**2. Clinical examination and preoperating planning**

Total knee arthroplasty (TKA) with valgus release is indicated when both mechanical and pharmacological nonoperative treatment modalities for end-stage degenerative joint disease have failed to relieve pain. The major contraindication to TKA is infection, and relative contraindications include young age, high activity level, and obesity [18]. Clinical evaluation and radiological assessment are extremely important as part of the TKA preoperating planning.
