Initial fixation strength of a hybrid technique for femoral ACL graft fixation

2006 ◽  
Vol 14 (11) ◽  
pp. 1122-1129 ◽  
Author(s):  
Andre Weimann ◽  
Thore Zantop ◽  
Mirco Herbort ◽  
Michael Strobel ◽  
Wolf Petersen
Keyword(s):  
Graft Fixation ◽  
Fixation Strength ◽  
Hybrid Technique ◽  
Acl Graft ◽  
Initial Fixation

Initial fixation strength of a new hybrid technique for femoral ACL graft fixation: the bone wedge technique

2006 ◽  
Vol 127 (9) ◽  
pp. 769-775 ◽  
Author(s):  
Mirco Herbort ◽  
Andre Weimann ◽  
Thore Zantop ◽  
Michael Strobel ◽  
Michael Raschke ◽  
...  
Keyword(s):  
Graft Fixation ◽  
Fixation Strength ◽  
Hybrid Technique ◽  
Acl Graft ◽  
Initial Fixation ◽  
Wedge Technique

Evolving Techniques in ACL Graft Fixation

2013 ◽  
Vol 28 (2) ◽  
pp. 119
Author(s):  
Michael Jagodzinski ◽  
Christian Krettek
Keyword(s):  
Graft Fixation ◽  
Acl Graft

An Experimental Study on Initial Fixation Strength in Transpedicular Screwing Augmented With Calcium Phosphate Cement

Spine ◽  
2009 ◽  
Vol 34 (20) ◽  
pp. E724-E728 ◽  
Author(s):  
Taiga Masaki ◽  
Yutaka Sasao ◽  
Takehiko Miura ◽  
Yoshiaki Torii ◽  
Atsushi Kojima ◽  
...  
Keyword(s):  
Experimental Study ◽  
Calcium Phosphate ◽  
Calcium Phosphate Cement ◽  
Fixation Strength ◽  
Initial Fixation

scholarly journals Initial Fixation Strength of Flexible All-Inside Meniscus Suture Anchors in Comparison to Conventional Suture Technique and Rigid Anchors

2004 ◽  
Vol 32 (4) ◽  
pp. 863-869 ◽  
Author(s):  
Thore Zantop ◽  
Ann Katleen Eggers ◽  
Andre Weimann ◽  
Joachim Hassenpflug ◽  
Wolf Petersen
Keyword(s):  
Suture Technique ◽  
Fixation Strength ◽  
Suture Anchors ◽  
Meniscus Suture ◽  
Initial Fixation

scholarly journals Balancing Rigidity and Safety of Pedicle Screw Fixation via a Novel Expansion Mechanism in a Severely Osteoporotic Model

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Thomas M. Shea ◽  
James J. Doulgeris ◽  
Sabrina A. Gonzalez-Blohm ◽  
William E. Lee ◽  
Kamran Aghayev ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Pedicle Screw ◽  
Pedicle Screws ◽  
Pedicle Screw Fixation ◽  
Cortical Layer ◽  
Fixation Strength ◽  
Osteoporotic Bone ◽  
Pullout Strength ◽  
Initial Fixation ◽  
Increased Risk

Many successful attempts to increase pullout strength of pedicle screws in osteoporotic bone have been accompanied with an increased risk of catastrophic damage to the patient. To avoid this, a single-armed expansive pedicle screw was designed to increase fixation strength while controlling postfailure damage away from the nerves surrounding the pedicle. The screw was then subsequently tested in two severely osteoporotic models: one representing trabecular bone (with and without the presence of polymethylmethacrylate) and the other representing a combination of trabecular and cortical bone. Maximum pullout strength, stiffness, energy to failure, energy to removal, and size of the resulting block damage were statistically compared among conditions. While expandable pedicle screws produced maximum pullout forces less than or comparable to standard screws, they required a higher amount of energy to be fully removed from both models. Furthermore, damage to the cortical layer in the composite test blocks was smaller in all measured directions for tests involving expandable pedicle screws than those involving standard pedicle screws. This indicates that while initial fixation may not differ in the presence of cortical bone, the expandable pedicle screw offers an increased level of postfailure stability and safety to patients awaiting revision surgery.

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