UNILATERAL LAMINOPLASTY IMPLANTS

摘要

Implants (1, 30) for maintaining a distance between cut spinal bones (10) are disclosed. The implants (1, 30) are made of metal, polymer or bone allograft having ends (6A, 6B) configured to conform to the cut bone ends (10). The implants ends (1, 30) have hollow regions (4) for packing osteogenic material. The implant ends (6A, 6B; 32A, 32B) have surface projections to reduce slippage. Implants (1, 30) made of bone allograft also have spine contacting ends (6A, 6B; 32A, 32B) made of demineralized bone to speed fusion of spine (10) and implant (1, 30); they may also have bone flaps (31A, 31B) to fix the implant (30) to the spine (10). Methods of using the implants (1, 30) are also disclosed.