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Acta Ortopédica Brasileira

Print version ISSN 1413-7852On-line version ISSN 1809-4406

Abstract

DRUMOND, Sérgio Nogueira; PAIVA, Edson Barreto; ALMEIDA, José Paulo Sabino de  and  CAMPOS, Leandro Vaz de Melo. Total hip arthroplasty with PCA (Porous Coated Anatomic) prosthesis. Acta ortop. bras. [online]. 2001, vol.9, n.2, pp.13-20. ISSN 1809-4406.  http://dx.doi.org/10.1590/S1413-78522001000200002.

Between 1988 and 1993 we performed 27 hip arthroplasties with the PCA prosthesis (Porous Coated Anatomic) in 26 patients. The average duration of the follow-up was nine years. We excluded seven hips from this review: one due early deep infection, two died of unrelated cause, and four were lost to follow-up evaluation. The average age at surgery was 53 years. The preoperative diagnosis was primary osteoarthritis in nine patients, secondary osteoarthritis in seven patients, osteonecrosis in six patients and inflammatory arthritis in four patients. The patients were analysed clinically, radiographically and subjectively. The X-Rays were studied for the occurrence of osteolysis, migration or loosening of the cup, wear of the polyethylene, beads shedding, subsidence or loosening of the stem, stress shielding, periosteal reaction and distal cortical hypertrophy. Seventeen hips (85%) were rated clinically good results. Three hips were rated poor (15%) due migration of the cup in two cases and wear of the polyethylene in one case. There were concordance between the clinical and the subjective results. However several radiographic findings were not related to poor results.

Keywords : Arthroplasty; Hip; Prosthesis.

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