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OUTCOMES OF TOTAL KNEE ARTHROPLASTY FOR OSTEOARTHRITIS USING A KINEMATIC KNEE PROSTHESIS AT VIET DUC UNIVERSITY HOSPITAL
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Abstract
Objective: To evaluate the clinical characteristics, radiographic features, and surgical outcomes of total knee arthroplasty (TKA) for knee osteoarthritis using a kinematic knee prosthesis at Viet Duc University Hospital from June 2024 to June 2025. Subjects and Methods: A prospective, cross-sectional descriptive study without a control group was conducted on 45 patients with varus deformity due to knee osteoarthritis who underwent TKA using a kinematic knee prosthesis at Viet Duc University Hospital from June 2024 to June 2025. Results: The average age of patients with varus knee osteoarthritis ranged from 60 to 69 years, with a predominance of females. The most common symptom was pain during ambulation (77.8%), and the mean range of motion was 105 ± 8.3 degrees. Clinically, varus deformity associated with flexion contracture was most common (55.8%). On radiographs, grade IV osteoarthritis accounted for 84.4%, while mild varus deformity (3°-<10°) was most frequent (55.5%), and severe deformity (≥20°) accounted for 6.7%. Postoperatively, the lower limb mechanical axis improved significantly by 9.1 ± 2.9. Clinical and functional outcomes of the knee improved significantly after surgery, with a Knee Score (KS) of 84.3 ± 3.6 and a Knee Function Score (KFS) of 85.4 ± 5.3. Conclusion: Total knee arthroplasty using a kinematic knee prosthesis achieved a neutral mechanical axis postoperatively. Knee function, pain level, and range of motion improved significantly compared to preoperative status.
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Keywords
Total knee arthroplasty; kinematic knee prosthesis.
References
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