Radiographic evaluation of anterior cruciate ligament graft failure with special reference to tibial tunnel placement

1998 ◽  
Vol 14 (2) ◽  
pp. 206-211 ◽  
Author(s):  
LC Almekinders ◽  
JB Chiavetta ◽  
JP Clarke
Keyword(s):  
Anterior Cruciate Ligament ◽  
Special Reference ◽  
Graft Failure ◽  
Cruciate Ligament ◽  
Tibial Tunnel ◽  
Radiographic Evaluation ◽  
Tunnel Placement ◽  
Anterior Cruciate Ligament Graft ◽  
Anterior Cruciate

The effects of tibial tunnel placement and roofplasty on reconstructed anterior cruciate ligament knees

1995 ◽  
Vol 11 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Takeshi Muneta ◽  
Haruyasu Yamamoto ◽  
Toshiro Ishibashi ◽  
Shintaro Asahina ◽  
Shunich Murakami ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Cruciate Ligament ◽  
Tibial Tunnel ◽  
Tunnel Placement ◽  
Anterior Cruciate

Compaction of a Bone Dowel in the Tibial Tunnel Improves the Fixation Stiffness of a Soft Tissue Anterior Cruciate Ligament Graft

2005 ◽  
Vol 33 (5) ◽  
pp. 719-725 ◽  
Author(s):  
Stephen M. Howell ◽  
Phil Roos ◽  
Maury L. Hull
Keyword(s):  
Anterior Cruciate Ligament ◽  
Soft Tissue ◽  
Cruciate Ligament ◽  
Tibial Tunnel ◽  
Tendon Graft ◽  
Joint Line ◽  
Fixation Device ◽  
Yield Load ◽  
Anterior Cruciate Ligament Graft ◽  
Anterior Cruciate

Background Despite increasing attention on fixation of a soft tissue anterior cruciate ligament graft in the tibia, there have been no studies on the use of a bone dowel as a joint line fixation device for promoting fixation properties, especially stiffness at the time of implantation. Purpose To determine whether compacting a bone dowel into the tibial tunnel improves fixation stiffness, yield load, and resistance to slippage of a soft tissue anterior cruciate ligament graft. Study Design Controlled laboratory study. Methods A double-looped tendon graft was fixed at the distal end of the tibial tunnel with a WasherLoc in 24 calf tibias. The tibial tunnels were treated with or without a dowel of cancellous bone. The bone dowel was harvested from the tibial tunnel and then compacted into a tapered space anterior to the anterior cruciate ligament graft as a joint line fixation device. A cyclic load and measurement test was administered to determine fixation stiffness, yield load, slippage, and failure mode. Results The specimens with the bone dowel had 58 N/mm more stiffness (P =. 04); however, the yield load and resistance to slippage were similar in specimens with and without the bone dowel. Conclusions A bone dowel harvested from the tibial tunnel can be used as a joint line fixation device in series with a distal fixation method to improve initial fixation stiffness and increase the fit, which is known to enhance tendon graft-to-bone healing in the tibia.

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