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The porous coated cylindrical  stem are one of the most popular option in the set of hip revison surgery. The poupose of this study is present the clinical and radiographic results of a group of patients treated with this stem. Material and Methods: Between 1997 and 2010, we retrospectively evaluated 150 stem in 148 patients. The indication for revision was aseptic loosening in 88 cases (58.6%), septic loosening in 41 cases (27.3%), periprosthetic fracture in 14 cases (9.3%), failed hip ostesynthesis in 4 cases (2.6%) and stem fracture in 3 cases (2%). We followed the patient on average for 7.7 years. Results: We achived bone-ingrowth fixation in 135 patients (90 %,),  fibrous tissue fixation in 12 (8%) and unstable fixation in 3 (2 %). The mean Harris hip score improved to 92 points at last follow-up. Three stem were revised (2%). One patient had revision becouse of stem loosening. The other two becouse of deep infection required a 2 staged revision.  Three patient (2%) had dislocation and was treated succesfully with closed reduction. Conclusion :  The porous coated cylindrical stem is a predictable technique with excellent survival rates  in  the set of  revision hip surgery.

Utilización de tallos femorales porosos extendidos en revisiones de cadera.[Use of extensively porous femoral stem in revision hip arthroplasty].