Abstract：
BACKGROUND:There are concerns with regard to the femoral fixation in cementless total hip arthroplasty in elderly patients. We report a retrospective analysis of clinical and radiological results of uncemented metaphyseal fit modular stem in elderly patients irrespective of anatomic characterstics of proximal femur. MATERIALS AND METHODS:This study reviews the outcomes of 60 primary hip replacements using a metaphyseal fit modular stem (third-generation Omniflex stem) conducted in 54 patients, of age 75 years or older. After a mean follow-up of 10,4 years, complete clinical and radiographic records were available for 52 hips of 48 patients. The patients were evaluated by Harris Hip Score (HHS). RESULTS:There was a significantly improved pain score and Harris Hip Score (41,6 to 83,2). Six stems (11.53%) were revised: four because of periprosthetic fracture; one stem was well fixed, but presented a large osteolytic lesion in the metaphyseal area and the last stem was revised because of aseptic loosening. Stem survival taking aseptic loosening as the end-point was 98%. Bone atrophy in the proximal femur caused by stress shielding was observed in 39 stems (75%), but there was no case of subtrochanteric stress shielding. Moreover, atrophy appeared within two years postoperatively, with no extension thereafter. CONCLUSIONS:We achieved good clinical and radiographic results by uncemented metaphyseal fit femoral stem regardless of patient's age and femoral canal type.
journal_name
Indian J Orthopjournal_title
Indian journal of orthopaedicsauthors
De la Torre BJ,Chaparro M,Romanillos JO,Zarzoso S,Mosquera M,Rodriguez Gdoi
10.4103/0019-5413.80328subject
Has Abstractpub_date
2011-07-01 00:00:00pages
351-8issue
4eissn
0019-5413issn
1998-3727pii
IJOrtho-45-351journal_volume
45pub_type
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