Knee Surg Relat Res.  2012 Sep;24(3):158-163. 10.5792/ksrr.2012.24.3.158.

The Correlation between Posterior Tibial Slope and Maximal Angle of Flexion after Total Knee Arthroplasty

• Kim KH
• Bin SI
• Kim JM

• KMID: 2297844
• DOI: http://doi.org/10.5792/ksrr.2012.24.3.158

Abstract

PURPOSE
The purpose of this study was to evaluate the correlation between the posterior tibial slope and the maximal angle of flexion after total knee arthroplasty.
MATERIALS AND METHODS
Seventy nine cases (63 patients, 60 females and 3 males), which received total knee arthroplasty with the Nexgen LPS system from Jan 2001 to Jan 2004, were enrolled. We divided all cases into two subsets in two ways. Firstly, group A (up to 10degrees, 44 cases) and group B (over 10degrees, 35 cases) were divided according to the mean value of the postoperative posterior tibial slope. Secondly, group alpha (up to -4degrees, 39 cases) and group beta (over -4degrees, 40 cases) were divided according to the mean difference between the preoperative posterior tibial slope and the postoperative posterior tibial slope. We compared the maximal angle of flexion between group A and group B, group alpha and group beta, respectively.
RESULTS
There was no significant difference between group A and group B, and also between group alpha and group beta in terms of maximal angle of flexion.
CONCLUSIONS
There was no significant correlation between the postoperative posterior tibial solpe and the maximal angle of flexion.

Keyword

Osteoarthritis; Posterior tibial slope; Maximal angle of flexion; Total knee arthroplasty

MeSH Terms

Arthroplasty
Female
Humans
Knee
Osteoarthritis