J Korean Knee Soc.  2005 Jun;17(1):99-104.

Comparison of Posterior Cruciate Retaining & Substituting Total Knee Arthroplasty in Varus Deformity of Knee

• Oh JJ
• Kho DH
• Lim SW
• Kim DO
• Kim DH

Abstract

PURPOSE: To evaluate the effect of posterior cruciate ligament retaining total knee arthroplasty on its clinical results in patients with varus deformity.
MATERIALS AND METHODS
We analyzed clinical and radiologic results of the 61 cases (39 patients) with varus deformity more than 15 degrees retrospectively. The average follow up period was 6.1 years (range, 5~8 years old). The cases were divided into posterior cruciate ligament retaining group A (42 cases) and substituted group B (19 cases).
RESULTS
There was no statistically significant difference between two groups in Knee Society knee score (A group: 88.1, B group: 88.9), functional score (A group: 79.3, B group: 75.6) activity level (A group: 67.5, B group: 62.5), flexion contracture (A group: 4.5 degree, B group: 4.9 degree), tibiofemoral angle (A group: 4.7 degree, B group: 5.2 degree) and roentgenographic findings. Patients with PCL retaining knees showed significantly increased activity levels in going up and down stairs, and walking.
CONCLUSION
It is considered that the preservation of the posterior cruciate ligament is better than the substitution of the ligament if technical problems are solved.

Keyword

Posterior cruciate ligament; Varus deformity; Total knee arthroplasty

MeSH Terms

Arthroplasty*
Congenital Abnormalities*
Contracture
Follow-Up Studies
Humans
Knee*
Ligaments
Posterior Cruciate Ligament
Retrospective Studies
Walking