Formation of structural grafts from cancellous bone fragments.
Autogenous cancellous bone fragments can be compressed rapidly during surgery to create reproducible load-bearing grafts. Of the 32 grafts tested, 10 were constructed of composite cortical-cancellous bovine bone and 22 of cancellous human bone. Compressed composite bovine grafts and compressed human cancellous grafts supported average axial compressive loads of 2148 N and 960 N, respectively. Compared to iliac crest grafts, compression grafts may have better load-bearing capabilities and greater reproducibility. Potential applications include trauma, delayed unions, arthrodesis, and spinal fusions.
Bonutti
P M
PM
University of Arkansas, Little Rock, USA.
Cremens
M J
MJ
Miller
B G
BG
D000368:Aged; D000369:Aged, 80 and over; D000818:Animals; D019645:Arthroplasty, Replacement, Knee / Q000379:methods; D001696:Biomechanical Phenomena; D016025:Bone Transplantation / Q000379:methods*; D002417:Cattle; D005260:Female; D006085:Graft Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000379:methods*; D010316:Particle Size; D019737:Transplants; D016474:Weight-Bearing