Fuzzy Support System for Total Hip Arthroplasty Stem by Ultrasonic Intraoperative Measurement

Table 1

Threshold of fuzzy membership function (attenuation time).

Th𝑎	Subject number 1	Subject number 2	Subject number 3	Subject number 4	Subject number 5	Subject number 6	Subject number 7	Subject number 8
Stem number 4	30.61	—	—	—	28.44	27.50	30.94	27.50
Stem number 5	23.22	—	23.19	—	25.48	24.58	28.42	23.19
Stem number 6	18.91	—	18.53	18.60	21.88	20.51	22.59	19.13
Stem number 7	18.91	20.13	19.41	20.52	—	20.64	23.04	19.82
Stem number 8	14.75	17.42	17.30	15.74	—	16.39	16.65	—
Stem number 9	18.51	20.79	—	—	—	19.72	—	—
Stem number 10	—	—	—	—	—	—	—	—