The effects of bone plug length and screw diameter on the holding strength of bone-tendon-bone grafts.
The effect of bone plug length and Kurosaka screw (DePuy, Warsaw, IN) diameter on graft holding strength of the bone-tendon-bone construct was determined. Random length porcine bone plugs were assigned to fixation with 7 or 9 mm Kurosaka screws. Peak load to failure was determined. There was a significant decrease in peak load to failure of the 5-mm long bone plugs compared with longer bone plugs. No difference was found between longer lengths of bone plug in either the 7- or 9-mm screw diameter groups. The 9-mm diameter screws significantly increased peak load to failure for both 1- and 2-cm bone plug lengths.
Pomeroy
G
G
Portland Orthopedic Foot and Ankle Group, Maine, USA.
Baltz
M
M
Pierz
K
K
Nowak
M
M
Post
W
W
Fulkerson
J P
JP
D000818:Animals; D016118:Anterior Cruciate Ligament / Q000601:surgery; D001863:Bone Screws; D016025:Bone Transplantation / Q000379:methods*; D007719:Knee Joint; D013314:Stress, Mechanical; D013552:Swine; D013710:Tendons / Q000637:transplantation*