Bovine bone grafting in occipito-cervical fusion for atlanto-axial instability in rheumatoid arthritis.
case_series · Level IV
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Abstract
Bovine bone chips (Surgibone) were used in occipito-cervical fusion in nine patients with atlanto-axial instability due to rheumatoid arthritis. The patients were examined with CT 12-15 months after surgery. Graft resorbtion was observed in one patient. The other 8 patients showed preserved grafts, in most cases the grafts appeared to be in contact with the underlying bone. One patient was revised, and at the grafted site a bony bridge was found. In conclusion, the use of bovine chips in posterior occipito-cervical fusion will not lead to predictable bone union. However, there seem to be exceptions to that rule.
Medical subject headings
- Arthritis, Rheumatoid
- Atlanto-Axial Joint
- Bone Transplantation
- Joint Instability
- Spinal Fusion