Avaliação de método para reconstrução acetabular com uso de enxerto ósseo homólogo e implante cimentado

Abstract

Avaliação de método para reconstrução acetabular com uso de enxerto ósseo homólogo e implante cimentado * Evaluation of a method of acetabular reconstruction using homologous bone graft and cemented implant

Osteointegração e sucesso em revisão acetabular de artroplastia total de quadril com enxerto estrutural homólogo: seguimento médio de 9,6 anos

“…Our service started the use of homologous graft in THAR in the 1980s, with the subsequent publication of the results. 6 7 8 The analysis of our cases and the result of the literature allows the verification of homologous bone graft consolidation with possible osseointegration in most cases, allowing a stable reconstruction. 2 5 The use of bone graft makes it possible to restore the center of hip rotation, obtain implant stability, restore the acetabular integrity and bone stock, facilitating future revisions.…”

“…According to the classification by D'Antonio, 12 39 combined defects (88.6%) were observed. The size of the bone defect in millimeters 6 was on average 62.48 mm. The radiographic characteristics of the patients are described in Table 2 .…”

“…The classification of the acetabular bone defect was preoperatively evaluated using the Paprosky 14 and D'Antonio methods, 12 in addition to the size of the defect in millimeters. 6…”

“…The reconstruction was considered a failure when there was loosening of the implant with migration > 5 mm in any direction, and/or the progression of radiolucent lines around the acetabular component > 2 mm wide. The cases of failure were compared with the others (success) seeking correlation with the classification of the bone defect according to Paprosky et al 14 and D'Antonio et al, 12 the size of the bone defect in millimeters, 6 the largest thickness of the graft in millimeters, the percentage of implant coverage by the graft, osseointegration of the graft, 15 the presence of graft resorption and osteolysis, in addition to its configuration. 18…”

Numerical evaluation of reduction of stress shielding in laser coated hip prostheses

“…For these reasons, total hip arthroplasty is being widely employed in the treatment of arthrosis, osteonecrosis, spondylitis, osteoarthritis or fracture, among other diseases that impair this joint, with good short term results with respect to pain relief and recovery of function [3][4][5] . However, several complications linked to this procedure, such as implant migration, aseptic loosening or osteolysis, are still common in the medium and long term 6,7 . This emphasizes the need for revision surgery, especially in today's context of longer life expectancy and with younger patients requiring hip replacement surgery 8,9 .…”