Generally, the posterior ruciate ligament is ligament is a primary stabilizer and the most important ligamentous structure in the knee joint.
The treatment of isolated posterior cruciate liggament injury is controversial because some papers support conservative treatment and other patpers support operative treatment.
A retrospective study was made of ten cases of ruptured posterior cruciate ligament who had been reconstructed with a Kennedy LAD augmentation device, from August 1990 to October 1992.
The aim of this study is to evaluate the result of kennedy LAD augmentation with patellary tendon (8 cases) or semitendinosus and gracilis (2 cases) in posterior crucialte ligament reconstruction.
The period follow-up was from 13 to 35 months, mean 24 months.
@ES The result was as follows;
@EN 1. There were cases and all were males. The mean age of operation was 30 years, range between 16 to 49 years old.
2. There were eight acute injuries and two chronic injuries.
3. In the combined and isolated posterior cruciate ligament injury group, pain/swelling cartegory was excellent in eight and good in two, ROM/strength category was excellent in eight and good in two, stability category was excellent in seven,
good
in
two, and fair in one, function category was excellent in one, good in seven, fair in one, and poor in one, according to the OAK knee evaluation chart.
Final results were excellent in one, good in seven, fair in one, and poor in one.
4. Posterior laxity was determined for each patient with knee laxity tester in 90 degrees of flexion. Eight cases were between 0 mm to 5 mm, one case was between 6 degrees of flexion. Eight case were between 0 mm to 5 mm, one case was between 6
mm
to
10 mm, one case was between 11 mm to 15 mm.
5. In the isolated posterior cruciate ligament injury group, the result was excellent in one, and good in five. All of six cases were between 0 mm to 5 mm in the instability of the knee measured with knee laxity tester.
In summary, posterior cruciate ligament reconstruction is necessary in the young patient who has more than 10 mm posterior instability, and we suggest Kennedy LAD augmentation is good available procedure in posterior cruciate ligament
reconstruction.
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