Radiological Assessment of Alignment of Knee and Prosthesis after Primary Total Knee Arthroplasty
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2017, Vol 5, Issue 3
Abstract
Background: Total knee arthroplasty (TKA) is procedure which is widely performed to give functional improvement and pain relief in advanced knee arthritis patients. Nonanatomic component placement often results in component loosening. Hence, correct sizing and placement are important for optimal functional and long-term results. Objectives: The aim of this study is to evaluate alignment of knees and placement of prostheses in post-operative knee roentgenograms. Materials and Methods: This is retrospective study of patients who underwent TKA using various types of prostheses in a tertiary care institute. Various angles were measured to evaluate limb alignment, placement of the tibial and femoral prostheses according to roentgenographic knee evaluation system endorsed by the knee society1 and also roentgenographic index was calculated as suggested by Lotke et al.2 Results: We evaluated 100 post-operative knee roentgenograms in a tertiary care institute. Out of which, 88 knees showed acceptable, overall knee alignment calculated by tibiofemoral angle. A total of 82 knees showed normal placement of femoral component calculated by femoral component alignment angle. A total of 85 knees had tibial component placement within normal range calculated by tibial component alignment angle. Totally, 90 knees showed roentgenographic index score in normal range. Conclusion: In this study, we conclude that total knee arthroplasties were done without using navigation and with proper technique also give fairly good amount of radiological alignment and placement of prostheses.
Authors and Affiliations
D Deokate Pravin, Vishal S Patil, R G Puranik
Keywords
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