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Quantification of the perfusion of the anterior cruciate ligament and the effects of stress and injury to supporting structures

Division of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri

John A. McCarthy, MD

Division of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri

Michael E. Joyce, MD

Division of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri

Kosuke Ogata, MD

Division of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri

Robert A. Shively, MD

Division of Orthopedic Surgery, Washington University School of Medicine, St. Louis, Missouri

The perfusion of the normal ACL was quantitated using the hydrogen washout technique in a canine model. This was compared to the perfusion of the synovium in the suprapatellar pouch. Changes in the ACL perfusion were quantitated after the application of anterior stress, division of the infrapatellar fat pad, and dissection of the synovium enveloping the ACL. The ACL is relatively hypovascular, with one-half the blood flow of the sy novium of the suprapatellar pouch. Application of an anterior stress diminishes the blood flow to the ACL to one-fifth of the baseline value, an effect which is re versible. Division of the infrapatellar fat pad causes a two-fold decrease in perfusion to the ACL, whereas dissection of the enveloping synovium results in a com plete cessation of blood flow.

This article has been cited by other articles:

				S. M. Howell, K. E. Knox, T. E. Farley, and M. A. Taylor Revascularization of a Human Anterior Cruciate Ligament Graft During the First Two Years of Implantation Am. J. Sports Med., January 1, 1995; 23(1): 42 - 49. [Abstract] [PDF]