J Korean Orthop Assoc.  2008 Feb;43(1):78-85. 10.4055/jkoa.2008.43.1.78.

Early Results of MIS-QS Total Knee Arthroplasty: A Comparison with Conventional Procedure for the Same Patient

• Choi YJ
• Ahn HS
• Kim CH
• Hwang JK
• Lee KW
• Jeon JS
• Lee JH
• Ha JK

• KMID: 2106420
• DOI: http://doi.org/10.4055/jkoa.2008.43.1.78

Abstract

PURPOSE: This study assessed the early clinical and radiological results of Minimally Invasive Surgery- Quadriceps sparing total knee arthroplasty (MIS-QS TKA), and compared these results with those of conventional TKA.
MATERIALS AND METHODS
Between August 2004 and March 2005, 17 patients with bilateral TKA on their one side using a regular procedure and the other using the MIS-QS technique were evaluated and compared. The clinical assessment was performed by measuring the range of motion, Knee Society Score, and a radiological evaluation by standing anteroposterior, supine lateral, and Merchant view preoperatively, 2 weeks, 6 weeks, 3 months and 1 year after surgery. Statistical analysis was performed using a paired t-test.
RESULTS
The average range of knee motion was slightly larger in the MIS-QS group at all periodsbut there was no statistical difference between the two groups. The Knee Society Score was similar at the 3 month and 1 year periods. The alignment of the implants was satisfactory in both groups and postoperative patellar alignment checked in the Merchant view was better in the MIS-QS group at all periods.
CONCLUSION
There were no differences in the clinical aspects at 1 year period between the two groups. However, the MIS-QS group showed better patellar alignment than the conventional group for up to 1 year.

Keyword

MIS-QS Total Knee Arthroplasty; Early result; Patellar alignment

MeSH Terms

Arthroplasty
Humans
Knee
Range of Motion, Articular

Figure

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  Fig. 1 Preoperative film.

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  Fig. 2 The right knee was operated using MIS-QS total knee arthroplasty and the left knee was operated using the conventional procedure.

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  Fig. 3 Postoperative films.

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  Fig. 4 Merchant films taken 1 year after surgery.

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