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Table 2 Knee data

From: Investigation of perioperative safety and clinical results of one-stage bilateral total knee arthroplasty in selected low-risk patients

Parameter n = 67
Major complication rate (%) 0
Minor complication rate (%) 14.9
Operative time (minutes) 89.6 ± 12.1
Time to discharge from operation (days) 43.8 ± 14.2
Extension angle on the right side (°)
 Preoperative −10.9 ± 8.0a
 At discharge −2.8 ± 3.9a
 At 1 year −1.1 ± 2.4a
Extension angle on the left side (°)
 Preoperative −11.6 ± 8.1a
 At discharge −2.3 ± 3.2a
 At 1 year −1.2 ± 2.5a
Flexion angle on the right side (°)
 Preoperative 117.5 ± 16.6
 At discharge 109.3 ± 10.3a
 At 1 year 113.2 ± 15.4
Flexion angle on the left side (°)
 Preoperative 118.6 ± 15.7
 At discharge 108.7 ± 11.3a
 At 1 year 114.8 ± 12.6
JOA score on the right side (points)
 Preoperative 53.4 ± 9.0a
 At 1 year 86.9 ± 7.1a
JOA score on the left side (points)
 Preoperative 53.7 ± 9.0a
 At 1 year 86.4 ± 7.9a
  1. ROM range of motion, JOA Japanese Orthopedic Association
  2. Results are presented as mean ± standard deviation
  3. aSignificant difference between the time points (P < 0.05)