The Position of Proximal Reference Point of Tibial Plateau to Prevent Varus Tibial Cutting in Total Knee Replacement : Prospective Randomized Study.
- Author:
Kye Young HAN
1
;
Woo Dong NAM
;
Kee Hyung RHYU
;
Keun Woo KIM
Author Information
1. Department of Orthopaedic Surgery, Kangwon National University, College of Medicine, Korea. ceo@knuh.or.kr
- Publication Type:Original Article ; Randomized Controlled Trial
- Keywords:
Tibia;
Lateral intercondylar eminence;
Varus;
Tibial osteotomy;
Total knee arthroplasty
- MeSH:
Arthroplasty;
Arthroplasty, Replacement, Knee*;
Axis, Cervical Vertebra;
Congenital Abnormalities;
Humans;
Knee;
Osteotomy;
Prospective Studies;
Prostheses and Implants;
Tibia
- From:Journal of the Korean Knee Society
2006;18(1):63-66
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: When there is a varus deformity in proximal tibia, the extension of a tibial shaft axis usually passes through the lateral intercondylar eminence. We performed prospective randomized study to find out whether the lateral eminence of tibia could be used as a reference point for proximal tibial cutting during total knee arthroplasty. MATERIALS AND METHODS: We randomly divided fifty patients who received TKR from April to December 2004 into two groups. For a proximal tibial cutting, we located the proximal tibial reference point at the center of intercondylar eminences for group I and at the lateral eminence for group II. Along with the clinical assessment, we measured the angles between the axis of the prostheses and both the mechanical and shaft axis of tibiae. RESULTS: There were no differences in clinical results between two groups. The angles between the axis of the prostheses and the mechanical / shaft axis of tibiae were varus 2.14 / 2.22 degrees in group 1 and valgus 0.20 / 0.14 degrees in group 2(p=0.02, 0.01). CONCLUSION: With moving the reference point laterally, we could prevent the varus tibial osteotomy and achieve more reliable alignment of the tibial component.
