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The Dacron ligament prosthesis in anterior cruciate ligament reconstruction

A four-year review

Mississippi Sports Medicine and Orthopaedic Center

Lawrence L. Line, JR, MD

Mississippi Sports Medicine and Orthopaedic Center

Walter R. Shelton, MD

Mississippi Sports Medicine and Orthopaedic Center

James O. Manning, MD

Mississippi Sports Medicine and Orthopaedic Center

Ray Phelps, PhD

Millsaps College, Jackson, Mississippi

We studied 40 patients who underwent reconstruction for chronic anterior cruciate ligament deficiency with a Dacron ligament prosthesis using a modified MacIntosh over-the-top technique, augmented with iliotibial band. Thirty patients had undergone at least 1 prior surgical procedure on the affected knee, but only 7 patients had previous anterior cruciate ligament reconstruction.

All patients were followed for a mean of 47.5 months. The results at final followup demonstrated an average side-to-side arthrometer difference of 1.0 mm. The Lysholm score improved from 65 preoperatively to 89 at the end of the review; the Tegner activity level score improved from 3 to 5. Objectively, 75% of the patients had a negative Lachman test result and 95.1% of the subjects had negative or trace pivot shift results at review. Mild knee pain was still present with day-to-day activity in 87.7% of the patients.

Complications occurred in 27.5% of patients, includ ing five who had implant ruptures and two who had their grafts removed. Synovitis was a significant prob lem.

Based on our failure criteria, 47.5% (19) of the sub jects had failed results. In this study, radiologic evidence of tracer separation greater than 1 cm was a criterion of failure. With inclusion of tracer separation, the failure rate increased to 60.0% (24).

Multiple previous surgeries of any type had an ad verse effect on results. Damage to secondary stabiliz ers in these cases increased failure rate. Based on the high complication and failure rates, and relatively poor end result in this retrospective review, we cannot rec ommend this procedure.

This article has been cited by other articles:

				C. B. FRANK and D. W. JACKSON Current Concepts Review - The Science of Reconstruction of the Anterior Cruciate Ligament J. Bone Joint Surg. Am., October 1, 1997; 79(10): 1556 - 76. [Full Text]