Characteristics of patients
| N=443 | ||
|---|---|---|
| Variables | Range | |
| Age, years (SD) | 49.7 (12.8) | 18–76 |
| Sex, female, n (%) | 195 (44.0) | |
| Height, cm (SD) | 174.9 (9.5) | 152–201 |
| Weight, kg (SD) | 83.7 (15.6) | 48–149 |
| BMI, kg/m2 (SD) | 27.3 (4.3) | 19.5–47.2 |
| KOOS, (SD) | ||
| Pain | 54.5 (18.7) | 0–97 |
| Sport and recreation | 25.8 (21.5) | 0–100 |
| ADL | 63.6 (19.5) | 3–100 |
| Previous meniscus surgery on index knee, n (%) | 79 (17.8) | |
| Tear location | ||
| Medial | 329 (74.3) | |
| Lateral | 74 (16.7) | |
| Both | 40 (9.0) | |
| Tear pattern, n (%) | ||
| Longitudinal–vertical (bucket handle) | 84 (19.0) | |
| Horizontal | 32 (7.2) | |
| Radial | 29 (6.6) | |
| Vertical flap | 105 (23.7) | |
| Horizontal flap | 24 (5.4) | |
| Complex | 118 (26.6) | |
| Root tear | 2 (0.5) | |
| More than one tear type | 49 (11.1) | |
| Tissue quality, n (%) | ||
| Non-degenerative | 168 (37.9) | |
| Degenerative | 261 (58.9) | |
| Undetermined | 14 (3.2) | |
| Tear length, mm (SD) | 16.9 (8.7) | 2–50 |
| Tear depth, n (%) | ||
| Partial | 164 (37.0) | |
| Complete | 279 (63.0) | |
| Radial location, n (%) | ||
| Posterior | 288 (65.0) | |
| Mid body | 44 (9.9) | |
| Posterior+mid body | 73 (16.5) | |
| Anterior | 15 (3.4) | |
| Anterior+mid body | 4 (0.9) | |
| Posterior+anterior | 1 (0.2) | |
| All | 18 (4.1) | |
| Circumferential location, n (%) | ||
| Zone 1 | 139 (31.4) | |
| Zone 2 | 230 (51.9) | |
| Zone 3 | 74 (16.7) | |
| Medial cartilage grade, n (%) | ||
| Grade 0 | 111 (25.1) | |
| Grade 1 | 107 (24.2) | |
| Grade 2 | 89 (20.1) | |
| Grade 3 | 101 (22.8) | |
| Grade 4 | 35 (7.9) | |
| Lateral cartilage grade, n (%) | ||
| Grade 0 | 166 (37.5) | |
| Grade 1 | 153 (34.5) | |
| Grade 2 | 78 (17.6) | |
| Grade 3 | 35 (7.9) | |
| Grade 4 | 11 (2.5) | |
| Patellofemoral cartilage grade, n (%) | ||
| Grade 0 | 155 (35.0) | |
| Grade 1 | 114 (25.7) | |
| Grade 2 | 77 (17.4) | |
| Grade 3 | 70 (15.8) | |
| Grade 4 | 27 (6.1) | |
| Plica, n (%) | 165 (37.3) | |
| Synovitis, n (%) | ||
| None | 247 (55.8) | |
| Irritation/redness | 37 (8.4) | |
| Light synovitis | 100 (22.6) | |
| Moderate synovitis | 41 (9.3) | |
| Severe synovitis | 18 (4.1) | |
| ACL, n (%) | ||
| Intact | 394 (89.0) | |
| Partial rupture (non-reconstructed) | 17 (3.8) | |
| Total rupture (non-reconstructed) | 32 (7.2) | |
| Knee joint laxity (surgeon assessed), n (%) | ||
| No laxity | 384 (86.7) | |
| Slight laxity | 44 (9.9) | |
| Pronounced laxity | 15 (3.4) | |
Continuous variables are reported as means±SD and categorical variables as frequencies and percentages.
Percentages may not add up to 100% due to rounding.
ADL, function in daily living; BMI, body mass index; KOOS, Knee Injury and Osteoarthritis Outcome Score.