Utomo Andi Pangnguriseng, Shinji Imade, Satoshi Furuya, Koichiro Nakazawa, Kazuma Shiraishi, Masaya Sato, Toshihiko Kawamura, Yuji Uchio
BACKGROUND: When a pilot hole is made prior to a screw's insertion into bone, the same drill bit is used irrespective of the bone quality. However, osteoporotic bone is fragile and this may affect the hole diameter, which is of particular concern in cancellous bone. In this study, the relationship between bone density and drill-hole diameter was investigated assuming a pre-drilling process in screw-only osteosynthesis in the metaphysis and epiphysis. METHODS: Two types of drill bit (triple-flute [T] and quadruple-flute [Q]) with different shapes and diameters were prepared: type T bits with 3...
April 17, 2024: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association