Table 3 Patient kinematic data
From: Dynamic hip kinematics during squatting before and after total hip arthroplasty
Patient No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
Maximum hip flexion (°) | ||||||||||
Pre-THA | 59.5 | 73.1 | 67.2 | 83.5 | 73.3 | 70.7 | 59.4 | 84.3 | 91.2 | 55.2 |
Post-THA | 75.6 | 73.3 | 71.6 | 90.5 | 81.3 | 87.5 | 71.2 | 87.6 | 98.6 | 69.4 |
Maximum femoral flexion (°) | ||||||||||
Pre-THA | 77.2 | 92.9 | 85.8 | 93.8 | 87 | 86.9 | 87.2 | 85.5 | 94.3 | 70.9 |
Post-THA | 96.5 | 92.1 | 91.7 | 102.1 | 86 | 92.1 | 104.6 | 85.4 | 103.1 | 95.1 |
Pelvic tilt at maximum hip flexion (°) | ||||||||||
Pre-THA | 40.3 | 20.6 | 15.5 | 8.1 | − 3 | 18.9 | 31.2 | 2.5 | 7.6 | 23.9 |
Post-THA | 20.3 | 15.4 | 16.7 | 4.2 | 3.5 | 3.8 | 17.6 | − 6.7 | 2.3 | 26.9 |
Liner-to-neck clearance | ||||||||||
the minimum anterior distance (mm) | 10 | 9.5 | 11.4 | 8.2 | 11.2 | 12.4 | 12.4 | 12.1 | 14.8 | 7.3 |
the minimum posterior distance (mm) | 10.1 | 7 | 9.9 | 8.9 | 11.2 | 7.3 | 10.1 | 5.8 | 6 | 3.6 |
the minimum angle at maximum hip flexion (°) | 30.6 | 32.6 | 35.2 | 31.8 | 31 | 34.9 | 44 | 40.1 | 46.3 | 20.7 |