J Korean Knee Soc.  2004 Dec;16(2):125-130.

Lower Limb Position in Oxford Unicompartmental Knee Arthroplasty

• In Y
• Kwon OS
• Kim SJ
• Lee DS
• Cheon JO

Abstract

PURPOSE: To compare the accuracy of tibial cutting between in dangling position and standing position of the lower limb for Oxford unicompartmental knee arthroplasty.
MATERIALS AND METHODS
From September 2001 to September 2003, While performing Oxford unicompartmental knee arthroplasty, we cut tibial plateau with lower extremity in dangling position and standing position alternately. Group 1 consisted of 12 cases underwent tibial cutting in dangling position. Group 2 consisted of 12 cases underwent tibial cutting in standing position. Clinical assessments consisted of radiologic evaluation and HSS knee score.
RESULTS
There were no significant differences in limb alignments and HSS knee scores between group 1 and group 2 at one year postoperatively. In anteroposterior radiographs, the mean alignment of tibial component of group 1 was measured 4.07+/-5.7 degrees varus to the tibial axis and that of group 2 was measured 2.34+/-2.4 degrees varus to the tibial axis(P=0.35).
CONCLUSION
In Oxford unicompartmental knee arthroplasty, tibial cutting in standing position showed a tendency to cut tibia more perpendicular to the tibial axis. But it was statistically not significant.

Keyword

Unicompartmental knee arthroplasty; Lower limb position; Oxford implant

MeSH Terms

Arthroplasty*
Axis, Cervical Vertebra
Extremities
Knee*
Lower Extremity*
Tibia