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Alignment results of infrared computer-assisted navigation of total knee arthroplasty for end-stage knee
Xiao Yu1, Guangxiang Chen1, Zhiqiang Li1
1Department of Orthopedic Surgery, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou 215000, Jiangsu, P. R. China.
Objective:
Total knee arthroplasty (TKA) is one of the most conventional surgeries used to solve dyskinesia caused by knee joint degeneration; however, ambiguous prosthesis position and angle after TKA can cause serious complications. This study evaluated the outcomes of infrared computer-assisted navigation (ICAN) of TKA for end-stage knee osteoarthritis.
Methods:
Forty-six end-stage knee osteoarthritis patients who underwent TKA were randomly divided into computer-assisted orthopedic surgery (CAOS) (n = 23) and non-CAOS (n = 23) groups. The intraoperative conditions, postoperative complications, soft tissue balancing, functional scores, and X-ray data were compared between groups.
Results:
The CAOS group showed longer surgery time and higher range of motion than the non-CAOS group. No significant differences in American Knee Society Score (AKSS) and Oxford Knee Score were observed between the two groups. Compared to those in the non-CAOS group, the error of the lower limb line, angle of soft tissue balancing, separation of soft tissue, and angular deviation (α, β, γ, δ) of the implants were much lower in the CAOS group.
Conclusion:
The ICAN system for TKA surgery was associated with less intraoperative blood loss and suitable position and angle in patients with end-stage knee osteoarthritis.
