Clinical Study

Patella Eversion Reduces Early Knee Range of Motion and Muscle Torque Recovery after Total Knee Arthroplasty: Comparison between Minimally Invasive Total Knee Arthroplasty and Conventional Total Knee Arthroplasty

Table 1

Patient demographics.

Conventional TKAMIS-TKA š‘ƒ value

Age 6 9 . 2 Ā± 8 . 1 7 1 . 8 Ā± 7 . 7 N.S
Sex, F/M 8 2 / 1 8 7 9 / 2 1 N.S
Height (cm) 1 5 4 . 1 Ā± 6 . 0 1 5 1 . 5 Ā± 5 . 2 N.S
Weight (kg) 6 0 . 8 Ā± 6 . 1 6 2 . 2 Ā± 5 . 8 N.S
Preoperative knee extension (degree) āˆ’ 1 0 Ā± 8 . 5 āˆ’ 8 . 5 Ā± 1 0 . 1 N.S
Preoperative knee flexion (degree) 1 1 5 Ā± 1 0 . 5 1 2 0 Ā± 1 1 . 4 N.S
Preoperative mechanical axis in one leg standing radiograph (degree) 1 9 0 . 8 Ā± 8 . 9 1 8 8 . 6 Ā± 1 0 . 6 N.S
Percentage of preoperative peak isokinetic torque of the quadriceps muscle (%)* 8 2 Ā± 1 4 8 5 Ā± 1 1 N.S
Preoperative visual analogue scale of pain (mm) 7 5 Ā± 1 1 7 2 Ā± 1 3 N.S
Preoperative knee score 4 8 . 6 Ā± 7 . 6 4 6 . 7 Ā± 8 . 5 N.S

*preoperative peak value in uninvolved knee was defined as a reference value (100%).