienciecy developed<br />

a periprosthetic fracture that required revision. They were<br />

each successfully revised to a larger implant of the same<br />

design. Five other hips had non-progressive migration of 1-<br />

2 mm. One stem in a 320 lb man fractured, and was revised<br />

to a larger implant. Ten hips dislocated, with 6 being revised<br />

by altering the modular proximal segment with no further<br />

sequelae. There were 3 periprosthetic fractures successfully<br />

treated with ORIF.<br />

CONCLUSIONS<br />

Distal fixation is well maintained with this distally fluted,<br />

tapered titanium stem in the face of severe distal bone loss.

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