Abstract
Revision surgeries of the acetabulum associated with bone loss, are a complicated task. Acetabular reconstruction with use of morselized allogenic cancellous bone graft and the Burch-Schneider cage can be highly successful in management of massive acetabular deficiencies in revision hip arthroplasty.
The most serious problems are caused by defects of the types IIIA and IIIB as per Paprosky classification (type III. and IV. according to AAOS). In our department we use the Burch-Schneider ring since 1994.
Anti-protrusion cages in combination with bone grafts can achieve sufficient bone augmentation, the construct helps to restore the centre of the hip to its proper anatomical position. The implant supports the integration of bone grafts due to reduced mechanical stress.
Burch-Schneider anti-protrusion cage is comparable to other implants of this type with regard to the long term survival. In this paper we summarize our experience with the implant and review data from recent literature.