Fig. 3From: Large flexion contracture angle predicts tight extension gap during navigational posterior stabilized-type total knee arthroplasty with the pre-cut technique: a retrospective studyThe correlation between the FCA and the gap difference between flexion and extension. The FCA and the gap difference between flexion and extension were significantly associated (R = 0.64; P = 0.003). FCA flexion contracture angleBack to article page