A prospective study of functional outcome and deformity correction after Total Knee arthroplasty in valgus deformity of knee

Abstract

: Total knee arthroplasty (TKA) has been particularly challenging in patients who present with valgus knee deformity, which constitutes about 10% of cases. The current study seeks to review the functional and radiological outcomes of patients treated with TKA.: A total of 40 knees in 30 patients with valgus deformity were the subjects of the current study. Most of them (38 knees) had a medial parapatellar approach, while two underwent an anterolateral approach. We assessed the outcome with the Knee Society score (KSS), the Visual Analogue Scale (VAS) for pain, and the radiological alignment through the Hip Knee Ankle Axis (HKA). The measurements are done in 6-week, 3-month, 6-month, and months of an immediate post-operative.: There is a very clear improvement in all these measures. The KSS knee scores improved from 54 preoperatively to 92 in one year (p < 0.01), and the KSS functional scores also improved significantly from 52 to 87 (p < 0.01). The pain intensity scores clearly decreased from the preoperative average of 5.30 to 0 postoperatively (p < 0.001). Radiologically, there was improved alignment, with HKA angles decreasing from 9.12 preoperatively to 6.25 postoperatively.: TKA significantly improved the functional outcome and reduced pain among patients presenting with a valgus knee deformity. This resulted from a clear improvement seen in the KSS, VAS, and HKA measures. The study continues to show the effectiveness of TKA in improving clinical outcomes among these difficult groups of patients.