The instruments used to measure sensibility of the foot were the Semmes-Weinstein (SW) monofilament test 24 and the static two-point discrimination (2PD) test 25. The weight-bearing area of the first metatarsal head and the dorsum of the first metatarsal head were assessed. Active range of motion (ROM) of the hip, knee, and ankle joints was measured with a goniometer. The muscle strength was test using Medical Research Council (MRC) Scale. The cold intolerance of the leg was measured using the self-administered Cold Intolerance Severity Score (CISS) questionnaire 26. The maximum score is 100 and is grouped into 4 ranges (0-25, 26-50, 51-75, and 76-100) corresponding to mild, moderate, severe, and extreme severity, respectively.