Fig. 4From: Using short knee radiographs to predict the coronal alignment after TKA: Is it an accurate proxy for HKA on full-length images?Cases with a neutral HKA while a varus or valgus HKA. A and B The HKA is neutral (within −3° to 3°) but the FTA is varus (less than 4°). C and D The HKA is neutral but the FTA is valgus (more than 9°). FTA, femorotibial angle; HKA, hip-knee-ankle angleBack to article page