2015 ISAKOS Biennial Congress ePoster #2005

Comparison of the Clinical Results of Three Techniques of Arthroscopic Posterior Cruciate Ligament Augmentation

Zhiyao Li, MD, Beijing CHINA
Lei Zhang, MD, PhD, Beijing CHINA
Jia Ma, Beijing CHINA
Wangjing Hospital, BEIJING, CHINA

FDA Status Cleared

Summary: The retrospective study indicated that different kinds of PCL augmentation could preserve knee function and restore posterior tibial stability. There was no difference of clinical outcome among the groups concerning different kinds of remnants.

Abstract:

Purpose

The objective of the retrospective study was to compare the clinical results of posterior cruciate ligament (PCL) augmentation by preserving three kinds of remnants.

Methods

From September 2009 to August 2012, seventy-six patients were divided into three groups according to the different kinds of PCL remnants. The anterolateral group (AL, n=25) had anterolateral bundle reconstructed due to the remnant of posteromedial bundle. The posteromedial group (PM, n=23) had posteromedial bundle reconstructed due to the remnant of anterolateral bundle. The middle bundle group (MB, n=28) had a middle bundle reconstructed due to partial injury of both bundles. The minimum follow-up time was two years. Each patient was evaluated on the basis of the Lysholm knee score, the mean side-to-side difference in tibial translation as measured on Telos stress radiographs, and the side-to-side difference in the range of motion of the knee.

Results

The side-to-side difference in posterior translation significantly improved in all groups (P<0.01). The mean side-to-side difference (and standard deviation) in posterior tibial translation of the AL group was (3.40 ± 1.23 mm) and that of the PM group was (3.23 ± 1.39 mm), MB group (3.10 ± 1.13 mm), there was no significant difference among the three groups. The mean range of motion and Lysholm scores were similar among the three groups.

Conclusion

Our study indicated that different kinds of PCL augmentation could preserve knee function and restore posterior tibial stability. There was no difference of clinical outcome among the groups concerning different kinds of remnants.