Glass-ceramic implant in acetabular bone defect: an experimental study.
Extensive acetabular defects produced surgically in 25 dogs were repaired using A-W glass-ceramic blocks.  No dislocation of the femoral head, and no displacement or breakdown of the blocks was seen 1 year after surgery.  All dogs were able to run normally shortly after surgery, except for one that limped for a short time.  The failure load between the blocks and the bone had increased markedly 2 months after implantation.  The failure load/unit area was 33.2 kgw/cm 2 1 year after implantation.  We conclude that glass-ceramic supplementation of the acetabulum is successful experimentally, and that this may be a promising method for repair of large acetabular bone defects.
Yoshii
S
S
Department of Orthopaedic Surgery, Faculty of Medicine, Kyoto University, Japan.
Yamamuro
T
T
Nakamura
T
T
Oka
M
M
Takagi
H
H
Kotani
S
S
D000077:Acetabulum / Q000601:surgery*; D000818:Animals; D001672:Biocompatible Materials; D001696:Biomechanical Phenomena; D016025:Bone Transplantation; D002516:Ceramics; D004285:Dogs; D004434:Early Ambulation; D005500:Follow-Up Studies; D005898:Glass; D008422:Materials Testing; D019736:Prostheses and Implants