J Korean Knee Soc.  2007 Dec;19(2):161-167.

Comparison between the Results of Minimally Invasive Total Knee Arthroplasty Performed with Mini-Midvastus Technique and Quadriceps-Sparing Technique

• Yoo JH
• Han CD
• Lee YT
• Oh HC
• Ha JW
• Park Y
• Sung SY
• Han CW

Abstract

PURPOSE: To compare the short-term clinical results of mini-midvatus minimally invasive total knee arthroplasty(TKA) with quadriceps-sparing minimally invasive TKA.
MATERIALS AND METHODS
Between August 2005 and February 2006, 23 bilateral (46 knees) minimally invasive total knee arthroplasties were performed simultaneously using quadriceps-sparing surgical technique at one side and mini- midvastus minimally invasive technique at the contralateral side. The same surgeon performed all the operations with the same type of prosthesis(Nexgen LPS-flex Total Knee System) using MIS quadriceps-sparing instrument. The pos- toperative clinical and radiological results were analyzed in each group.
RESULTS
There were no significant differences between the two groups in the operating time, total blood loss, length of skin incision, radiological results and postoperative HSS scores at 8 weeks and 1 year follow-up(p>0.05). Also, there were no differences in the postoperative range of motion and pain score assessed by visual analog scale at 1 day, 3 days, 7 days, 14 days, 8 weeks and 1 year follow-up(p>0.05).
Conclusions
Compared to quadriceps-sparing TKA, mini-midvastus minimally invasive TKA revealed no significant differences in the short-term clinical and radiological results. Therefore, it can be considered as an effective, alternative minimally invasive technique.

Keyword

Knee joint; Quad-Sparing; Mid-vastus approach; Minimally invasive; Total knee arthroplasty

MeSH Terms

Arthroplasty*
Knee Joint
Knee*
Range of Motion, Articular
Skin
Visual Analog Scale