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Knee Surg Sports Traumatol Arthrosc · Nov 2007
Flexion gap preparation opens the extension gap in posterior cruciate ligament-retaining TKA.
- Yukihide Minoda, Akira Sakawa, Masaharu Aihara, Koichi Tada, Yoshinori Kadoya, and Akio Kobayashi.
- Department of Orthopaedic Surgery, Kansai Rosai Hospital, 3-1-69 Inabasou Amagasaki, Hyogo 660-8511, Japan. yminoda@msic.med.osaka-cu.ac.jp
- Knee Surg Sports Traumatol Arthrosc. 2007 Nov 1; 15 (11): 1321-5.
AbstractIt has been reported that preparation of the flexion gap results in significant widening of the prepared extension gap in posterior stabilized (PS) total knee arthroplasty (TKA). To date, there is a paucity of data regarding cruciate ligament-retaining (CR) TKA. Changes in the extension gap caused by preparation of the flexion gap were measured in 42 varus osteoarthritic knees undergoing CR TKA. The extension gap was first prepared and then measured before and after preparation of the flexion gap. The extension gap increased significantly on both the medial and lateral sides (18.8-20.0 and 21.7-22.7 mm, respectively) (P < 0.01). Preparation of the flexion gap also resulted in significant widening of the extension gap on CR TKA. However, amount of extension gap increase in CR TKA was smaller than previous reports on PS TKA.
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