Computer-Assisted Total Knee Arthroplasty for Arthritis With Extra-articular Deformity
Received 8 February 2009; accepted 5 May 2009. published online 06 July 2009.
Abstract
Forty extra-articular deformities (22 femoral and 18 tibial) in 34 patients (mean age, 63.1 years) were studied. Mean coronal extra-articular deformity was 9.3°; mean preoperative limb alignment was 166.7°. Three limbs underwent simultaneous corrective osteotomy; the rest were treated with intra-articular correction during computer-assisted total knee arthroplasty (TKA). Mean postoperative limb alignment was 179.1°. At a mean follow-up of 26.4 months, the Knee Society knee score improved from a mean preoperative score of 49.7 to 90.4 points postoperatively; function score improved from 47.3 to 84.9 points. Computer-assisted TKA is a useful alternative to conventional TKA for knee arthritis with extra-articular deformity where accurate restoration of limb alignment may be challenging because of the presence of a deformed tibia or femur or in the presence of hardware.
Department of Orthopaedic Surgery, Breach Candy Hospital, Mumbai, India
Reprint requests: Arun Mullaji, FRCS Ed, MChOrth, MSOrth, The Arthritis Clinic, 101, Cornelian, Kemp's Corner, Cumballa Hill, Mumbai 400036, India.
No benefits or funds were received in support of this study by any of the authors. This article is original and has not been published before or currently submitted to any other journal.
ABSTRACT