Comparative study of stability after total knee arthroplasties between navigation system and conventional techniques

Eun Kyoo Song, Jong Keun Seon, Taek Rim Yoon, Sang Jin Park, Sang Gwon Cho, Ji Hyeon Yim
Journal of Arthroplasty 2007, 22 (8): 1107-11
The aim of this study was to evaluate the stability of mediolateral laxity in extension and anteroposterior laxity in 90 degrees of flexion using stress radiographs, modified Hospital for Special Surgery scores, and range of motion of total knee arthroplasties (TKAs) performed using a navigation system (navigation-assisted group, 42 knees) after a minimum 1-year follow-up and to compare them with those of a conventional TKA (conventional group, 44 knees) using a gap technique. The mean medial laxities were 3.5 degrees in the navigation-assisted group and 4.0 degrees in the conventional group, and the mean lateral and anteroposterior laxities were 4.4 degrees and 4.2 degrees in 7.1 and 7.0 mm, respectively. These results showed no significant differences between the 2 groups. Thus, we concluded that there is no significant difference between navigation-based and conventional techniques in terms of TKA stability. In addition, no significant differences were found between the 2 groups in modified HSS scores or range of motion.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"