Knee Surg Relat Res.  2013 Jun;25(2):60-64. 10.5792/ksrr.2013.25.2.60.

Soft Tissue Balancing of Varus Arthritic Knee in Minimally Invasive Surgery Total Knee Arthroplasty: Comparison between Posterior Oblique Ligament Release and Superficial MCL Release

• Seo JG
• Moon YW
• Jo BC
• Kim YT
• Park SH

• KMID: 2094243
• DOI: http://doi.org/10.5792/ksrr.2013.25.2.60

Abstract

PURPOSE
To assess proper soft tissue balancing of the varus arthritic knee between posterior oblique ligament (POL) release group and superficial medial collateral ligament (SMCL) release group.
MATERIALS AND METHODS
This retrospective study was performed on 186 patients who underwent minimally invasive surgery (MIS) total knee arthroplasty (TKA) from January 2011 to December 2011. Eighty-three patients were in the group of SMCL release and 103 patients were in the POL release group. We intended to use a 10 mm polyethylene insert (PE) during TKA, and retrospectively compared the actual thickness of PE between POL release group and SMCL release group.
RESULTS
The mean PE thickness was 10.59+/-1.3 mm (range, 8 to 15 mm) in POL group and 11.88+/-1.8 mm (range, 10 to 18 mm) in SMCL group (p=0.001). We found a significant difference in the mean PE thickness between POL release group and SMCL release group.
CONCLUSIONS
POL and deep MCL releases in MIS-TKA would be beneficial for varus deformity correction in the osteoarthritic knee.

Keyword

Minimally invasive surgery; Soft tissue release; Total knee arthroplasty

MeSH Terms

Arthroplasty
Benzeneacetamides
Collateral Ligaments
Congenital Abnormalities
Humans
Knee
Ligaments
Piperidones
Polyethylene
Retrospective Studies
Benzeneacetamides
Piperidones
Polyethylene