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OUTCOMES OF TOTAL KNEE ARTHROPLASTY IN THE TREATMENT OF POST-TRAUMATIC KNEE OSTEOARTHRITIS
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Abstract
Objective: To evaluate the clinical and paraclinical characteristics and the outcomes of total knee arthroplasty (TKA) in the treatment of post-traumatic knee osteoarthritis. Materials and Methods: A total of 25 patients diagnosed with post-traumatic knee osteoarthritis underwent total knee arthroplasty at Viet Duc University Hospital from January 2022 to June 2025. Results: Clinically, all patients (100%) presented with knee pain, limited range of motion, and crepitus. Palpable hypertrophic masses were found in 20% of patients. Varus deformity was observed in 40%, and valgus deformity in 60%. The mean knee flexion range was 75 ± 15°, and the mean extension loss was 14 ± 5°. Grade 3 osteoarthritis accounted for 36%, and grade 4 for 64%. The mean angular deformity was 22 ± 3° in varus knees and 14 ± 2° in valgus knees. All patients underwent posterior cruciate ligament–substituting total knee arthroplasty. In three patients, screws and biological bone cement were used to fill medial tibial defects. According to the Knee Society Score (KSS), both pain and functional outcomes significantly improved after TKA. The mean knee score increased from 38 preoperatively to 78 at the final follow-up (p = 0.001). The mean functional score improved from 33 to 67 at the final follow-up (p = 0.001). The mean range of knee motion improved from 60 ± 1.4° before surgery to 95.5° after surgery (p = 0.004). The average correction of limb alignment was 14.8° in the varus group and 11.2° in the valgus group. Conclusion: Total knee arthroplasty in patients with post-traumatic knee osteoarthritis effectively reduces pain, improves function and range of motion, and restores normal alignment, enabling patients to return to normal daily activities
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Keywords
Total knee arthroplasty, post-traumatic knee osteoarthritis.
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