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J Arthroplasty ; 25(2): 203-7, 2010 Feb.
Article in English | MEDLINE | ID: mdl-19264443

ABSTRACT

The long-term results of Hylamer implants have not been reported previously. Clinical and radiographic results of a consecutive series of 43 patients (45 hips) who had primary total hip arthroplasty using Hylamer liners were compared with those of 37 patients (43 hips) who had conventional liners after 10-year follow-up. The linear wear rates for Hylamer and conventional polyethylene acetabular liners were 0.21 and 0.20 mm/y, respectively. The number of pelvic osteolytic lesions and their size detected on plain radiographs were significantly greater for Hylamer liners. Seven Hylamer hips were revised or are pending revision for osteolysis (16%) compared with 1 control hip. Close radiographic surveillance of patients who have Hylamer liners and evidence of osteolysis found on plain radiographs is warranted.


Subject(s)
Arthroplasty, Replacement, Hip/adverse effects , Arthroplasty, Replacement, Hip/instrumentation , Hip Prosthesis , Osteolysis/etiology , Polyethylene , Prosthesis Failure , Acetabulum/diagnostic imaging , Acetabulum/surgery , Adult , Aged , Aged, 80 and over , Case-Control Studies , Female , Follow-Up Studies , Hip Joint/diagnostic imaging , Hip Joint/surgery , Humans , Longitudinal Studies , Male , Middle Aged , Prevalence , Radiography
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