The Journal of Bone and Joint Surgery (American). 2008;90:121-132.
doi:10.2106/JBJS.H.00685
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Balancing the Flexion Gap: Relationship Between Tibial Slope and Posterior Cruciate Ligament Release and Correlation with Range of Motion

Adolph V. Lombardi, Jr., MD1, Keith R. Berend, MD1, Jorge Aziz-Jacobo, MD1 and Mark B. Davis, DO2

1 Joint Implant Surgeons Inc., 7277 Smith's Mill Road, Suite 200, New Albany, OH 43054. E-mail address for A.V. Lombardi Jr.: LombardiAV@joint-surgeons.com
2 Northern Arizona Orthopaedics, 3237 North Windsong Drive, Prescott Valley, AZ 86314

The first 150 words of the full text of this article appear below.


   Introduction
 
The success of total knee arthroplasty has been shown to depend on the attainment of appropriate limb alignment with balanced flexion and extension gaps (Figs. 1-A and 1-B)1-3. While several techniques can be used to accomplish these goals, the technique of measured resection is widely accepted4. Simply stated, this technique involves resection of the amount of bone that will be replaced by metal and polyethylene (Figs. 2-A and 2-B). The technique fosters the reestablishment of the joint line, not only distally but also posteriorly, and thus reestablishes appropriate posterior femoral offset. With respect to the tibia, it is not only the coronal alignment that affects the results of the arthroplasty; the sagittal alignment (the degree of posterior slope) also has a substantial effect on the flexion and extension gaps5-11.


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  		Figs. 1-A and 1-B The appropriate limb alignment of 5° to 7° of valgus for a total knee . . . [Full Text of this Article]

 

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