From: Magnitude and meaningfulness of change in SF-36 scores in four types of orthopedic surgery
Group | % male | Age | |
---|---|---|---|
 |  | M (SD) | Range |
Total hip replacement (controls) | 44.6 | 70.7 (7.6) | 52–86 |
Total hip replacement (patients) | 47.2 | 70.5 (8.9) | 41–96 |
Total knee replacement | 37.1 | 71.3 (8.1) | 43–86 |
Arthroscopic partial meniscectomy | 67.6 | 44.8 (12.2) | 14–75 |
Anterior cruciate ligament reconstruction | 80.6 | 25.9 (5.1) | 18–35 |