TABLE 1.
Baseline Characteristics at the Time of PCL Reconstruction of the Patients Included in the Study Cohort and the Patients Lost to Follow-upa
| Study Cohort (n1) | Lost to Follow-up (n2) | |
|---|---|---|
| Age at surgery, y (n1 = 252, n2 = 121), median (range) | 35 (14-67) | 27 (15-62) |
| Time from injury to surgery, mo (n1 = 249, n2 = 118), median (range) | 12 (0-240) | 12 (0-204) |
| Sex: female (n1 = 252, n2 = 121) | 112 (44)b | 37 (31) |
| Activity at time of injury (n1 = 247, n2 = 117) | ||
| Sports | 137 (55)b | 48 (40) |
| Other than sports | 110 (43)b | 69 (57) |
| Unknown | 5 (2) | 4 (3) |
| Concomitant (n1 = 252, n2 = 121) | ||
| Ligament injuryc | ||
| Isolated PCL injury | 79 (31) | 36 (35) |
| Multiligament injury | 173 (69) | 78 (65) |
| Meniscal lesion | 59 (23) | 32 (26) |
| Cartilage lesion | 99 (39) | 40 (33) |
| Other injuryd | 12 (5) | 11 (9) |
| PCL graft (n1 = 242, n2 = 117) | ||
| Hamstrings | 172 (68) | 83 (69) |
| Other | 70 (28) | 34 (28) |
| Unknown | 10 (4) | 4 (3) |
| Preoperative KOOS, mean (95% CI) | ||
| Pain (n1 = 168, n2 = 84) | 60.7 (57.4-67.0) | 64.5 (60.2-68.8) |
| Symptoms (n1 = 171, n2 = 85) | 65.2 (62.5-67.9) | 68.8 (65.2-72.4) |
| ADL (n1 = 167, n2 = 82) | 66.4 (62.9-69.9) | 71.1 (66.5-75.7) |
| Sport/Recreation (n1 = 166, n2 = 83) | 24.6 (20.7-28.5) | 30.9 (25.3-36.5) |
| QoL (n1 = 168, n2 = 84) | 28.1 (25.1-31.1) | 29.8 (25.4-34.2) |
aData are reported as n (%) unless otherwise indicated. ADL, Activities of Daily Living; KOOS, Knee injury and Osteoarthritis Outcome Score; PCL, posterior cruciate ligament; QoL, Quality of Life.
bStatistically significant difference, P < .05.
cAnterior cruciate ligament, medial collateral ligament, lateral collateral ligament, posterolateral corner.
dNeural injury, arterial injury, fracture, tendon rupture.