Howell 65° Tibial Guide

• Aids in the prevention of PCL impingement

• Aids in the prevention of roof impingement without performing roofplasty

• Replication of the tension pattern of the intact ACL
  

The reliability of and accuracy of the Howell 65º Tibial Guide is determined by the 3-D function of the tip of the guide.^1,2,3 The tip of the guide assists the surgeon in the prevention of PCL impingement, the prevention of roof impingement, and the customization of the placement of the tibial tunnel for variability in notch anatomy, roof angle, and knee extension between patients.

^{1 Cuomo, P.; Edwards, A.; Giron, F.; Bull, A. M.; Amis, A. A.; and Aglietti, P.:Validation of the 65 degree Howell guide for anterior cruciate ligament reconstruction. Arthroscopy, 22(1): 70-5, 2006.
2 Howell, S. M., and Lawhorn, K. W.: Gravity reduces the tibia when using a tibial guide that targets the intercondylar roof. American Journal of Sports Medicine, 32(7): 1702-10, 2004.
3 Simmons, R.; Howell, S. M.; and Hull, M. L.: Effect of the angle of the femoral and tibial tunnels in the coronal plane and incremental excision of the posterior cruciate ligament on tension of an anterior cruciate ligament graft: an in vitro study. Journal of Bone and Joint Surgery Am, 85-A(6): 1018-29, 2003.} 

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